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05/17/2001 - Waste Reduction and Recycling Advisory Commission
AGENDA WASTE REDUCTION & RECYCLING ADVISORY COMMISSION EAGAN, MINNESOTA Eagan Municipal Center City Council Chambers THURSDAY, MAY 17, 2001 5:30 p.m. * ** I. ROLL CALL AND ADOPTION OF AGENDA II. APPROVAL OF APRIL 19, 2001 MEETING MINUTES III. VISITORS TO BE HEARD IV. ORGANIZATIONAL BUSINESS A. Sign Oath of Office I. INFORMATIVE A. "Improving Recycling of Residential Paper" Grant B. Dakota County Compost Project C. Community Service Open House —May, 31, 2002- - D. New Business in Eagan II. NEW BUSINESS A. Hirshfield's Recycled Paint Presentation I. OLD BUSINESS A. Adoption of Commission Goals and Meeting Schedule B. Discussion Regarding Subcommittees C. Discussion Regarding Waste Processing Related to Waste Hauler Licensing Cap VII. ADJOURNMENT Next meeting- June 21, 2001 The mission The mission of the Waste Reduction and Recycling Advisory Commission is to proactively assist the Eagan City Council by educating, encouraging and assisting the community in reducing and managing waste in an environmentally sound manner. MEMO TO: MEMBERS OF THE EAGAN WASTE REDUCTION & RECYCLING ADVISORY COMMISSION FROM: COMMUNICATIONS COORDINATOR FOOTE DATE: May 10, 2001 SUBJECT: EAGAN ADVISORY COMMISSION MEETING OF May 17, 2001 A regular meeting of the Eagan Waste Reduction & Recycling Commission will be held on Thursday May 17, 2001 from 5:30 p.m. until 7:00 p.m., at the Eagan Municipal Center in the City Council Chambers. Please contact Joanna Foote at (651) 681 -4604 by Tuesday, May 15 to indicate if you cannot attend. I. ROLL CALL AND ADOPTION OF AGENDA (5:30 -5:32) The agenda, as presented or modified, requires adoption by the Commission. ACTION TO BE CONSIDERED ON THIS ITEM: approve, deny or modify agenda II. APPROVAL OF APRIL 19, MEETING MINUTES (5:32 -5:35) A copy of the minutes of the Waste Reduction Commission meeting of April 19, 2001 is included as an attachment. ACTION TO BE CONSIDERED ON THIS ITEM: approve, deny or modify April 19, 2001minutes. III. VISITORS TO BE HEARD IV. ORGANIZATIONAL BUSINESS A. Sign Oath of Office The newly appointed members will be asked to sign an oath of office form. ACTION TO BE CONSIDERED ON THIS ITEM: Sign and return oath. V. INFORMATIVE A. "Improving Recycling of Residential Paper" Grant (No Discussion Necessary) Facts: As of May 8 about 50% of surveys have been returned. The responses are being recorded and a summary will be provided for discussion at the next meeting. B. County Compost Project (No Discussion Necessary) Reminder: The compost bin distribution is on May 19 Anyone interested in volunteering for this event contact Sue Bast at 952- 895 -4559 if you have not done so already. Maps will be available at the meeting if you need directions. C. Community Service Open House (No Discussion Necessary) Reminder: The Open House is on May 31 from 4 p.m. 7:30 p.m. The recycling department will have displays at this event. VI. NEW BUSINESS A. Hirshfield's Recycled Paint Presentation (5:35 -6:15) Linda Lindquist, Market Manager for Hirshfield's, will be presenting information about Hirshfield's Recycled Latex Paint. ACTION TO BE CONSIDERED ON THIS ITEM: Discussion VI. OLD BUSINESS A. Adoption of Commission Meeting Schedule with Goals (6:15 -6:25) The Commission began discussion regarding its 2001 meeting schedule and goals at its February meeting. A draft of the meeting schedule with goals was presented at the April meeting. The Commission may wish to continue discussion and adopt the meeting schedule with goals. ACTION TO BE CONSIDERED ON THIS ITEM: approve, deny or modify the 2001 Meeting Schedule with Goals. A copy of the draft of revised meeting schedule with goals is included as an attachment. B. Discussion Regarding Subcommittees (6:25 -6:40) The Commission may wish to discuss whether or not to continue to have subcommittees or if the current subcommittees need to be reorganized. ACTION TO BE CONSIDERED ON THIS ITEM: Discussion C. Discussion Regarding Waste Processing Related to Waste Hauler Licensing Cap (6:40 -6:56) Discussion was tabled on this issue at the April meeting. The Commission may wish to discuss possible educational opportunities related to waste processing. ACTION TO BE CONSIDERED ON THIS ITEM: Discussion VIII. ADJOURNMENT Next meeting- May 17, 2001 (6:57 -7:00) Subject to Approval MINUTES OF THE WASTE REDUCTION & RECYCLING ADVISORY COMMISSION Eagan, Minnesota April 19, 2001 A regular meeting of the Eagan Waste Reduction & Recycling Advisory Commission was held on Thursday, April 19, 2001 at 5:45 p.m. in the Council Chambers of the City Hall. Present were Gary Hansen, John Tapper, Kari Sammon, Rick Patraw, Clint Hooppaw, Linda Merkel and Patricia Hurd. Absent from the meeting were Donald Armborst and Doug Link. Also present were Recycling Intern Seubert, Recycling Coordinator Bast and Communications Coordinator Foote. Visitors present were Bev Schomburg of Dakota County Environmental Management and Resident Donald Rask. APPROVAL OF MINUTES The approval of the February 15 minutes was motioned by Hansen. It was seconded by Tapper with all members present voting in favor. ORGANIZATIONAL BUSINESS A. Sign Oath of Office Hooppaw signed the oath of office. NEW BUSINESS A. Discussion Regarding Waste Processing related to Waste Hauler Licensing Cap Don Rask, an Eagan resident, stated he received a letter from his union, Local Union 23, I.B.E.W. Members. The letter stated "numerous trash haulers are no longer bringing the vast majority of their trash to the Newport and Elk River RDF (Refuse Derived Fuel) Plants— rather, they are land filling the trash in Minnesota, Wisconsin, and Iowa .... By not hauling the trash to our plants, it is having a major impact on the future existence of the plants." The letter also encouraged members to change haulers that bring 100% of their trash to these plants. Rask is concerned that none of Eagan's licensed haulers bring 100% of the trash to either of these facilities. Schomberg, an Environmental Specialist with Dakota County, joined the Commission discussing this issue. The Commission discussed the waste processing at length and determined that the City is somewhat limited in controlling this issue. It is unclear whether a City contract with a hauler to process 100% of waste collected in Eagan would conflict with the City Councils' philosophy to have an open hauling system and what legal restrictions might be involved. Member Doug Link of BFI was not in attendance at the meeting but had forwarded an e-mail to staff explaining some of the factors involved in some of the waste haulers not processing 100% of waste at RDF facilities. The excerpt of that correspondence has been included: The disposal rate for waste not generated in Washington or Ramsey Counties at NRG is $66.79 per ton(those counties subsidize the plant $28.79 per ton). Dakota County will reimburse the hauler$12 per ton for waste that is burned. The net rate would then be $54.79 per ton. This rate is between $10 and $15 per ton higher than the average rate at Pine Bend or Burnsville landfill. Another reason that most haulers dispose of Eagan waste at Pine Bend or Burnsville landfills is the location of the landfills. Both landfills are in Dakota County. Because of this, the time taken to drive to both Waste Reduction & Recycling Advisory Commission Meeting Minutes Page 2 /April 19, 2001 landfills is much shorter and traffic much lighter than driving to Newport. Therefore, a hauler who hauled Eagan waste to NRG would have to charge quite a bit more to cover its increased disposal and trucking costs. The Commission discussed this further and suggested that educational measures might be developed which could increase awareness of this issue among residents. They also thought this might become a priority for some neighborhood organizations to stipulate within their contract or hauler agreement. The members decided to table the discussion until the next meeting to further discuss public education opportunities and other factors related to processing waste. B. Dakota County Compost Project Bast stated that the County Compost bin project sold 3,600 compost bins. About 75 residents attended the Eagan educational workshop regarding composting. 1,440 bins will be distributed in Burnsville on May 19 to residents from the northeastern areas of the County. Foote stated that the Eagan Healthy Communities New Resident Open House is also on May 19 There will be recycling information provided for distribution at this event. Waste Reduction & Recycling Advisory Commission Meeting Minutes Page 3 /April 19, 2001 C. Community Service Open House Foote stated that the Community Service Open House will be held on May 31 from 4 p.m. — 7:30 p.m. at the Civic arena. There will be free food, displays, equipment and entertainment tours of Cascade Bay. Bast stated that the Recycling Division is planning on having a recycled- content products display, paper making demonstrations and a game for kids. D. Review of County Grant Goals Bast reviewed the 2001 goals included in the County Grant. OLD BUSINESS A. 2001 Goals The Commission reviewed the revised draft of the 2001 goals. They decided to add the waste processing issue discussed earlier in the meeting. Foote stated that she spoke with Doug Link about touring BFI. He informed Foote that it would be possible for the members to tour the recycling and methane production facility. She added that the Commission could re- address forming subcommittees and accomplishing some tasks or goals via email /mail between meeting. B. 2001 Commission Meeting Schedule The Commission made no changes to the proposed meeting schedule. ADJOURNMENT Hurd moved to adjourn the meeting at 7:25 p.m. It was seconded by Hansen with all members present voting in favor. Date Secretary WASTE REDUCTION & RECYCLING ADVISORY COMMISSION 2001 MEETING SCHEDULE w /GOALS May Regular Meeting • Hirshfields Presentation • Discussion Regarding Waste Processing June Regular Meeting (Televised) • Procurement /Green Building Discussion • Mural wall and reusable mugs in Cascade Bay July No Meeting July 4 Parade /Celebration August Regular Meeting (Televised) • ARROW Program • Pollution Prevention Week • Discussion Regarding Waste Processing Related to Waste Hauler Licensing Cap September Tour of BFI • Markets Update (OEA Guest) • Review of County Grant Application October Regular Meeting (Televised) • America Recycles Day • RAM /SWANA Conference November Regular Meeting • Procurement /Green Building Discussion December No Meeting Holiday Season 1 O. Energy AssetssM Custom Consulting �.y 1 Xcel Energy ) ► ) Energy Analysis ' for the Eagan Central Park Community Center ) ) f ; a 1 Strategy Report first of three reports 0 June 6, 2001 7026.81 1 THEWEIDTGROUP 5800 Baker Road, Suite 100, Minnetonka, Minnesota 55345 Telephone 952.938.1588 Facsimile 952.938.1480 Electronic Mail twg@twgi.com www.theweidtgroup.com Energy Assets "'Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 ) Project Participants r Owner & Design Team i City of Eagan Ken Vraa TKDA Architects and Engineers Bill Armstrong Kathryn Poore- Larson r Todd Udenberg Rob Schweich r Energy Assets Team The Weidt Group Dan Katzenberger Paul Riemer Herzog Wheeler Peter Herzog June Wheeler Xcel Energy Julia Gauthier Ryan George Brian Mello ECC_1StrategyReport.doc THEWEIDTGROUP Page 2 Energy Assets s"' Custom Consulting Xcel Energy Eagan Central Park Community Center Strategy Report 67,000 sq. ft. June 6, 2001 , 7026.81 4 4 Table of Contents 4 INTRODUCTION 4 4 4 THE BUILDING 5 t THE PROCESS 6 BASE BUILDING RESULTS 8 STRATEGY TABLE 9 4 STRATEGY DESCRIPTIONS 11 APPENDICES 27 4 4 f t 4 t 4 4 4 4 4 4 4 4 4 4 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 3 f Energy Assets sM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft 7026.81 Introduction 11 This report and the attendant process are tools for assisting the owner and design team in making decisions about building design. A series of promising energy conservation strategies has been formulated by The Weidt Group and the Design Team, and this report documents the results of computer simulations for each strategy compared to a code level base model. With "hard" numbers attached to each energy strategy, potential energy savings are clear, and, when compared with costs, paybacks can be determined. A model of the building has been built using DOE -2.1E, a very sophisticated energy performance simulation program. The energy performance predicted by the model is based on hour -by -hour calculations using data and assumptions provided by the program (an average weather year is used for these simulations), the owner, the design team and The Weidt Group. This program should not be construed as correcting or overriding previous decisions or recommendations of the architect or engineer of record. The services performed by the Weidt Group are analytical in nature using tools and methods not normally part of the customary design contract. The architects and engineers of record remain responsible for the implementation of strategies and final engineering of systems as well as for determining the costs of various strategies. Following are the steps in this process. 1. Introductory meeting • Define Goals and intentions 9 • . Establish cost base 2. Phase 1 analysis • Computer modeling of code base and strategies by Energy Assets team 1 • Cost analysis by Design team 3. Strategy results meeting ** • Review of individual strategy results • Selection of bundles of strategies 4. Phase 2 analysis • Bundle energy analysis by Energy Assets team S • Further cost analysis by Design team (if needed) ' 5. Bundle Results meeting • Review of bundle results • Presentation of Xcel Energy incentive offers • Discussion of follow -up 6. Verification process ** Current stage in the process • ECC_1StrategyReport.doc THEWEIDTGROUP Page 4 • Energy Assets sm Custom Consulting Xcel Energy ` i'8'3' Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 The Building The building is a 67,000 sq. ft. community center planned for Eagan, MN. The upper level includes tenant office space, a 4 performance/aerobic space, and a running track above the gym. The lower level primary spaces are fitness, lounges, and three community rooms. The building has its own heating and cooling plant, with a hot water boiler system and an air- cooled electric chilling system. 1 4 The DOE2 model includes the following areas for each functional space type of the building. 4 Space Type(s) Area (s.f.) 4 Private office 2,595 4 Community Rooms 6,716 Gym 19,964 4 Locker Room & Shower 3,399 4 Storage 7,208 Corridor 11,993 4 Performance/Aerobic 2,330 Fitness/Cardio 4,856 4 Party /Craft & Senior Lounge 3,167 4 Indoor Playarea & Babysitting 3,602 Teen Center 2,088 Information about the building was provided by City of Eagan and TKDA. 4 4 t 1 4 4 4 4 4 4 FCC_IStrategyReport.doc THEWEIDTGROUP Page 5 4 4 w Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 i 67,000 sq. ft. 7026.81 The Process Computer Model This analysis utilizes DOE -2.1E, a sophisticated thermal and luminous building simulation program developed by Lawrence Berkeley Laboratory and supported by the United States Department of Energy. Thermal and luminous calculations are made on an hour -by -hour basis, using typical yearly climatic data, to determine the building's energy loads and system requirements. Building description input involves defining the building's geometry using a Cartesian coordinate system which locates, orients and sizes all spaces, walls, windows, doors, roofs and underground surfaces. Characteristics of materials (such as material conductance, inside surface reflectance, window transmittance, and surface absorption) are identified for each building component. In addition, schedules describing the building's internal load patterns are included to account for occupancy, equipment, electrical lighting and temperature set points, and the specific characteristics of the mechanical systems are accounted for. The computer models are simulated using the DOE -2 TMY (Typical Meteorological Year) weather file for Minneapolis, Minnesota. Parameters include outdoor dry and wet bulb temperature, wind velocity, cloud cover, solar radiation and i incidence angle for each hour of the year. It should be noted that variations will exist between the TMY weather file and actual weather conditions in which the building will be operated. 0 This computer model is intended to be used for comparison of the relative differences in net energy use for various design alternatives, compared to a base condition. It is not intended for system design and/or equipment selection. In addition, the actual energy use of this building is likely to be different from the DOE -2.1E simulations because there will be differences in the weather, operating parameters, occupancy, and other circumstances not anticipated in the model. Given those qualifications, however, this model offers sophisticated predictions of energy use, with estimations as good as any other means available for a building that has not been built. a a Building Characteristics The computer model is very specific about what is needed to define a building for analysis, and in order for the results to be credible a large number of building characteristics, schedules, energy costs, and other assumptions must be specified. The results, thus, are fully dependent on the validity of these assumed characteristics. A summary of this data can be found in the appendix. 1 Code Base Computer Model A DOE -2.1E Code Base model was created to provide a benchmark against which to compare energy performance for each option. Creation of the DOE -2.1E Code Base model begins with the architectural and engineering design of the building as it stands at the start of the Energy Assets process. Based on the set of limited building characteristics provided by the Design Team and default characteristics typical to buildings of this type, the Code Base model is created so that it just meets the current Minnesota energy standards. This building is used as the basis for energy performance comparisons. 1 Modeling of Specific Strategies Several strategy categories were created for this building, and strategies within each category bracket a range of acceptable design solutions. The list of strategies is based on input from the Assets team and feedback from the Design Team. These strategies are listed in Table 1. By running a range of solutions in each of the critical areas for energy conservation, the Energy Assets process is able to demonstrate the realm of what is possible for each energy strategy grouping. S • ECC_1StrategyReport.doc THEWE1DTGROUP Page 6 • • Energy Assets sm Custom Consulting Xcel Energy - Strategy Report t Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 Cost Base Identification and Payback Analysis 4 In order to make informed decisions about an energy strategy, it is important to consider both the energy savings and the incremental construction cost required to implement the strategy. While the Energy Assets process utilizes a Code Base model as the reference for dollar incentives from Xcel Energy, it is a hypothetical design, and it is not always practical or desirable to develop incremental costs from the code reference. Consequently, a Cost Base model is established as a reference for incremental cost calculations. For each building design component that the design team chooses to 4 investigate, one strategy level is selected as the Cost Base, and other levels are selected as alternates. Incremental costs are then developed by the design team for each alternate strategy and provided to the Energy Assets team for payback calculations. 4 Isolated Strategy Review 4 Each strategy is simulated individually and compared to both the Code Base and Cost Base models to illustrate the impact of each strategy alone. It is common for each strategy to have impacts of less than 10%. However, selecting 15 strategies, 4 each with an average value of 2% to 3 %, might result in an annual building energy cost performance on the order of 30% to 40% better than code. It is important to understand, however, that the results are not always 100% additive; two 4 strategies that save 2% alone, may not save 4% together. However, they are likely to save 3.5% to 3.8 %. 4 Bundle Identification Once the Isolated Strategy Analysis is done, the owner and design team should identify three bundles of strategies for simulation and further analysis. The bundles may be roughly organized as follows: 1. Include all strategies that are fairly certain to be included in the final design. 4 2. Include all of #1 but add those things you are likely to do if paybacks seem to be promising. 3. An additional variation of #1 or #2, or an optimized payback alternate 4 The bundle results are used by the design team to determine an appropriate construction and incentive solution. 4 4 4 4 4 4 4 4 • 4 4 4 4 4 4 ECC_1StrategyReport.doc THEWEIDTGROUP Page 7 ' 1 Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 1 Base Building Results The charts below show a breakdown of annual energy consumption and energy cost based on the Code Base computer model. The annual energy use prediction for the code base model is 189 KBTU /sq ft and the energy cost is $2.14 /sq ft. Total energy cost is approximately $145,000 per year at code level. Annual Energy and Cost Breakdown for 1 Eagan Community Center Energy 120$kdown (BTU) Energy Cost Breakdown ($) Lights 3% Equip 8% Lights 4% 13% • Fan/pump 11% tea, • Heat Cool Fan/pump 49% 10% 18% Heat 68% Cool 16% Heating and cooling are relatively high compared to standard office building types because of the high outdoor air requirements of this building. The code base does not include any energy recovery or control of outdoor air by carbon dioxide sensors, both of which will show significant energy savings in the following pages. 1 1 1 1 1 1 1 1 1 ECC_I StrategyReport.doc THEWEIDTGROUP Page 8 1 1 ■ Energy Assets sM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 4 67,000 sq. ft. 7026.81 i; Strategy Table 4 Below is a summary of all the strategies to be investigated. As a starting point The Weidt Group has identified recommended strategies based on past experience which typically have proven to be cost - effective. Many of these 4 strate: ies ma already be • lanned to be inco •orated into the existin • desi _• n. ID Window Glazing and Frame Unit COG Shading Visible number Alternatives U- Factor U- Factor Coefficient Trans. , W0601 Lo E clear 1/ alum frame (Code) 0.44 0.35 0.70 0.74 W0901 Lo E tint 1/ alum frame 0.44 0.31 0.47 0.63 W1201 Lo E clear hi VT/ alum frame 0.42 0.29 0.44 0.69 W1301 Lo E tint hi VT/ alum frame 0.42 0.29 0.35 0.60 W3201 TKDA Cost Base Glass 0.44 0.32 0.31 0.36 4 ID 4 number Daylighting Controls D # #01 Stepped Daylighting in Circulation 4 D # #02 Dimming Daylighting in Circulation D # #03 Stepped Daylighting in Fitness & Performance t D # #04 Dimming Daylighting in Fitness & Performance D ##05 Stepped Daylighting in Lounges & Indoor Play D # #06 Dimming Daylighting in Lounges & Indoor Play t D # #07 Stepped Daylighting in Community Rooms D # #08 Dimming Daylighting in Community Rooms 4 D # #09 Stepped Daylighting in Private Offices D # #10 Dimming Daylighting in Private Offices 4 ID Code / Strategy 4 number Envelope Insulation Alternatives Typical Level ER3W1 R -30 roof insulation R -22 R -30 ER2W2 R -16 wall insulation R -11 R -16 ER2W3 R -20 wall insulation R -11 R -20 ID Peak Annual hrs number Lighting Controls reduction reduction 4 LCPO1 Private Office occup. sensor control 15% 40% LCPO2 Private Office dual level switching 15% 15% 4 LCST1 Storage /Small Restroom Occupancy sensor 50% 70% LCCI3 Circulation manual dimming 25% 25% 4 LCGY2 Gymnasium multilevel switching 30% 30% LCDN2 Community Room dual level switching 15% 15% ` LCDN3 Community Room manual dimming 25% 25% LCFT2 Fitness/Cardio dual level switching 15% 15% LCPC2 Party/Craft dual level switching 15% 15% LCTC3 Teen Center manual dimming 25% 25% LCIP2 Indoor Playarea dual level switching 15% 15% LCPA2 Perf/Aerobic dual level switching 15% 15% 4 4 4 t t ECC_I StrategyReport.doc THEWEIDTGROUP Page 9 4 4 Energy Assets SM Custom Consulting Xcel Energy Strategy Report 9 Eagan Central Park Community Center June 6, 2001 . 67,000 sq. ft. 7026.81 9 Strategy Table (Continued) ID Typical Code n umber Lighting Design Alternatives Size w /st Strategy w /sf LDPO1 Private office direct system at 70 fc 12' x 14' 2.00 2.00 - 2.20 LDP02 Private office direct system at 50 fc 12' x 14' 2.00 1.55 - 1.75 LDPO3 Private office Indirect system at 50 fc 12' x 14' 2.00 2.00 - 2.20 $ LDPO4 PO Task/Ambient 30 fc ambient; 0.3 W /sf Task. 12' x 14' 2.00 1.25 -1.45 LDPO5 PO direct/indir, 85% reflct ceiling, 45 fc 12' x 14' 2.00 1.35 -1.55 9 LDGY1 Gym 10% better than code 60' x 90' 1.00 0.80 - 1.00 LDGY2 Gym 15% better than code • 60'x90' 1.00 0.75 - 0.95 LDGY3 Gym 20% better than code 60'x90' 1.00 0.70 - 0.90 LDFT1 Fitness /Cardio 10% better than code 100' x 40' 1.47 1.22 - 1.42 LDFT2 Fitness/Cardio 20% better than code 100' x 40' 1.47 1.08 - 1.28 - LDPA1 Perf/Aerobic 10% better than code 40' x 40' 1.58 , 1.32 - 1.52 LDPA2 Perf/Aerobic 20% better than code 40' x 40' 1.58 1.16 -1.36 $ LDTC1 Teen Center 9% better than code 25' x 25' 0.64 0.48 - 0.68 LDTC2 Teen Center 20% better than code 25' x 25' 0.64 0.41 - 0.61 $ LDPC1 Party/Craft 10% better than code 50' x 25' 0.58 0.42 - 0.62 LDPC2 Party /Craft 21% better than code 50' x 25' 0.58 0.36 - 0.56 II LDIP1 Indoor Playarea 10% better than code 50' x 50' 0.69 0.52 - 0.72 LDIP2 Indoor Playarea 20% better than code 50' x 50' 0.69 0.45 - 0.65 II ID Code Strategy Reference number Cooling Efficiency Efficiency Efficiency Size Tons $ MCH01 Chiller, 5% decr KW /ton, air cooled 1.41 1.34 over 150 MCH02 Chiller, 13% decr KW/ton, air cooled 1.41 1.23 over 150 . MCH03 Chiller, 18% decr KW/ton, air cooled 1.41 1.16 over 150 MCH07 Chiller, 0% decr KW /ton, wtr cooled 0.73 0.73 All 9 MCH04 Chiller, 10% decr KW/ton, wtr cooled 0.73 0.66 All MCH05 Chiller, 20% decr KW/ton, wtr cooled 0.73 0.58 All II MCH06 Chiller, 30% decr KW/ton, wtr cooled 0.73 0.51 All ID Code Strategy number Heating Efficiency Efficiency Efficiency MHT01 Gas boiler 83% effic 80% 83% . MHT03 Gas boiler w /condensing technology 80% 83% . ID number Motor Efficiency $ MMT03 Premium eff supply /retum fan motors MMT04 Premium eff pump motors D ID Load Responsive Equipment and Strategy 10 number Operation Code Level Level MLRO2 VSD's on supply air fans inlet vanes VSD . MLRO3 VSD on htg pump const. speed VSD MLRO4 VSD on clg pump const. speed VSD . ID Strategy number Conditioning of Outside Air Code Level Level . MOA02 CO2 control of outside air No Control CO2 ctrl MHRS1 Sensible Heat Recovery No Control 60% effic S MHRT1 Total Heat Recovery No Control 60% effic . ECC_1StrategyReport.doc TIEWEIDTGROUP Page 10 Energy Assets sM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center • 67,000 sq. ft. June 6, 2001 7026.81 , Strategy Descriptions Window Glazing and Frame Alternatives Strategy Objectives: To help select the glazing type(s) for improved heating and cooling performance. Strategy Description: Glazing types A variety of glazing types are evaluated for the existing base design. Low E clear insulated glass in a thermal break aluminum frame is presumed to be the code base for the purpose of this analysis, although it is up to the Design Team to determine which 4 glass will, in fact, meet code. Each glass type is distinguished by its U- Factor (average for a typical size unit [not center of glass]) Shading Coefficient (SC) and Visible Transmittance (VT). It is important to note that Low E hi VT glass type refers to spectrally 4 selective Low E, which is different from other "Low E" products in that the visible light transmission is higher relative to the shading coefficient. t Note that these strategies do not include daylighting controls. Daylighting controls are added in the next group of strategies. 4 ID Window Glazing and Frame Unit COG number Alternatives Shading Tran U- Factor U- Factor Coefficient icg Trans. 4 W0601 Lo E clear 1/ alum frame (Code) 0.44 0.35 0.70 0.74 W0901 Lo E tint 1 /alum frame 0.44 0.31 0.47 4 W1201 Lo E clear hi VT/ alum frame 0.63 W1301 Lo E tint hi VT/ alum frame 0.42 0.29 0.44 0.69 0.42 0.29 0.35 0.60 W3201 TKDA Cost Base Glass 0.44 0.32 0.31 0.36 1 4 4 4 4 4 4 4 4 f 4 4 ECC_1 StrategyReport.doc T11EWFdDTGROI)P i Page 11 4 Energy Assets SM Custom Consulting Xcel Energy Strategy Report • Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 ! Window Glazing and Frame Result 1 g Results 1 Annual Energy Savings Peak KW Savings 50 8500 $1,000 51,500 $2.000 82,500 0 5 10 15 20 25 30 • , • Lo E Orel/alum frame 51,108 15.9 0 • Lo E clear hi VT /alum frame $1,639 18.2 • r Lo E tint hi VT /alum frame 52.287 24.1 • 0 TKDA Cost Base Glen $2,218 26.6 0 • 0 Tabulated Results for Code Base Window Layout • Annual Annual Peak Energy Savings Percent Electric KW Percent ID Description S /sf S /sf Savings KW Savings Savings 0 W0601 Lo E clear 1 /alum frame Code $2.14 Ns Na 599 Na Na W0901 Lo E tint 1/ alum frame $2,12 $0 02 0 8 584 16 2.7% W1201 Lo E clear hi VT/ alum frame $2.11 $0.02 1.1% 581 18 3.0% 0 W1301 Lo E tint hi VT/ alum frame $2.10 $0.03 1.6% 575 24 4.0% W3201 TKDA Cost Base Glass $2.11 $0.03 1.5% 573 27 4.4% 0 Key Observations: • All glass alternates show good KW savings due to reduced solar gain. • With daylighting (next section) the relative savings for the various glass types will change due to the importance of visible light transmittance. If daylighting controls are employed, it is important to select glass, which has the best visible transmittance and low shading coefficient. 1 0 0 • 0 0 ECC_1StrategyRepoa doc THEWE1DTGROUP Page 12 0 0 Energy Assets s M Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 4 67,000 sq. ft. 7026.81 Daylighting Controls 4 Strategy Objective: t Reduce electric lighting energy in building perimeter areas in response to available daylight, using automated controls, which turn lights on and off. The impact of various glazing types on daylighting is also considered. 4 Strategy Description: t Stepped Daylighting Perimeter daylighting control circuit (tandem 4 The glazing and shading alternatives will each be considered in wired 2 tamps on circuit - 1 lamp on typ. circuit) conjunction with stepped daylighting controls. This strategy assumes that control devices turn off at least one row of Daylighting O Time clock lights at the perimeter of the building during the daylight hours. In 11 control relay or order to prevent lights from cycling on and off as outdoor light level A photoswitch varies, the lights would be controlled by one of two methods: f a control 1. a photoswitch set to turn lights off when exterior daylight 4 illuminance is above 400 footcandles Typical lighting circuit 2. an astronomical time clock which can be set to turn lights off 1 � hour after sunrise and turn lights on 1 hour before sunset. This 1:1 0 0 0 0 0 r0 0 0 4 type of control can be accomplished at a central building control relay station or locally by zone. 4 A schematic of perimeter stepped daylighting control is shown below. 4 4 Dimming Daylighting /\/ 4 The glazing and shading alternatives will each be considered 4 in conjunction with dimming daylighting controls. The glazing alternatives are considered in conjunction with — dimming daylighting controls. This strategy assumes that photosensors are linked to control devices that dim the lights within the daylight zone (a perimeter area with a depth 2 to 2.5 m times the height of the window head). This system would be transparent to the building occupant because the dimming system �� '' ! .s+ g'= 4 would be designed to continuously maintain the design footcandle .sa« : a ,n c i c ° level. For the purposes of this model, the design level would be 50 _ E $ e c fc. This strategy would require dimming electronic ballasts. z s E ' E x Photosensors would be located at least one per compass x o to orientation, at least one per floor. — — ID 4 number Daylighting Controls D ##01 Stepped Daylighting in Circulation D ##02 Dimming Daylighting in Circulation D # #03 Stepped Daylighting in Fitness & Performance 4 D ##04 Dimming Daylighting in Fitness & Performance D # #05 Stepped Daylighting in Lounges & Indoor Play 4 D ##06 Dimming Daylighting in Lounges & Indoor Play D ##07 Stepped Daylighting in Community Rooms D ##08 Dimming Daylighting in Community Rooms 4 D # #09 Stepped Daylighting in Private Offices D # #10 Dimming Daylighting in Private Offices 4 ECC_1StrategyReport.doc THEWE1DTGROUP Page 13 4 4 r Energy Assets SM Custom Consulting Xcel Energy Strategy Report IP Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 r r Daylighting Control Results r Annual Energy Savings Peak KW Savings S0 5300 5600 5900 51,200 51,500 0 3 6 9 12 15 Dayltg: CI Step; glzg: ': 0.8 TKDA 5120 �a r � g TKDA 91z9 5259 =': 1.9 r a. • Dayltg: FT/PA Step: " 1 . 2 glzg: TKDA „ 5190 Dayttg: FT /PA Dim; 2.9 6480 glzg: TKDA ; ,',.• .. Dayltg: PC/IP/TC i i 587 0.9 r Step; glzg: TKDA Dayttq: PC/IP/TC 5168 1.6 Dim; glzg: TKDA . Dayltg. DN Step: 5688 6.3 glzg: TKDA - Dayltg: DN Dim; 51,196 10.6 glzg: TKDA ,,,.. -,4. >, ".,. >� , _.......w ,r _ s m,..,A.u,, ..<. a� . r Dayltg: PO Step; 544 0.1 glzg: TKDA 0 Dayltg PO Dim; - 0.4 glzg: TKDA E199 g 9 Annual Annual Peak Energy Savings o Electric KW Percent ID Description S/sf S /sf Sav KW Savings Savings W0601 Lo E clear 1/ alum frame (Code) 52.14 n/a n/a 599 nfa n/a 03201 Dayttg: CI Step; qlzq: TKDA 52.10 50.03 2% 572 27 5% 03202 Dayttq: CI Dim; glzq: TKDA 52.10 50.04 2% 571 29 5% D3203 Dayttg: FT /PA Step; glzg: TKDA 52.10 50.04 2% 572 28 5% 03204 Dayttq: FT /PA Dim; glzg: TKDA 52.10 50.04 2% 570 30 5% 03205 Dayttq: PC/1P/TC Step; glzg: TKDA 52.10 50.03 2% 572 28 5% D3206 Dayttq: PC/IP/TC Dim; glzq: TKDA 52.10 $0.04 2% 571 28 5% D3207 Dayttq: DN Step; glzg: TKDA 52.10 50.04 2% 567 33 5% D3208 Dayttq: DN Dim; glzq: TKDA 52.09 50.05 2% 562 37 6% 03209 Dayttq: PO Step; glzq: TKDA 52.10 50.03 2% 573 27 4% 11 D3210 Dayttg: PO Dim; glzg: TKDA - 52.10 50.04 2% 572 27 - 5% Key Observations: • Note that the above results are for daylighting in combination with the planned glazing. To obtain the net effect of daylighting, values from the previous section were subtracted. S 11 S ECC_1StrategyReport.doc THEW ®TGROUP Page 14 0 0 Energy Assets sM Custom Consulting Xcel Energy Eagan Central Park Community Center Strategy Report 67,000 sq. ft. June 6, 2001 4 7026.81 Envelope Insulation Strategy Objectives: 4 To determine the value of insulation with respect to total energy performance. The level of insulation required may vary from prescriptive code values based on overall building energy performance. Strategy Description: One roof and two wall insulation levels are compared. Roof insulation may be traded off against wall insulation and / or window properties. 4 4 4 ID Code / Strategy 4 number Envelope Insulation Alternatives Typical Level ER3W1 R - 30 roof insulation R -22 R -30 4 ER2W2 R -16 wall insulation R -11 R -16 ER2W3 R -20 wall insulation R -11 R -20 4 4 4 t 4 4 4 4 t t 4 4 4 4 4 4 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 15 4 4 ' Energy Assets SM Custom Consulting Xcel Energy Strategy Report 1 Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 • Envelope Insulation Results 1 $ Roof Annual Energy Savings Roof Peak KW Savings $o $1.000 $2,000 $3,000 $4,000 0 2 4 6 8 • 1 ' R30 roof Insulation $1,022 4.8 1 1 Wall Insulation Variations Wall Annual Energy Savings Wall Peak KW Savings $0 $1,000 $2,000 $3,000 $4,000 0 2 4 6 8 $ R -16 wall insulation $2,279 II 1/ R-20 wall insulation $2.994 6.1 1 $ Annual Annual Peak Energy Savings Percent Electric KW Percent ' ID Description S /sf S /sf Savings KW Savings Savings ER3W1 R - 30 roof insulation $2.12 $0.02 0.7% 595 4.8 0.8% ER2W2 R - 16 wall insulation $2.10 $0.03 1.6% 594 5.7 1.0% ER2W3 R - 20 wall insulation $2.09 $0.04 2.1% 593 6.1 1.0% $ Key Observations: • Envelope improvements are often expensive to implement, and thus have long paybacks. However, some wall S configurations lend themselves well to higher insulation levels. II 1 • 1 1 , 1 1 ECC_1StrategyReport.doc 'THEWE1DTGROUP Page 16 1 1 Energy Assets sM Custom Consulting Xcel Energy Eagan Central Park Community Center Strategy Report June 6, 2001 t 67,000 sq. ft. 7026.81 Lighting Controls 4 Strategy Objective: ` . To reduce lighting energy consumption by turning the lights off when a space is unoccupied (occupancy sensors) or by manually reducing the light levels required for the task (dimming or dual switching). Strategy Description: Occupancy sensors control Most rooms (depending on size) will require one to two ceiling mount or high wall mounted sensors controlling all lights within the space. Sensor should provide adequate coverage and sensitivity to sense minimal motion at main task area and have a time 4 delay setting up to 30 minutes to reduce "False- Offs ". Smaller rooms can incorporate one wall box or ceiling mounted occupancy sensor per room. Larger rooms should use one ceiling/wall mount sensor per 500 to 1,000 of floor area. Sensors should provide adequate coverage and sensitivity to sense minimal motion at main task area. To reduce "False -On's" the sensor placement should t not view out a door and should have the option to provide manual on and automatic off control. Wall switches will still be required for room darkening purposes. Dual Level/ Multilevel Switching t Applicable for rooms with variable light level requirements. Lights are switched such that two or more levels of output can be 4 attained by manual switching. 4 Manual dimming Applicable for rooms with variable light level requirements including concentrated presentation or AudioNisual requirements. 4 Electronic dimming ballasts are used with manual dimming controls in place of wall switches. Normally provide two dimmer controls in room, one controlling lights at the presentation end of room and one controlling lights over the remaining area. Lumen maintenance control is also assumed for this strategy. Some areas may utilize an automatic timer to turn lights down at night rather than occupancy sensors. The control could be 4 accomplished either by a devoted timer or by the energy management system. 4 ID Peak Annual hrs 4 number Lighting Controls reduction reduction 4 LCPO1 Private Office occup. sensor control 15% 40% LCPO2 Private Office dual level switching 15% 15% LCST1 Storage /Small Restroom Occupancy sensor 50% 70% 4 LCCI3 Circulation manual dimming 25% 25% LCGY2 Gymnasium multilevel switching 30% 30% 4 LCDN2 Community Room dual level switching 15% 15% LCDN3 Community Room manual dimming 25% 25% 4 LCFT2 Fitness/Cardio dual level switching 15% 15% LCPC2 Party /Craft dual level switching 15% 15% f LCTC3 Teen Center manual dimming 25% 25% LCIP2 Indoor Playarea dual level switching 15% 15% L 4 CPA2 Pert /Aerobic dual level switching 15% 15% 4 4 [ 4 ECC_1 StrategyReport.doc THEWEiDTGROUP Page 17 4 V Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 II 67,000 sq. ft. 7026.81 I II Lighting Control Results Annual Energy Savings Peak KW Savings ' SO $200 5400 $600 5800 51,000 0 2 4 6 8 10 II Private Office =up. sensor 5669 1111 0.9 control Private Office dual level E339 ' 0.2 II switching Storage /Small Restroom _ $120 2.1 II Occupancy sensor Circulation mmud Miming , $28 _ 0.7 G ymnasium multilevel $908 9.3 switching , Commonly Room dual level 97 2.8 switching II Cenmuhity Room manual 5500 4.4 ellmmIng Fitness/Circle dual level _ 5137 1111 0.8 II switching PertyICrmR dud level ' 521 ' 0.3 switching Teen Center manual dimming . $37 II 0.5 Indoor PIayarea dud level ' $21 ' 0.3 switching PsNAsoblc dual level ■ $21 ' 0.3 switching ■ Modeled Annual Annual Peak Area Energy Savings Percent Electric KW Percent ID Description sf S /sf S /sf Savings KW Savings Savings II CODE/ Code Base $2.14 nla n/a 599 n/a Na LCPO1 Private Office occup. sensor control 2,595 $2.13 $.01 0.5% 599 0.9 0.2% LCPO2 Private Office dual level switching 2,595 $2.13 $.00 0.2% 599 02 0.0% LCST1 Storage /Small Restroom Occupancy sensor 7,208 $2.14 $.00 0.1% 597 2.1 0.4% LCCI3 Circulation manual dimming 11,993 $2.14 $.00 0.0% 599 0.7 0.1% LCGY2 Gymnasium multilevel switching 19,964 $2.12 $.01 0.6% 590 9.3 1.6% LCDN2 Community Room dual level switching 6,716 $2.13 $.00 0.2% 597 2.6 0.4% LCDN3 Community Room manual dimming 6,716 $2.13 $.01 0.3% 595 4.4 0.7% LCFT2 Fitness/Cardio dual level switching 4,856 $2.14 $.00 0.1% 599 0.8 0.1% LCPC2 Party/Craft dual level switching 3,167 $2.14 $.00 0.0% 599 0.3 0.1% LCTC3 Teen Center manual dimming 2,088 $2.14 $.00 0.0% 599 0.5 0.1% LCIP2 Indoor Playarea dual level switching 3,602 $2.14 $.00 0.0% 599 0.3 0.1% LCPA2 Perf/Aerobic dual level switching - 2,330 $2.14 $.00 0.0% 599 0.3 0.1% ' Key Observations: • • These results are solely dependant on the assumed schedule reductions as shown on the previous page. In actuality, some spaces are likely to be more or less occupied, and thus savings would be less or more. Generally, those spaces 10 with more intermittent use will benefit from occupancy sensors. . • Other space types may show good paybacks depending on installation costs. II II II - ECC_1StrategyReport.doc THEWEIDTGROUP Page 18 III ID Energy Assets sM Custom Consulting Xcel Ene t �3' Strategy Report Eagan Central Park Community Center June 6, 2001 t 67,000 sq. ft. 7026.81 Lighting Design Alternat 4 4 Strategy Objectives: 4 To reduce the amount of installed lighting power by alternative design and illuminance levels. Strategy Description: The scope of the lighting design strategies identified below is limited to building spaces that have potential to have lower wattage 4 than the code maximum It is assumed that other areas, such as mechanical spaces will be designed to meet the code base W /sf requirements. 4 LDPO1 — Direct system at 70 footcandles a � :� E 43 Utilizes direct parabolic or acrylic lens troffer fixtures with F32T8 lamps and electronic „ r� e .3.R_ ballasts with a 70 footcandle average illumination level requirement for the various .1 spaces. �..� .��. �,yx' S � � ��s,, max:: LDPO2 — Direct system at 50 footcandles 1:411,0ria 4 Utilizes direct parabolic or acrylic lens troffer fixtures with F32T8 lamps and electronic ballasts with a 70 footcandle average illumination level requirement for the various x s spaces. a 0 4 X X5, $3' f 4 LDPO3 — Indirect system at 50 footcandles This is an indirect fixture system using F32T8 lamps and electronic ballasts, designed to c F h . �,°3 A 4 provide an average of 50 footcandles of indirect illumination within the space. The �o ,) d indirect lighting system provides a uniform distribution and low contrast light. This ; 4 strategy requires a ceiling reflectance of at least 75 %. n fl c LDPO4 is a task/ ambient system using an indirect fixture system comprised of F32T8 lamps and electronic ballasts to provide ambient light at 25 to 30 fc. Task lighting assumes 2 - 20 W task lights per workstation. Open office workstation density is assumed to be one station per 125 sf of gross open office area. Y LDPO5 — Direct/indirect with 85% reflective ceiling at 45 footcandles (Open offices, private offices and conference rooms) � � , Utilizes a direct/indirect fixture system with F32T8 lamps and electronic ballasts, ` .. k • ..N y " 1 designed to provide an average of 35 to 40 footcandles (maintained) within the space. ,:t7,1-,';',,,,i:,,,74,,%,.., r The indirect portion of the lighting system provides a uniform distribution and low j , * , - , 45 Fc contrast light. This strategy requires a ceiling reflectance of about 85 %. ' €,: 4 The non office space types lighting design strategies were modeled simply as a fraction of the code wattage rather than outlining a particular scheme. 4 4 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 19 4 • Energy Assets SM Custom Consulting Xcel Energy Strategy Report 0 Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 Lighting Design Results b g Annual Energy Savings Peak KW Savings 1 (5200) (5100) $0 5100 $200 $300 $400 $500 0 1 2 3 4 5 LDP01 (5114) - 0 LDP02 5370 i] 0.3 LDP03 (5114) - 0 LDPO4 5422 _ 0.5 r 5399 .11. 0 . 5 LDP05 LDGY1 5308 3.1 ' LDGY2 $462 4.7 r LDFT1 - 595 _ 0.5 LDFT2 5185 - 1 1 LDPA1 1 515 U 02 LDPA2 •528 RN 0.4 LDTC1 .519 •02 LDTC2 111 $31 MI 0.4 LDPC1 1 514 U 02 LDPC2 • $26 - 0.4 ' LDIP1 1 514 •02 LDIP2 MI $28 MI 0.4 11 Bldg Annual Annual Peak Ltg. Energy Savings % Electric KW Percent ID Description W /sf $ /sf S /sf Say KW Savings Savings CODE1 Code Base 1.09 $2.14 n/a n/a 599 n/a n/a LDPO1 Private office direct system at 70 fc 0.08 $2.14 ($0.00) -0.1% 599 0.0 0.0% LDPO2 Private office direct system at 50 fc 0.06 $2.13 $0.01 0.3% 599 0.3 0.1% LDPO3 Private office Indirect system at 50 fc 0.08 $2.14 ($0.00) -0.1% 599 0.0 0.0% V LDPO4 PO Task/Ambient 30 fc ambient; 0.3 W /sf Task. 0.05 $2.13 $0.01 0.3% 599 0.5 0.1% LDPO5 PO direct/indir, 85% reflct ceiling, 45 fc 0.06 $2.13 $0.01 0.3% 599 0.5 0.1% LDGY1 Gym 10% better than code; 0.26 $2.13 $0.00 0.2% 596 3.1 0.5% LDGY2 Gym 15% better than code; 0.25 $2.13 $0.01 0.3% 595 4.7 0.8% LDFT1 Fitness/Cardio 10% better than code; 0.09 $2.14 $0.00 0.1% 599 0.5 0.1% LDFT2 Fitness/Cardio 20% better than code; _ 0.08 $2.14 $0.00 0.1% 598 1.0 0.2% LDPA1 Pert /Aerobic 10% better than code; 0.05 $2.14 $0.00 0.0% 599 0.2 0.0% LDPA2 Perf/Aerobic 20% better than code; 0.04 $2.14 $0.00 0.0% 599 0.4 0.1 % LDTC1 Teen Center 9% better than code; 0.02 $2.14 $0.00 0.0% 599 0.2 0.0% LDTC2 Teen Center 20% better than code; 0.02 $2.14 $0.00 0.0% 599 0.4 0.1% 11 LDPC1 Party /Craft 10% better than code; 0.02 $2.14 $0.00 0.0% 599 0.2 0.0% LDPC2 Party /Craft 21% better than code; 0.02 $2.14 $0.00 0.0% 599 0.4 0.1% LDIP1 Indoor Playarea 10% better than code; 0.03 $2.14 $0.00 0.0% 599 0.2 0.0% LDIP2 Indoor Playarea 20% better than code; 0.03 $2.14 $0.00 0.0% 599 0.4 0.1% 1 Key Observations: 0 • For private offices, 70 fc (footcandle) direct and 50 fc indirect office designs are slightly worse than code; 50 fc direct is substantially better than code. a a ECC_1StrategyReport.doc THEwEIDTGROUP Page 20 1 1 Energy Assets sM Custom Consulting Xcel Ene , �Y Strategy Report Eagan Central Park Community Center June 6, 2001 • 67,000 sq. ft. 7026.81 • • Mechanical Efficiencies • Strategy Objectives: To compare the incremental improvements in available cooling system, heating system and motor efficiencies on annual energy II costs and peak kW reductions. Cooling E t g fflrciency Strategy Description: Change from a code level air - cooled chiller to equi . ment with im . roved coolin _ efficienc as described below. ID Code Strategy Reference number Cooling Efficiency Efficiency Efficiency Size Tons MCH01 Chiller, 5% decr KW/ton, air cooled 1.41 1.34 over 150 MCH02 Chiller, 13% decr KW/ton, air cooled 1.41 1.23 over 150 MCH03 Chiller, 18% decr KW /ton, air cooled 1.41 1.16 over 150 MCH07 Chiller, 0% decr KW/ton, wtr cooled 0.73 0.73 All MCH04 Chiller, 10% decr KW /ton, wtr cooled 0.73 0.66 All MCH05 Chiller, 20% decr KW /ton, wtr cooled 0.73 0.58 All 4 MCH06 Chiller, 30% decr KW /ton, wtr cooled 0.73 0.51 All 4 Heating Efficiency Strategy Description: 4 Change from code level gas heating system to high efficiency equipment as described below. ID Code Strategy 4 number Heating Efficiency Efficiency Efficiency MHT01 Gas boiler 83% effic 80% 83% MHT03 Gas boiler w /condensing technology 80% 83% Motor Efficiency Strategy Description: Change from code level motor efficiencies on HVAC fans and pumps to premium motor efficiencies. Average efficiency 4 improvement is estimated to be 2.5 percentage points. This assumes fan horsepower ratings to fall within the range of 10 to 40 hp. Smaller fans will actually show greater savings (3 to 5%), and larger fans will show slightly lower savings (approx. 2 %). 4 ID 4 number Motor Efficiency MMT03 Premium eff supply /return fan motors 4 MMT04 Premium eff pump motors ( Motor Code open Code dosed Premium open Size 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 4 HP RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM 1 82.5 77.0 72.0 80.5 75.5 72.0 85.0 1.5 80.0 82.5 82.5 75.5 78.5 81.5 82.5 75.5 87.5 87.5 4 2 82.5 82.5 84.0 85.5 81.5 82.5 82.5 82.5 87.5 87.5 3 82.5 86.5 85.5 86.5 82.5 84.0 84.0 81.5 90.2 89.5 5 85.5 86.5 86.5 87.5 85.5 85.5 85.5 84.0 89.5. 89.5 89.5 4 7.5 85.5 88.5 88.5 88.5 85.5 87.5 87.5 85.5 89.5 91.7 91.7 10 87.5 88.5 90.2 89.5 87.5 87.5 87.5 87.5 90.2 91.7 91.7 15 89.5 90.2 89.5 89.5 87.5 88.5 89.5 88.5 91.0 93.0 92.4 20 90.2 91.0 90.2 90.2 88.5 90.2 89.5 89.5 92.4 93.6 92.4 92.4 4 25 91.0 91.7 91.0 902 89.5 91.0 90.2 89.5 93.0 94.1 93.6 92.4 30 91.0 91.7 91.7 91.0 89.5 91.0 91.0 90.2 93.6 94.1 93.6 93.6 t 40 91.7 92.4 91.7 90.2 90.2 91.7 91.7 90.2 93.6 94.5 94.1 93.6 a 50 91.7 92.4 91.7 91.7 90.2 92.4 91.7 91.0 93.0 94.5 94.1 93.6 60 93.0 93.0 92.4 92.4 91.7 93.0 91.7 91.7 93.6 95.4 95.0 94.1 4 75 93.0 93.6 93.0 93.6 92.4 93.0 93.0 93.0 94.5 95.4 95.4 94.5 100 93.0 93.6 93.6 93.6 93.0 93.6 93.0 93.0 94.5 96.2 95.4 95.0 125 93.0 93.6 93.6 93.6 93.0 93.6 93.0 93.6 95.0 95.4 95.4 95.0 ' 150 93.6 94.1 93.6 93.6 93.0 94.1 94.1 93.6 200 _ 93.6 94.1 94.1 93.6 - 94.1 94.5 94.1 94.1 _ II ECC_l StrategyReport.doc THEWEIDTGROUP Page 21 s 1 1 Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 7026.81 1 67,000 sq. ft. o Mechanical Efficiency Results • Annual Energy Savings Peak KW Savings 1 $0 $5.000 610,000 615,000 $20,000 625 $30.000 0 50 100 150 200 250 300 350 Cog Efficiency MCFg1 ■ $1,946 1 1 MCF02 $5,060 59.6 1 MCH03 - 67,006 82.6 MCH37 - 514,058 216.4 • MCH:4 $16,056 239.8 1 MCF105 518,053 263.3 1 MCH06 $20,050 286.8 • Heating Efficiency MHT01 III 52,813 0 • MH G3 526,603 0 • Motor Etfidency 1 MMt03 I $312 • . MMT04 1 5107 0.6 1 . Annual Annual Peak Energy Savings Percent Electric KW Percent • ID Description $ /sf S /sf Savings KW Savings Savings C ODE1 Code Base $2.14 n/a n/a 599 n/a n/a Cooling Efficiency • MCH01 Chiller, 5% decr KW/ton, air cooled $2.11 $0.029 1.3% 576 23.0 3.8% MCH02 Chiller, 13% decr KW/ton, air cooled $2.06 $0.075 3.5% 540 59.6 9.9% • MCH03 Chiller, 18% decr KW/ton, air cooled $2.04 $0.10 4.8% 517 82.6 13.8% MCH07 Chiller, 0% decr KW/ton, wtr cooled $1.93 $0.21 9.7% 383 216.4 36.1% MCH04 Chiller, 10% decr KW/ton. wtr cooled $1.90 $0.24 11.1% 360 239.8 40.0% 10 MCH05 Chiller, 20% decr KW/ton wtr cooled $1.87 $0.27 12.4% 336 263.3 43.9% MCH06 Chiller, 30% decr KW/ton, wtr cooled $1.84 $0.30 13.8% 313 286.8 47.8% Heating Efficiency 0.0 0.0% MHT01 Gas boiler 83% effic $2.10 $0.04 1.9% 599 MHT03 [d:1 s•- do =re:dK a.t::a.: �untc- :ari�.•la:• $1.75 $0.39 18.3% 599 0.0 0.0% • Motor Efficiency MMT03 Premium eff su• • /retum fan motors $2.13 $0.00 0.2% 597 2.4 0.4% MMT04 Premium eff •um• motors $2.14 $0.00 0.1% 599 0.6 0.1% O Key Observations: • • Cooling strategies show high potential for both annual energy savings and peak KW savings. • The cost savings for the condensing boiler are obtained by reduced natural gas consumption, which is listed in the detailed results in Appendix B. The high cost savings result from high energy requirements to condition outside air in the code base building. 0 • Motors show relatively small savings, but may still be cost - effective is costs are comparably small. • ECC_1StrategyReport.doc THEWE1DTGROUP Page 22 IIP • Energy Assets S"t Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 4 Load Responsive Equipment and Operation rategy Objectives: 4 To evaluate mechanical equipment and controls that are capable of responding to hourly variations of the building's heating, 4 cooling and ventilation loads. Strategy Description: 4 Change from code base condition to variable speed drives on fans and pumps. For supply and return air fans, the code level 4 condition is inlet vane control. For pumps and cooling tower fans, the code level is constant speed. 4 MLRO2 — Variable speed drives on supply air fans This strategy includes replacing the constant speed drives/inlet vane control on the supply air fans with variable speed drives. 4 MLRO3 — Variable speed drives on heating pumps This strategy includes replacing the constant speed drives on the heating pumps with variable speed drives. MLRO4 — Variable speed drives on cooling pumps This strategy includes replacing the constant speed drives on the cooling pumps with variable speed drives. 4 4 ID Load Responsive Equipment and Strategy 4 number Operation Code Level Level MLRO2 VSD's on supply air fans inlet vanes VSD MLRO3 VSD on htg pump const. speed VSD 4 MLRO4 VSD on clg pump const. speed VSD 4 4 f 4 4 4 4 f 4 4 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 23 4 1 Energy Assets SM Custom Consulting Xcel Energy Strategy Report 11 Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 1 I Load Responsive Results 1 1 Annual Energy Savings Peak KW Savings 50 5500 51,000 51,500 52,000 $4500 0 5 10 15 VSD's on supply sir tans 52,354 12.4 VSD on htg pump 5707 2.8 VSD on dg pump $1,723 2.6 0 Annual Annual Peak Energy Savings Percent Electric KW Percent Description S /sf S /sf Savings KW Savings Savings CODE1 Code Base $2.14 n/a n/a 599 n/a n/a MLRO2 VSD's on s • •1 air fans $2.10 $0.03 1.6% 587 12.4 2.1% MLRO3 VSD on ht • • um • $2.13 $0.01 0.5% 597 2.8 0.5% 0 MLRO4 VSD on cl• •um• $2.11 $0.03 1.2% 597 2.6 0.4% II Key Observations: • VSD's on supply fans show high savings for both energy cost and peak KW. • Pump and motor savings are relatively lower, but may still be attractive if first costs are reasonably low. 1 1 1 1 1 1 1 II II II 1 11 . ECC_IStrategyReport.doc THEWEIDTGROUP Page 24 1 1 Energy Assets sM Custom Consulting Xcel Energy - ` Eagan Central Park Community Center Strategy Report 67,000 sq. ft. June 6, 2001 7026.81 4 Conditioning of Outside Air 4 Strategy Objectives: To reduce the amount of energy required to condition outside air, by reducing the volume of air based on occupancy 4 of the building or by recovery of energy from the building exhaust air. Strategy Description: 4 4 MOA02 CO control of outside air Outside air is controlled by a CO2 sensor in the return air. The CO sensor control level should be set to maintain a threshold of 4 roughly 1000 ppm to provide ventilation of human and non -human source contaminants (e.g., VOCs, cleaning compounds, etc). MHRS1 Sensible Heat Recovery 4 This strategy represents recovery of heat energy from the exhaust/relief air stream to the unconditioned ventilation air stream. This strategy shall be accomplished via a plate heat exchanger, or run around hydronic loop. The strategy shall include controls to disable heat recovery when it is not advantageous (i.e. air side bypass of plate exchanger or enthalpy control of hydronic pump). E MHRT1 Total Heat Recovery 4 This strategy represents recovery of both sensible and latent heat from the exhaust/relief air stream to the unconditioned ventilation air stream. This strategy shall be accomplished via a rotary (heat - wheel) air -to -air heat exchanger. The strategy shall include 4 controls that disable the heat wheel when heat recovery is not advantageous; however, an air -side bypass around the heat recovery is not required. t ID Strategy 4 number Conditioning of Outside Air Code Level Level MOA02 CO2 control of outside air No Control CO2 ctrl 4 MHRS1 Sensible Heat Recovery No Control 60% effic MHRT1 Total Heat Recovery No Control 60% effic 4 4 4 4 4 4 4 4 4 4 ECC_l StrategyReport.doc I?tEWEIDTGROUP 4 Page 25 4 ' Energy Assets SM Custom Consulting Xcel Energy Strategy Report i. Eagan Central Park Community Center June 6, 2001 1 67,000 sq. ft. 7026.81 • Conditioning of Outside Air 1 Annual Energy Savings Peak KW Savings $0 $10,000 320,000 $30,000 $40,000 350,000 0 20 40 60 80 100 120 140 1 CO2 control of outside air $42,436 121.4 0 0 ' Sensible Heat Recovery $28,942 2.8 0 Total Heat Recovery 339,001 123.9 1 • Annual Annual Peak Energy Savings Percent Electric KW Percent ID Description $ /sf S /sf Savings KW Savings Savings CODE1 Code Base $2.14 n/a n/a 599 n/a n/a MOA02 CO2 control of outside air $1.51 $0.62 29.2% 478 121.4 20.3% MHRS1 Sensible Heat Recove $1.71 $0.43 19.9% 597 2.8 0.5% MHRT1 Total Heat Recove $1.56 $0.57 26.9% 476 123.9 20.7% 1 Key Observations: • CO2 control of outside air saves considerable energy and peak KW. • Savings for the sensible and total energy recovery systems are substantial, both for energy cost and peak KW. • Note that savings from these strategies are not additive (i.e., if both CO2 control AND total heat recovery are 1 installed, the total kW saved will still be approximately 120 kW. This is because both strategies are having the same effect on the code base peak.) 1 1 1 • 11 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 26 11 Energy Assets S "' Custom Consulting Xcel Energy IL Eagan Central Park Community Center Strategy a Report 67,000 sq. ft. June 6, 2001 4 7026.81 Appendices 4 1 A. Building Characteristics B. Detailed Results t 4 4 4 4 4 4 4 t 4 4 ( 4 4 4 4 4 4 4 4 4 4 ECC_1 StrategyReport.doc THEWEIDTGROUP Page 27 4 4 Energy Assets sM Custom Consulting Xcel Energy Strategy Report ,. Eagan Central Park Community Center June 6, 2001 >� 67,000 sq. ft. 7026.81 Envelope & Operating Building Characteristics Appendix A Eagan Community Center Constructions B. Code Cost Lightweight Frame T • X1;173 • •ria Frame w/ masonry exterior Unit U -facto Masonry Shading coat +_ Visible trans Roofs Frame • j Window treatment (list building areas w/ blinds /shades /etc.) Steel -1 ' 1 Concrete 111 Interior Floors Utility Rates • ) Electric Summer Demand 926 $/kw Steel • f -.h,. . •.- : • • 6.61 $/kw Concrete pj Electric • umption 0.031 Gas Rate 0.8 $/therm Building Schedule The building schedule was assembled from information provided by the city of Eagan; specifically Ken Vraa's memo dated May 3, 2001. The building will be operated seven days a week year round. The general building hours will be 6:00 am to 11:00 pm Monday through Saturday but 9:30 am to 7:00 pm on Sunday. The people, lighting, and equipment loads were estimated for the various space types for each hour of the year. As a note about the construction parameters above, the wall, roof and interior floor selections refer to building mass for thermal computations. Since several wall constructions will be used in the building, frame with masonry exterior was chosen to represent a composite wall mass. ) • ECC_1StrategyReport.doc THEWEIDTGROUP Page 28 • Energy Assets SM Custom Consulting Xcel Ener g3' • St , Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 4 Mechanical Building Characteristics Appendix A Eagan Community Center 4 Mechanical System Data Pa rty Locker 4 Space type I A lva C Rooms I Gym Room.I Indoor Storage Corridor Slower I ardio I aft Playtime Cantor Teen Canter , Air Handler Type Constant volume 1 X x ' Variable Atr Volume X I X x I x B X I x B X X X Unit Ventilator I A 4 irflow Variables 1 T- Suppl ctmisf 1.77 ' 2 . 0 0 .2/.1 i 1.35 ®' i 4 E dmisf =. —:— — — — —i— — — _ Mill elm ratio ©, 40% i1 : -- lici_ m al Min % outside air EMI sox Iffrim Mai © ® te% 21% p; 15% Ri ' Outside air control 4 Fixed efm X Proportional to supply cfm X - X I X I X I X X I X IX X X I other 4 Fan Static estimate Return Inehas 1.0 J1 1.0 1.0 9 1.0 1 1.0 1 1.0 1.0 1.0 d 1.0 1 1.0 J 1.0 Zone Heat Source 4 HW Reheat X X X X X X X Baseboard Bsboerd X {{1111 I I X X I X I 4 Other I I I Humidity Control _ Maximum s tpelnt 25% 1 25% 25% ' 25% 25% 1 25% ' 25% ' 25% 25% ' 25% 25% Minimum setpoint , 30% 30% 30% 1 l so% 30% 3074 Sox 30% 30% Sox 30% I 4 Heating Plant / System Gas Rooftops , 1 ' 1 4 r 1 ' Central Gas Boiler 1 Central 011 Bir ■ � + 1 { - Efficiency flavail — f ismitimi O 4 ther: — •— •—'— — t— +— ; -4 — + Cooling Plant / System , Air Cooled DX Rooftops nos - -r Evap. Cooled DX Rooftops -- — {— — — —� —�— Alr Cooled Chiller r x x © ©, x t © . © © � x - -_ Water Cooled Chiller 1 _00.......r � - WEI © IMO EfRciencY - -- 1- t - - - +- of 1 4 4 4 4 4 4 4 ECC_IStrategyReport.doc '1}-IEWEIDTGROUP Page 29 4 4 tv Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 . 67,000 sq. ft. 7026.81 Eagan Community Center Appendix B Energy Costs Pay! 1 ot 10 O 67,917 SO.FT. Iteml2ed Costs i Totals pr bldg s. tt Totals for Buildin1 A 3 3 g z. � 1 G gp s strategy S 1 1 1 1 at * I I } li • Cods Base; CODE? 11.050 1345 1.378 1.277 1.098 12.14 1145,217 Lo E tint 1/ alum frame: W0001 11.058 1.327 1.375 1.277 1.088 $2.12 $0.02 0.8% 10.13 5144,100 81,14 L0 E clear N VT/ alum bane; W1201 11.050 $325 1.374 1.277 5.088 $2.11 50.02 1.1% 50.19 $143.814 51,833 1 Lo E tint N VT/ alum frame; W1301 51.050 1317 1374 $277 5.088 $2.10 10.03 1.6,14 10.26 6142,930 $2,297 TKDA Cost Base 02ass; W3201 11.055 5313 1373 $277 8.088 62.11 80.03 1.511, $0.26 1142,991 *2.219 Doyle: CI Sep; pig LoE ce 1; 00601 111.053 1.346 1.370 1.271 8.088 $2.14 $0.00 0.1% 10.04 *145.003 $124 D4y4g: C1 Sep; Om LoE tint 1; 00001 $1.058 8..328 $.376 $271 8.088 82.12 10.02 0.9% *0.37 *143,879 *1.239 Daft CI Step; glzg: LoE ck N VT; 01201 11.053 11.328 5.375 1.271 1.088 62.11 *0.03 12% *0.53 8143,445 *1,760 Day1g: CI Step; 9109: LoE tint N VT; 01301 $1.052 1.318 8.375 8.271 1.088 $2.10 10.04 1.7% 10.73 $142.808 *2,44 O 0.989: CI Slap; gip: TKDA; 03201 $1.057 6313 5.374 1.271 SOBS 12.10 80.03 1.6% *0.71 8142.879 $2,338 Dsy1g: CI Dim; gip: LoE ca 1; D0602 *1.058 8.347 $.381 5.281 1.088 $2.13 60.00 0214 80.03 *144,940 *272 Day*g: CI Dm; gtzg: LoE tint 1; 00602 51.063 $929 1.377 1281 1.088 12.12 $0.02 1.0% 10.14 8143,829 81,272 Day1g. CI Den; gig: LoE dr 19 VT; 01202 11.058 8.326 $377 1261 1.088 *2.11 80.03 13% $020 *143,290 81,927 . Day*g: CI Din; ghg: LoE tint N VT; 01302 11.057 11.318 1.376 1.281 8.088 $2.10 $0.04 1.8% 80.26 8142.84 $2,661 Dsyag: CI 052; 910g: MA: 03202 81.062 1314 8376 8261 1.088 $2.10 $0.04 1.71. 8025 8142,740 $2,477 13sy19: FT/PA Slap; 9tzg: LoE dr 1; D0503 $1.050 $345 $379 $273 sA88 *2.13 80.00 0214 1023 *144,192 *225 I Day19: FT/PA Step; 88x8: LoE tint 1; D0003 111.056 11.327 1375 1273 5.088 12.12 80.02 0.9% 11.36 *143,697 11,320 Dayl,9: FT/PA Step; gizg: LoE dr N VT; 01209 11.051 1.325 1.375 $273 6.088 52.11 80.03 13% 11.90 *143,373 11,644 Day1g: FT/PA Step; gip: LoE tint N VT; 131303 $1.050 *317 8.374 1273 1.088 *2.10 80.04 1.7% 12.57 8142.723 $2,414 Day*g: FT/PA Step; glzg: TKDA. 03203 11.055 5.313 6.374 1.274 1.088 12.10 10.04 1.7% 82.48 *142,809 $2,408 0e3119: FT/PA Dim; gig: LoE c11; 00804 *1.052 8345 8379 1.267 1.088 8213 $0.01 0.4% 80.19 8144,883 $614 - Dayttg: FT/PA Den; gig: LoE lint 1: 00904 *1.058 $327 1.376 6.266 1.088 $2.11 80.02 1.1% 80.57 6143.880 51,624 Daylig: FT/PA Dm; 909: LoE dr N VT; 01204 11.053 11325 11.375 8.266 1.088 *2.11 10.00 1.514 80.75 *143,068 12,149 9 Daytig: FT/PA Dm; glzg: LoE tint N VT; 01304 11.052 1317 *.374 1.267 5.088 62.10 $0.04 1.9% $0.97 *142,437 *2,780 Dayag: FT /PA Dim; 9129: TKDA; 03204 11.057 5.312 1.374 *267 8.48 82.70 80.04 1.9% 10.95 5142,619 *2,54 Dayti9: PCAP/TC Step; g(g: LoE eir 1; 00005 11.051 5345 1.378 1275 $.088 $2.14 80.00 0.1% 80.4 1146,106 1111 Dayllo PC/tP/TC Sep: 81x8: LoE ara 1; 0405 11.056 1.327 1375 1274 8.088 82.12 10.02 0.811, $0.91 1144,008 81,24 DayI9: PC/IP/TC Step; gig: LoE dr N VT; 01205 11.051 *325 8.375 *274 1.098 $2.11 80.03 12% $130 1143.485 11.729 Daft PC/IP/TC Sep; 91x8: LoE ant N VT; 01305 $1.050 $317 $.374 $275 1.088 $2.10 80.03 1.6% 11.78 $142,545 *2,372 Day8g: PC/IP/TC Sep; gig: TKDA; 03205 11.055 8313 1.374 8275 5.0138 82.10 80.03 1.6% 11.73 $142,012 82,306 Deft: PCAP /TC Dim; 9129: I.oE dr 1; 00606 11.052 11345 1379 $272 $.088 $2.14 80.00 0.1% $0.07 1145,012 $24 Dayll9: PCAP/TC Dim; gig: LoE ant 1; D0908 11.057 1327 $375 1272 8.088 $2.12 *0.02 0.9% 80.41 1143,914 *1,34 Day PC/IP/TC Om; gig: LoE c r N VT; 01206 11.052 8325 8275 1272 8.088 *2.11 $0.03 13% 80.58 1143,367 81,830 9 Der19: PC/IP /TC Dim; 81x9: LoE tet N VT; 01306 $1.051 *317 1.374 1272 8.018 12.10 *0.04 1.7% 10.79 1142,749 $2,469 Dayti9: PCAP/TC Den; gig; TKDA; 03206 81.056 1.313 $.374 1272 6.088 $2.10 $0.04 1.6% 80.76 $142,831 *2,386 Day1g: DN Sep: gig: LoE dr 1; D0607 51.051 1.337 8.378 8266 8.088 82.12 80.02 1.0% $0.54 8143.82* *1,389 Doyle DN Step; glzg: LoE ant 1; D0907 81.058 1.325 $.375 1266 1.48 82.11 80.03 12% 10.70 1143,414 S1,803 Daft: DN Step; gig: LoE dr N VT; 01207 11.053 1.323 1.374 1266 1.088 *2.10 50.03 1.6% 80.90 814,886 $2,329 Day$g: DN Step; glzg: LoE tint N VT; 01307 11.052 $.315 8.373 1268 1.088 $209 $0.04 2.1% $1.15 1142,231 *2,18* 0a319: DN Step; 9109: TKDA; 03207 11.057 1.311 1.373 *267 1.088 82.10 10.04 2.0% 11.12 $142,311 82.906 Wyttg: DN Dim: gig: LoE dr 1; D0608 81.053 8.335 S.376 8258 8.088 $2.11 80.03 13% 8036 8143936 *1,879 Daytg: ON 0en; 94x9: LoE tint 1; 00908 11.060 1.324 6.375 1258 8.088 $2.10 10.03 1.61. 10.45 1142,006 12,312 O 0%'69: DN Dim; 912g: LoE dr hi VT; 01208 *1.055 $.322 $374 $258 1.088 $210 $0.04 2.014 80.55 8142,378 82,839 Dayltg: DN Dim; gtzg: LoE tint N VT; 01308 11.054 1314 $.974 *258 5.088 82.09 $0.05 2.4% 80.87 11141,725 *3,492 . Dayhg: DN Den; 91 4 8 9: TKDA; 0321.059 6.310 1.373 8258 1.088 1209 80.05 2.41. 50.86 *141,603 13,414 Daytg: PO Sep; gig: LoE oil; 00609 11.050 $.345 $.378 8275 SOBS *2.14 80.00 0.1% 80.18 $146,137 *50 1 Day19: PO Step; gig: LoE tint 1; 00909 11.056 6.327 6.375 8.275 SOBS $2.12 80.02 0.8% 12.59 1144,34 81.183 Daytt9: PO Step; gig: LoE dr N VT; 01209 $1.051 1.325 $.375 5275 $.088 82.11 80.03 12% 13.74 $143,611 *1,706 Day0g: PO Step; gig: LoE tint N VT; D1909 11.050 1317 8.374 1275 1.088 $2.10 80.03 1.6% $5.17 8142,357 $2,360 0 .9 8 9: PO Step; 9(ig: TKDA; 03209 11.055 1.313 5.374 1276 6.088 1210 80.06 1.614 $4.98 1142,165 82,262 Dayitg: PO Dm; 9409: LOE e1 1; 00610 11.050 1345 5.379 $274 1.088 $2.13 80.00 02% 8024 1144,916 $222 Daft PO Dim; gig: LoE tint 1; 00010 11.055 5.327 1.375 8274 1.088 $2.12 80.02 0.014 11.45 1143,898 11,319 . Dayfg: PO Dim; gig: LoE dr N VT; D1210 11.050 1325 5.375 8274 5.48 *2.11 80.03 1.3% 82.01 1143,357 61,830 Dsy69: PO Dim; gip: LoE tint N VT; 01310 11.050 $316 1.374 $274 1.088 $2.10 80.04 1.7% 12.73 $142.725 $2.482 Dsylie. PO Dom; gig: MDA. 03210 11.054 1313 $.374 1274 1.088 _ 82.10 50.04 1.7% 12.65 $142,800 82,417 1 1 1 1 1 ECC_IStrategyReport doc THEWEIDTGROUP Page 30 9 Energy Assets 650 Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 Eagan Community Center Appendix B , Energy Costs Page 2 of 10 67,917 SOFT. , Itemized Costs Totas per bldg s0. ft Totals for Building 1 • ti I.1 # . Straegy u. 6 if ul Code Base; CODE1 $1.050 8.345 *976 4.277 $.068 32.14 5146,217 R30 rod Yu441.n; ER3W 1 61.044 8.339 5976 $277 $.066 $2.12 $0.02 0.7% *0.06 8144,196 81.022 li R-16 wall Insulation : ER2W2 81.026 5938 $976 8.277 8.068 92.10 *0.03 1.6% 50.09 $142,936 52.279 R.20 well Medallion; ER2W3 81.016 8338 8.376 8.277 8.088 $2.09 $0.04 2.1% 80.12 $142,223 $2,994 Private 01flbe coap. sensor correct LCPO1 51.046 5342 8.379 8.272 5.086 $2.13 $0.01 0.516 $026 8144,645 8669 Private Office duel level switching; LCP02 81.048 4.344 6.379 1.275 5.068 $2.13 80.00 02% 80.13 5144,876 $339 Sewage /Small Rsslroom Occupancy sensor LCST1 61.062 1948 5.362 1.257 8.088 $2.14 80.00 0.1% $0.02 *146,007 $120 Circulation manual dfmmila LCCI3 81.056 8.347 8.380 8.268 8.088 $2.14 80.00 0.0% 80.00 5145.189 825 0ynnaV n melees' switching; LCGY2 81.056 8.346 8.360 4.256 5.068 82.12 50.01 0.6% *0.05 6144909 $906 Conmu01y Room dual level swathing; LC0N2 *1.052 8.345 $979 8271 9.088 $2.13 80.00 02% 50.04 5144,920 8297 Comm* Room manual dimming; LC0143 51.053 71.344 8.379 8.267 8.068 82.13 80.01 0.3% $0.07 $144,717 8600 -. F9neu Caidlo dual lavat swttcNrg; LCFT2 81.051 1.345 4379 1.273 $.098 62.14 80.00 0.1% $0.03 5145.000 5137 Party/Craft dual level switching LCPC2 81.051 5345 8.379 8276 2.068 82.14 80.00 0.0% 80.01 $145,196 521 Teen Girder manual dimming; LCTC3 81.050 5345 8.378 2.276 8.068 82.14 80.00 0.0% 80.02 $145,190 837 Indoor Plsyrea duel Nvsl switching; LCIP2 61.051 3345 $979 6275 8.088 $2.14 50.00 0.0% 80.01 $146,196 521 Per9Aerobb duel level swlcNng; LCPA2 81.051 5.346 8.379 8274 toes 62.14 80.00 0.0% 80.01 8145,196 521 Private office direct system at 70 fc; LDPOI 81.051 8.346 8.375 5277 8.068 $2.14 ($0.00) -0.1% ($0.04) 8146.331 (8114) Prhete odic* direct system at 501c; LDP02 81.048 5.344 8.379 8274 8.088 82.13 $0.01 0.3% $0.14 8144,47 3370 Private afro, In*rect system at 50 fc ; LDP03 61.051 5.348 5978 8277 5.088 $214 (30.00) 41.1% (50.04) 8145,331 (5114) PO Ta5WAmbler4 30 lc ambient; 0.3 W/0 Task; LDPO4 51.050 6.343 8.379 11.272 8.068 82.13 80.01 0.3% 80.16 $144,796 8422 PO *466 di, 85% relict ailing. 45 fa, LDP05 81.050 $.343 8.379 8273 8.088 82.13 $0.01 0.3% 80.15 8144318 8399 Gym 10% better Than code; LDGY1 81.052 8.345 11.379 $270 3.068 $2.13 80.00 0216 80.02 5144309 8309 Gym 15% better than code; LDGY2 31.053 5945 4.379 8266 8.088 5213 80.01 0.3% 80.02 8144,756 5482 Gym 20% better than code; LDGY3 81.054 $.346 5979 5263 8.088 32.13 80.01 0.4% 50.03 $144,901 9616 F9ness/Cardio 10% better than code; LDFT1 81.051 8345 3.379 8274 5.068 $2.14 50.00 0.1% $0.02 8145,122 295 F8neWCardb 20% better than code; LDFT2 81.052 8.345 3.379 5272 8.068 82.14 80.00 0.1% 80.04 8145,032 8185 Pert/Aerobic 10% tatter than code; LDPA1 81.051 1.346 5.379 8275 5.088 82.14 80.00 0.0% 20.01 8146 ,202 515 Per/Aerobic 20% better than code; LDPA2 81.052 5346 3279 8274 8.088 22.14 80.00 0.0% 30.01 $145,189 828 Teen Center 9% better than coda; LDTC1 31.050 8.345 6.378 8.276 5.088 22.14 80.00 0.0% 30.01 8145,198 819 Teen Center 20% better than code; LDTC2 91.050 5945 5375 5276 8.088 82.14 50.00 0.0% 50.01 8145,196 $31 Pady1Cw111015 better than code; LDPC1 81.051 8.345 5.378 8276 5.088 82.14 80.00 0.0% 80.00 8145 .203 814 4 Party/Craft 21% better Ban code; LDPC2 51.051 $345 8.379 8275 5.068 22.14 50.00 0.0% 80.01 8146,191 828 Indoor Playeres 10% better can code: LDIPI 81.051 5945 8.378 8276 2.088 52.14 80.00 0.0% 80.00 8146303 814 Indoor Mayans' 20% better than code; LDIP2 81.051 5.345 8.379 8275 3.068 2214 80.00 0.0% 80.01 8146,199 828 Chiller, 5% deer KW/ton, alt cooled; MCH01 51.050 5323 2372 8.277 6.088 2211 $0.03 13% *0.03 8143,271 81,946 0581.0,13% deer KW/ton, air cooled; MCH02 51.050 8288 2.362 8277 8.088 8296 50.07 3.5% 50.07 8140,167 85,060 Chiller, 18% deer KWAoo. alr cooled; MCH03 51.050 5266 8955 8277 5.088 82.04 S0.10 4.8% $0.10 5138,211 37,006 Cheer, 0% deer KWAon, yr cooled; MCH07 51.048 5210 5908 5277 5.088 81.53 8021 9.7% 8021 9131,159 514,058 0N900, 10% deb KWAon, wtr co01ed; MCH04 51.048 8.189 5.301 5277 5.088 8190 5024 11.1% 5024 5129.161 816,056 Chiller, 20% dacr KWAon, Mr cooled; MCH05 51.048 8.168 8292 6277 5.088 8137 8027 12.4% $027 8127,164 816,053 Chiller, 30% do, KW/Ion, vAr cooled; MC1406 31.043 $.147 8283 2.277 4.088 2134 20.30 13.8% 80.30 8125,157 440,050 4 Gas boiler 83% efsc; MHTO1 91.009 5.345 $978 $.277 5.068 *2.10 $0.04 1.9% 80.04 8142,404 $2,813 Gas boiler w/aaWersing techrobgy; 1654703 5.658 2.345 9.376 8277 8.068 *1.75 20.39 18.3% 80.39 *116,614 S26.603 Premium elf supply /realm fan motors; 594703 81.052 8345 5.372 2.277 8.088 $2.13 80.00 02% 80.00 8144,906 8312 Premium eff pump motors; MMT04 51.050 8.345 8.377 $277 9.068 52.14 50.00 0.1% 80.00 8145,110 5107 VSO's on supply air fans; 1.41.1102 81.071 5346 8.322 8.277 S.068 $210 80.03 1.8% 50.03 8142363 $2,354 VSD on hill pump; 51103 51.052 $349 8.362 8277 5.068 82.13 30.01 0.5% 80.01 $144310 8707 VSO on clg pump; 56.204 81.050 2.342 3.356 8277 8088 $2.11 50.03 12% 50.03 *143,494 51.723 CO2 control of outside air. MOA02 8.574 3248 8.327 5.277 8.088 8131 80.62 292% $0.62 8102,781 842,436 Sesble Heat Recovery, M141051 8.624 5949 6.375 3.277 5.088 8121 80.43 1992. 50.43 5115 ,275 228,942 Total Heal Recovery, 1.464071 8.624 8243 3.333 3.277 5.088 81.56 80.57 28.915 $0.57 6106 .216 $39.001 4 4 • 4 4 4 4 4 ECC_1StrategyReport.doc THEWEIDTGROUP Page 31 4 4 S Energy Assets sM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 • 67,000 sq. ft. 7026.81 ® Eagan Community Center Appendix B Annual Energy by End Use Page 3 of 10 67,917 S0.FT. Itemized KBtu/sf Totals 0 . Strategy = a ' n vi ae co Code Base: CODE1 130.2 18.7 20.5 15.0 4.7 189.01 17.5 8.8 Lo E tint 1/ alum frame; W0901 130.9 17.7 20.3 15.0 4.7 188.62 0% 17.1 8.6 2.7% Lo E dear hl VT/ alum frame; W1201 130.3 17.6 20.3 15.0 4.7 187.83 1% 17.1 8.6 3.0% Lo E tint hi VT/ alum frame; W1301 130.1 172 20.2 15.0 4.7 18724 1% 17.0 8.5 4.0% . TKDA Cost Base Glass; W3201 130.8 16.9 20.2 15.0 4.7 187.65 1% 16.9 8.4 4.4% Dayltg: CI Step; glzg: LoE clr 1; 00601 130.5 18.7 20.5 14.6 4.7 188.99 0% 17.4 8.8 0.1% Dayltg: CI Step; glzg: LoE tint 1; D0901 131.2 17.7 20.3 14.6 4.7 188.57 0% 17.0 8.6 2.8% Dayltg: Cl Step; glzg: LoE clr hi VT; D1201 130.5 17.6 20.3 14.6 4.7 187.78 1% 17.0 8.5 3.2% Dayltg: CI Step; glzg: LoE tint hi VT; D1301 130.5 172 20.2 14.6 4.7 18721 1% 16.9 8.5 42% , Dayttg: CI Step; glzg: TKDA; D3201 131.1 16.9 202 14.6 4.7 187.62 1% 16.8 8.4 4.6% Dayltg: CI Dim; 9129: LoE dr 1; 00602 1312 18.6 20.5 14.0 4.7 189.02 0% 172 8.8 0.3% Dayltg: CI Dim; glzg: LoE tint 1; 00902 131.8 17.7 20.3 14.0 4.7 188.60 0% 16.9 8.6 3.0% Dayltg: CI Dim; glzg: LoE dr hi VT; 01202 131.2 17.6 20.3 14.0 4.7 187.79 1% 16.8 8.5 3.3% Dayltg: CI Dim; glzg: LoE tint hi VT; 01302 131.1 17.1 202 14.0 4.7 18724 1% 16.7 8.4 4.3% . Dayltg: CI Dim; glzg: TKDA; D3202 131.7 16.9 20.2 14.1 4.7 187.66 1% 16.6 8.4 4.8% Dayttg: FT /PA Step; 9129: LoE clr 1; 00603 130.2 18.6 20.4 14.8 4.7 188.82 0% 17.4 8.8 0.2% Dayltg: FT/PA Step; glzg: LoE tint 1; 00903 130.9 17.7 20.3 14.8 4.7 188.45 0% 17.1 8.6 2.9% , Dayltg: FT/PA Step; glzg: LoE dr hi VT; D1203 130.3 17.6 20.3 14.8 4.7 187.67 1% 17.0 8.5 3.2% Dayttg: FT/PA Step; 9129: LoE tint hi VT; 01303 130.2 17.1 20.2 14.8 4.7 187.08 1% 16.9 8.5 4.2% Dayltg: FT/PA Step; 9129: TKDA; 03203 130.8 16.9 202 14.8 4.7 187.52 1% 16.8 8.4 5% Dayltg: FT/PA Dim; 9129: LoE dr 1; 00604 130.4 18.6 20.4 14.4 4.7 188.57 0% 17.3 8.8 0% Dayltg: FT/PA Dim; 9129: LoE tint 1; D0904 131.1 17.7 20.3 14.4 4.7 18824 0% 17.0 8.5 3% Dayltg: FT/PA Dim; glzg: LoE clr hi VT; D1204 130.5 17.5 20.3 14.4 4.7 187.46 1% 16.9 8.5 4% Dayltg: FT/PA Dim; glzg: LoE tint hi VT; 01304 . 130.4 17.1 20.2 14.4 4.7 186.91 1% 16.8 8.4 5% Dayltg: FT/PA Dim; glzg: TKDA; 03204 131.1 16.9 20.2 14.4 4.7 187.33 1% 16.7 8.4 5% IP Dayltg: PC/IP/TC Step; glzg: LoE clr 1; D0605 130.3 18.6 20.4 14.9 4.7 188.94 0% 17.4 8.8 0% Dayltg: PC/IP/TC Step; 9129: LoE tint 1; 00905 130.9 17.7 20.3 14.9 4.7 188.54 0% 17.1 8.6 3% Dayltg: PC/IP/TC Step; 9129: LoE dr hi VT; 01205 130.3 17.6 20.3 14.9 4.7 187.76 1% 17.1 8.5 3% . Dayltg: PC/IP/TC Step; 9129: LoE tint hi VT; 01305 1302 172 20.2 14.9 4.7 187.18 1% 16.9 8.5 4% Dayltg: PC /IP/TC Step; glzg: TKDA; D3205 130.8 16.9 20.2 14.9 4.7 187.58 1% 16.9 8.4 5% ID Dayltg: PC/IP/TC Dim; glzg: LoE clr 1; 00606 130.4 18.6 20.4 14.7 4.7 . 188.89 0% 17.4 8.8 0% Dayltg: PC/IP/TC Dim; 9129: LoE tint 1; 00906 131.0 17.7 20.3 14.7 4.7 188.48 0% 17.1 8.6 3% Dayltg: PC /IP/TC Dim; 9129: LoE clr hi VT; 01206 130.4 17.6 20.3 14.7 4.7 187.69 1% 17.0 8.5 3% , Dayltg: PC/IP/TC Dim; glzg: LoE tint hi VT; 01306 130.3 17.1 20.2 14.7 4.7 187.13 1% 16.9 8.4 4% Dayltg: PC /IP/TC Dim; 9129: TKDA; 03206 130.9 16.9 20.2 14.7 4.7 187.54 1% 16.8 8.4 5% Dayltg: DN Step; 9129: LoE dr 1; D0607 130.3 182 20.4 14.4 4.7 188.06 1% 17.1 8.7 2% . Dayltg: DN Step; 9129: LoE tint 1; D0907 131.1 17.6 20.3 14.4 4.7 188.19 0% 16.9 8.5 4% Dayltg: DN Step; 9129: LoE dr hi VT; 01207 130.5 17.5 20.3 14.4 4.7 187.40 1% 16.9 8.5 4% . Dayltg: DN Step; glzg: LoE tint hi VT; 01307 130.4 17.1 20.2 14.4 4.7 186.80 1% 16.8 8.4 5% Dayltg: DN Step; gizg: TKDA; 03207 131.0 16.8 20.2 14.4 4.7 18723 1% 16.7 8.3 5% Dayttg: DN Dim; glzg: LoE clr 1; D0608 130.6 18.1 20.4 13.9 4.7 187.75 1% 17.0 8.6 3% . Dayttg: DN Dim; glzg: LoE tint 1; 00908 131.4 17.5 20.3 13.9 4.7 187.85 1% 16.8 8.4 4% Dayltg: DN Dim; glzg: LoE dr hi VT; D1208 130.8 17.4 202 13.9 4.7 187.06 1% 16.7 8.4 5 % Dayttg: DN Dim; glzg: LoE tint hi VT; 01308 130.7 16.9 202 13.9 4.7 186.47 1% 16.6 8.3 8% 11, Dayttg: DN Dim; gizg: TKDA; D3208 131.3 18.7 20.2 14.0 4.7 186.89 1% 16.5 8.3 6% Dayltg: PO Step; glzg: LoE dr 1; D0609 1302 18.6 20.5 14.9 4.7 188.94 0% 17.4 8.8 0% II Dayltg: PO Step; gtzg: LoE tint 1; 00909 130.9 17.7 20.3 14.9 4.7 188.54 0% 17.1 8.6 3% Dayltg: PO Step; gizg: LoE dr hi VT; 01209 130.3 17.6 20.3 14.9 4.7 187.76 1% 17.1 8.6 3% Dayltg: PO Step; 912g: LoE tint hi VT; D1309 1302 17.1 20.2 14.9 4.7 187.16 1% 16.9 8.5 4% • Dayltg: PO Step; glzg: TKDA; 03209 130.8 16.9 20.2 14.9 4.7 187.59 1% 16.9 8.4 4% Dayltg: PO Dim; 9129: LoE dr 1; 00610 130.2 18.6 20.4 14.8 4.7 188.74 0% 17.4 8.8 0% Dayltg: PO Dim; glzg: LoE tint 1; 00910 130.9 17.7 20.3 14.8 4.7 188.36 0% 17.1 8.6 3% S Dayltg: PO Dim; 9tzg: LoE dr hi VT; D1210 130.2 17.6 20.3 14.8 4.7 187.60 1% 17.0 8.6 3% Dayttg: PO Dim; gizg: LoE tint hl VT; D1310 130.1 17.1 202 14.8 4.7 186.99 1% 16.9 8.5 4% D Dayttg: PO Dim; Qlzg: TKDA; D3210 130.7 16.9 20.2 14.8 4.7 187.39 1% 16.8 8.4 5% 0 . ECC_1StrategyReport.doc THEWEIDTGROUP Page 32 I s Energy Assets SM Custom Consulting Xcel Energy Strategy Report ilk . Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. - 7026.81 A Eagan Community Center Appendix B , Annual Energy by End Use Page 4 of 10 67,917 SQ.FT. itemized KBtu/sf Totals 1 4 Strategy w m f Code Base; CODE1 130.2 18.7 20.5 15.0 4.7 189.01 17.5 8.8 R•30 roof insulation; ER3W 1 129.4 18.4 20.4 15.0 4.7 187.90 1% 17.4 8.8 1% R -16 wall insulation ; ER2W2 1272 18.3 20.4 15.0 4.7 185.67 2% 17.3 8.7 1% R -20 wall Insulation; ER2W3 126.0 18.3 20.4 15.0 4.7 184.40 2% 17.3 8.7 1% Private Office occup. sensor control; LCPO1 130.0 18.4 20.3 14.6 4.7 188.00 1% 172 8.8 0% , Private Office dual level switching; LCPO2 130.0 18.5 20.4 14.8 4.7 188.48 0% 17.4 8.8 0% Storage /Small Restroom Occupancy sensor, LCST1 131.6 18.7 20.5 13.8 4.7 189.27 0% 17.1 8.8 0% Circulation manual dimming; LCCI3 130.9 18.7 20.5 14.4 4.7 189.17 0% 17.3 8.8 0% t Gymnasium multilevel switching; LCGY2 130.9 18.6 20.4 13.8 4.7 188.49 0% 17.1 8.7 2% Community Room dual level switching; LCDN2 130.4 18.6 20.4 14.6 4.7 188.82 0% 17.3 8.8 0% Community Room manual dimming; LCDN3 130.6 18.6 20.4 14.4 4.7 188.69 0% 17.3 8.8 1% III Fitness/Cardio dual level switching; LCFT2 130.4 18.6 20.5 14.7 4.7 188.93 0% 17.4 8.8 0% Parry /Craft dual level switching; LCPC2 130.3 18.7 20.5 14.9 4.7 189.02 0% 17.4 8.8 0% Teen Center manual dimming; LCTC3 130.2 18.7 20.5 14.9 4.7 189.00 0% 17.4 8.8 0% Indoor Playarea dual level switching; LCIP2 130.3 18.7 20.5 14.9 4.7 189.02 0% 17.4 8.8 0% Ped /Aerobic dual level switching; LCPA2 130.4 18.7 20.5 14.8 4.7 189.04 0% 17.4 8.8 0% t Private office direct system at 701c; LDP01 130.3 18.7 20.5 15.0 4.7 189.20 0% 17.5 8.8 0% Private office direct system at 50 lc; LDP02 130.0 18.5 20.4 14.8 4.7 188.43 0% 17.4 8.8 0% Private office Indirect system at 50 fc ; LDP03 130.3 18.7 20.5 15.0 4.7 189.20 0% 17.5 8.8 0% PO Task/Ambient 30 is ambient; 0.3 W /st Task.; LDPO4 130.2 18.4 20.4 14.7 4.7 188.42 0% 17.3 8.8 0% PO directlindir, 85% reflct ceiling, 45 fc; LDPO5 130.1 18.5 20.4 14.7 4.7 188.43 0% 17.3 8.8 0% , Gym 10% better than code; LDGY1 130.4 18.6 20.4 14.6 4.7 188.83 0% 17.3 8.8 1% Gym 15% better than code; LDGY2 130.6 18.6 20.4 14.4 4.7 188.74 0% 17.3 8.8 1% Gym 20% better than code; LDGY3 130.7 18.6 20.4 142 4.7 188.65 0% 172 8.7 1% t Fitness/Cardio 10% better than code; LDFTI 130.3 18.7 20.5 14.8 4.7 188.95 0% 17.4 8.8 0% Fitness/Cardio 20% better than code; LDFT2 130.4 18.6 20.4 14.7 4.7 188.89 0% 17.4 8.8 0% , Perf /Aerobic 10% better than code; LDPA1 130.3 18.7 20.5 14.9 4.7 189.03 0% 17.4 8.8 0% Pert/Aerobic 20% better than code; LDPA2 130.4 18.7 20.5 14.8 4.7 189.05 0% 17.4 8.8 0% Teen Center 9% better than code; LDTC1 130.2 18.7 20.5 14.9 4.7 189.00 0% 17.5 8.8 0% Teen Center 20% better than code; LDTC2 130.2 18.7 20.5 14.9 4.7 189.00 0% 17.4 8.8 0% Party /Craft 10% better than code; LDPC1 130.2 18.7 20.5 14.9 4.7 189.01 0% 17.4 8.8 0% Party /Craft 21% better than code; LDPC2 130.3 18.7 20.5 14.9 4.7 189.02 0% 17.4 8.8 0% , Indoor Playarea 10% better than code; LDIP1 130.3 18.7 20.5 14.9 4.7 189.02 0% 17.4 8.8 0% Indoor Playarea 20% better than code; LDIP2 130.3 18.7 20.5 14.8 4.7 189.02 0% 17.4 8.8 0% Chiller, 5% decr KW/ton, air cooled; MCH01 130.2 17.7 20.5 15.0 4.7 188.08 0% 172 8.5 4% Chiller, 13% decr KW/ton, air cooled; MCH02 1302 162 20.5 15.0 4.7 186.60 1% 16.8 7.9 10% Chiller, 18% deer KW/ton, air cooled; MCH03 130.2 15.3 20.5 15.0 4.7 185.66 2% 16.5 7.6 14% Chiller, 0% decr KW/ton, wtr cooled; MCH07 130.2 13.9 20.5 15.0 4.7 184.27 3% 16.1 5.6 36% Chiller, 10% decr KW/ton, wtr cooled; MCH04 130.2 12.8 20.5 15.0 4.7 183.17 3% 15.7 5.3 40% Chiller, 20% deer KW/ton, wtr cooled; MCI-105 130.2 11.7 20.5 15.0 4.7 182.08 4% 15.4 4.9 44% t Chiller, 30% decr KW/ton, wlr cooled; MCI-106 130.2 10.6 20.5 15.0 4.7 180.98 4% 15.1 4.6 48% Gas boiler 83% effic; MHT01 125.0 18.7 20.5 15.0 4.7 183.84 3% 17.5 8.8 0% Gas boiler w /condensing technology; MHT03 812 18.7 20.5 15.0 4.7 140.05 26% 17.5 8.8 0% Premium et( supply /return fan motors; MMT03 130.5 18.6 20.0 15.0 4.7 188.80 0% 17.3 8.8 0% Premium eft pump motors; MMT04 1302 18.7 20.3 15.0 4.7 188.91 0% 17.4 8.8 0% VSD's on supply air fans; MLRO2 132.8 17.9 16.7 15.0 4.7 187.14 1% 162 8.6 2% VSD on htg pump; MLRO3 130.5 18.7 19.4 15.0 4.7 188.22 0% 172 8.8 0% VSD on clg pump; MLRO4 1302 18.1 18.8 15.0 4.7 186.80 1% 16.8 8.8 0% CO2 control of outside air, MOA02 712 14.3 18.9 15.0 4.7 124.13 34% 15.6 7.0 20% Sensible Heat Recovery; MHRS1 77.4 18.8 20.3 15.0 4.7 136.17 28% 17.4 8.8 0% Total Heat Recovery; MHRT1 77.4 14.4 19.7 15.0 4.7 131.21 31% 15.9 7.0 21% 4 4 4 ECC_iStrategyReport.doc THEWEIDTGROUP Page 33 4 4 or a Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 • 67,000 sq. ft. 7026.81 • Eagan Community Center Appendix B Peak Conditions Page 5 of 10 • 67,917 SO.FT. Peak Electric Cooling Heating • is I � * • i 0 it. H it I 11 Code Base; CODE1 8 .8 599 243 280 3,573 Lo Etint 1 /alum frame; W0901 8.6 584 16 3% 0.00 248 274 8 2.1% 3.576 (4) -0.1% • Lo E dear hl VT/ alum frame; W1201 8.6 581 18 3% 0.00 249 273 7 2.4% 3,565 7 02% Lo E tint hi VT/ alum frame; W1301 8.5 575 24 4% 0.00 251 271 9 3.2% 3,567 6 02% . TKDA Cost Base Glass; W3201 8.4 573 27 4% 0.00 251 270 10 3.5% 3.579 (6) -02% Dayltg: CI Step; 9129: LoE dr 1; D0601 8.8 599 1 0% 0.00 243 280 0 0.0% 3.574 (1) 0.0% Dayttg: CI Step; 9129: LoE tint 1; D0901 8.6 583 17 3% 0.01 248 274 6 2.1% 3,577 (4) -0.1% • Dayltg: CI Step; glzg: LoE dr hi VT; 01201 8.5 581 19 3% 0.01 249 273 7 2.4% 3,566 6 02% Dayttg: CI Step; 9129: LoE tint hl VT; D1301 8.5 575 25 4% 0.01 251 271 9 3.2% 3,567 5 0.1% Dayttg: CI Step; glzg: TKDA; D3201 8.4 572 27 6% 0.01 251 270 10 3.5% 3479 (6) -02% Dayltg: CI Dim; glzg: LoE dr 1; D0602 8.8 598 2 0% 0.00 243 280 0 0.0% 3.576 (4) -0.1% Dayltg: CI Dim; 9129: LoE tint 1; 00902 8.8 582 18 3% 0.00 248 274 6 2.2% 3,579 (7) -02% Dayttg: CI Dim; 9129: LoE dr hi VT; 01202 8.5 579 20 3% 0.00 249 273 7 2.5% 3,569 4 0.1% • Dayttg: CI Dim; 9129: LoE tint hi VT; D1302 8.4 573 26 4% 0.00 251 271 9 3.2% 3,570 3 0.1% Dayttg: CI Dim; 9 zg: TKDA; D3202 8.4 571 29 5% 0.00 251 270 10 3.5% 3,581 (9) -02% Dayttg: FT/PA Step; 91zg: LoE dr 1: 00603 8.8 598 1 016 0.00 243 279 0 0.1% 3.573 (0) 0.0% • Dayttg: FT/PA Step; 9129: LoE tint 1; D0903 8.6 582 17 3% 0.02 248 274 6 2.3% 3,576 (4) -0.1% Dayttg: FT/PA Step; 9129: LoE dr hi VT; 01203 8.5 580 19 3% 0.02 249 273 7 2.6% 3.566 7 02% Dayttg: FT/PA Step; 9129: LoE tint hI VT; 01303 8.5 574 25 4% 0.03 251 271 9 3.3% 3.587 5 02% . Dayltg: FT /PA Step; glz9: TKDA; 03203 8.4 572 28 5% 0.03 252 270 10 3.6% 3,579 (6) -02% Dayltg: FT/PA Dim; 9129: LoE dr 1; D0604 8.8 597 3 0% 0.00 243 279 1 0.314 3,574 (2) -0.1% . Dayttg: FT/PA Dim; 9129: LoE tint 1; 00904 8.5 581 19 396 0.01 249 273 7 2.4% 3.578 (5) -0.1% Dayttg: FT /PA Dim; 9129: LoE dr hl VT; 01204 8.5 578 21 4% 0.01 250 272 8 2.8% 3.567 5 0.1% Dayttg: FT/PA Dim; 9129: LoE tint hi VT; 01304 8.4 572 27 5% 0.01 252 270 10 3.5% 3,569 4 0.1% • Dayttg: FT/PA Dim; 9129: TKDA; 03204 8.4 570 30 5% 0.01 252 269 11 3.8% 3.580 (8) -02% Dayttg: PCAP/TC Step; 9129: LoE dr 1; 00605 8.8 598 1 096 0.00 243 280 0 0.094 3,574 (1) 0.0% Dayttg: PCAP/TC Step; 9129: LoE tint 1; 00905 8.6 583 17 314 0.01 248 274 6 2.1% 3.577 (4) -0.1% Dayttg: PCAP/TC Step; 9129: LoE dr hi VT; 01205 8.5 580 19 396 0.01 249 273 7 2.5% 3.566 6 02% Dayltg: PCAP/TC Step; 9129: LoE tint hi VT; 01305 8.5 574 25 4% 0.02 251 271 9 3.2% 3,567 5 0.1% Dayttg: PCAP/TC Step; 9129: TKDA; 03205 8.4 572 28 5% 0.02 251 270 10 3.5% 3.579 (6) -0.2% Dayttg: PCAP/TC Dim; 9129: LoE dr 1; 00606 8.8 598 2 0% 0.00 243 280 0 0.0% 3,574 (1) 0.0% DayItg: PCAP/TC Dim; glzg: LoE tint 1; D0906 8.6 582 18 3% 0.01 248 274 6 2296 3,577 (5) -0.1% Dayttg: PC/IP/TC Dim; 9129: LoE dr hi VT; 01206 8.5 580 20 3% 0.01 249 273 7 2.5% 3.567 6 02% Dayttg: PCAP/TC Dim; gtzg: LoE tint hi VT; 01308 8.4 574 26 4% 0.01 251 271 9 3.2% 3,568 5 0.1% Dayttg: PC/IP/TC Dim; 9129: TKDA; 03206 8.4 571 28 5% 0.01 251 270 10 3.5% 3,579 (7) -0.2% • Dayttg: DN Step; 9129: LoE dr 1; D0607 8.7 589 11 296 0.00 247 275 5 1.7% 3,573 (0) 0.0% Daytg: DN Step; 9129: LoE tint 1; 00907 8.5 577 22 4% 0.01 249 273 7 2.4% 3,576 (4) -0.1% Dayttg: DN Step; 9129: LoE dr hl VT; D1207 8.5 575 25 4% 0.01 250 272 8 2.7% 3,566 7 0296 Dayttg: DN Step; 9129: LoE tint hi VT; D1307 8.4 669 30 5% 0.01 252 270 10 3.5% 3,567 5 0.2% Dayltg: DN Step; 9129: TKDA; 03207 8.3 587 33 5% 0.01 252 269 11 3.8% 3,579 (6) -02% Dayttg: DN Dim; 9129: LoE dr 1; D0608 8.6 584 15 3% 0.00 247 275 5 1.9% 3,574 (1) 0.0% • Dayltg: DN Dim; 9129: LoE tint 1; D0908 8.4 573 27 4% 0.01 249 272 7 2.7% 3.577 (5) -0.1% Dayttg: DN Dim; glzg: LoE dr hi VT; 01208 8.4 571 29 5% 0.01 250 272 8 3.0% 3.567 6 0.2% Dayttg: DN Dim; 9129: LoE tint hi VT; 01308 8.3 565 35 8% 0.01 252 269 11 3.8% 3,568 5 0.1% • Dayttg: DN Dim; 9129: TKDA; D3208 8.3 562 37 6% 0.01 253 269 11 4.0% 3,580 (7) -02% Dayttg: PO Step; 9129: LoE dr 1; D0609 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (0) 0.096 • Dayttg: PO Step; 9129: LoE tint 1; 00909 8.6 683 18 3% 0.04 248 274 6 2.1% 3,578 (4) -0.1% Dayttg: PO Step; glzg: LoE dr hi VT; 01209 8.6 681 19 396 0.04 249 273 7 2.4% 3.586 7 02% Dayltg: PO Step; 9129: LoE tint hi VT; 01309 8.5 575 24 4% 0.05 251 271 9 3.2% 3,567 6 02% . Dayttg: PO Step; 9129: TKDA; D3209 8.4 573 27 4% 0.08 251 270 10 3.5% 3,579 (6) -02% Dayttg: PO Dim; 9129: LoE dr 1; D0610 8.8 699 1 0% 0.00 243 280 0 0.096 3,573 (0) 0.0% Dayttg: PO Dim; gin: LoE tint 1; D0910 8.6 583 17 3% 0.02 248 274 6 2.1% 3577 (4) -0.1% Dayttg: PO Dim; g129: LoE dr hi VT; 01210 8.6 581 19 396 0.02 249 273 7 2.4% 3.566 7 02% Dayttg: PO Dim; 9129: LoE tint hi VT; D1310 8.5 575 25 4% 0.03 251 271 9 3.216 3,567 5 0.1% Dayttg: PO Dim; gtzg: TKDA; D3210 8.4 572 27 5% 0.03 251 270 10 3.5% 3.579 (6) -02% • ECC_1SnategyReport.doc T,mWEIDTGROUP Page 34 • - Energy Assets SM Custom Consulting Xcel Energy Strategy Report f Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 4 Eagan Community Center Appendix B 4 Peak Conditions Page 6 of 10 67.917 SO.FT. 4 Peak Electric Cooling Heating % _ at 3e 4 A 11 II I Code Base; CODE1 8.8 599 243 280 3,573 R -30 roof Insulation; ER3W 1 8.8 595 5 1% 0.00 246 278 4 1.4% 3,558 15 0.4% R -16 waft insulation ; ER2W2 8.7 594 6 1% 0.00 247 276 4 1.6% 9.514 58 1.6% R-20 waJl Insulation ER2W3 8.7 593 6 1% 0.00 247 275 5 1.6% 3,488 85 2.4% Private Office occup. sensor control; LCP01 8.8 599 1 0% 0.00 243 280 0 0.0% 3,576 (4) -0.1% 4 Private Office dual level switching; LCPO2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,674 (1) 0.0% Storage /Small Restroom Occupancy sensor, LCST1 8.8 597 2 0% 0.00 243 280 0 0.0% 3,584 (11) -0.3% Circulation manual dimming; LCCI3 8.8 599 1 0% 0.00 243 280 0 0.0% 3,579 (7) -0.2% 4 Gymnasium multilevel switching; LCGY2 8.7 590 9 2% 0.00 243 279 1 0.2% 3,579 (6) -0.2% Community Room dual level switching; LCDN2 8.8 597 3 0% 0.00 243 279 0 0.1% 3,574 (1) 0.0% 4 Community Room manual rimming; LCDN3 8.8 595 4 1% 0.00 243 279 1 0.2% 3,575 (2) -0.1% Fitness/Cardio dual level switching; LCFT2 8.8 599 1 0% 0.00 243 280 0 0.1% 3,576 (3) -0.1% Party /Craft dual level switching; LCPC2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (1) 0.0% Teen Center manual dimming; LCTC3 8.8 599 1 0% 0.00 243 280 0 0.0% 3,573 (0) 0.0% Indoor Pleyarea dual level switching; LCIP2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,574 (1) 0.0% Perf/Aerobic dual level switching; LCPA2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,574 (2) 0.0% Private office direct system at 70 lc; LDPO1 8.8 599 0 0% 0.00 243 280 (0) 0.0% 3,572 0 0.0% Private office direct system at 50 fc; LOP02 8.8 599 0 0% 0.00 243 280 0 0.0% 3,574 (1) 0.0% Private office Indirect system at 50 fc ; LDPO3 8.8 599 0 0% 0.00 243 280 (0) 0.0% 3,572 0 0.0% 4 PO Task/Ambient 30 lc ambient; 0.3 W /sf Task.; LDPO4 8.8 599 1 0% 0.00 243 280 0 0.0% 3,575 (3) -0.1% PO directAndir, 85% refit ceiling, 4511, LDPO5 8.8 599 1 0% 0.00 243 280 0 0.0% 3,575 (2) -0.1% Gym 10% better than code; LDGY1 8.8 596 3 1% 0.00 243 280 0 0.1% 3.575 (2) -0.1% 4 Gym 15% better than code; LDGY2 8.8 595 5 1% 0.00 243 280 0 0.1% 3,576 (3) -0.1% Gym 20% better than code; LDGY3 8.7 593 6 1% 0.00 243 280 0 0.1% 3,577 (4) -0.1% Ffiness/Cardo 10% better than code; LDFT1 8.8 599 1 0% 0.00 243 280 0 0.0% 3,575 (2) -0.1% 4 Flfness/Cardo 20% better than code; LDFT2 8.8 598 1 0% 0.00 243 280 0 0.1% 3,577 (5) -0.1% Pert /Aerobic 10% better than code; LDPA1 8.8 599 0 0% 0.00 243 280 0 0.0% 3,574 (1) 0.0% Perf/Aerobic 20% better than code; LDPA2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,575 (2) -0.1% Teen Center 9% better than code; LDTC1 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (0) 0.0% Teen Center 20% better than code; LDTC2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (0) 0.0% Party/Craft 10% better than code; LDPC1 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (0) 0.0% Party/Craft 21% better than code; LDPC2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (1) 0.0% Indoor Piayarea 10% better than code; LDIP1 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 (1) 0.0% 4 Indoor Playarea 20% better than code; LDIP2 8.8 599 0 0% 0.00 243 280 0 0.0% 3,574 (2) 0.0% Chiller, 5% decr KWAon, air cooled; MCHO1 8.5 576 23 4% 0.00 243 280 0 0.0% 3,573 0 0.0% Chiller, 13% decr KWAon, air cooled; MCH02 7.9 540 60 10% 0.00 243 280 0 0.0% 3,573 0 0.0% 4 Chiller, 18% deer KWAon, air cooled; MCH03 7.6 517 83 14% 0.00 243 280 0 0.0% 3,573 0 0.0% Chiller, 0% deo' KWAon, wit cooled; .MCH07 5.6 383 216 3894 0.00 243 280 0 0.0% 3,573 0 0.0% Chiller, 10% decr KWAon, wir cooled; MCH04 5.3 360 240 40% 0.00 243 280 0 0.0% 3,573 0 0.0% 4 Chiller, 20% decr KW/ton, wtr cooled; MCHO5 4.9 336 263 44% 0.00 243 280 0 0.0% 3,573 0 0.0% Chiller, 30% decr KWAon, wtr cooled; MCH06 4.6 313 287 48% 0.00 243 280 0 0.0% 3,573 0 0.0% Gas boiler 83% effic; MHT01 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 0 0.0% 4 Gas boiler w /condensing technology, MHT03 8.8 599 0 0% 0.00 243 280 0 0.0% 3,573 0 0.0% Premium eff suppy /retum fan motors; MMT03 8.8 597 2 054 0.00 243 279 1 02% 3,576 (4) -0.1% Premium eff pump motors; MMT04 8.8 599 1 0% 0.00 243 280 0 0.0% 3,573 0 0.0% VSD's on supply air fans; MLRO2 8.6 587 12 2% 0.00 246 276 4 1.4% 3,598 (26) -0.7% VSD on htg pump; MLRO3 8.8 597 3 0% 0.00 243 280 0 0.0% 3.573 0 0.0% 4 VSD on dg pump; MLRO4 8.8 597 3 0% 0.00 243 280 0 0.0% 3,573 0 0.0% CO2 control of outside sir, MOA02 7.0 478 121 20% 0.00 350 194 88 30.7% 1,962 1,610 45.1% Sensible Feat Recovery; MHRS1 8.8 597 3 0% 0.00 243 280 0 0.0% 1,951 1,622 45.4% t Total Heat Recovery, MHRT1 7.0 476 124 21% 0.00 353 192 88 31.3% 1,951 1,622 45.4% 4 4 4 4 ECC_1StrategyReport.doc THEWEIDT'GROUP Page 35 t l. Energy Assets SM Custom Consulting Xcel Energy Strategy Report Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 ® Eagan Community Center Appendix B Annual Energy by Fuel Source Page 7 of 10 • 67,917 SO.FT. Annual Energy Annual Electric Annual Gas 111 1 P Code Base: CODE1 12,837 1,185,822 8,788 11 Lo E BM 1/ alum frame; W0901 12,810 27 0% 1,164,559 21 263 2% 8,834 (46) 1 % L o E dear hi VT/ alum frame; W1201 12,757 80 1% 1,161,454 24,367 2% 8,791 (3) 0% Lo E tint hI VT/ alum frame; W1301 12,717 121 1% 1,151,672 34,149 3% 8,784 4 0% TKDA Cost Base Glass; W3201 12,745 93 1% 1,147 221 38,601 3% 8,827 (39) 0% D aylt9: CI Step; 9129: LoE dr 1; D0601 12,835 2 0% 1,178,968 6.853 1% 8,810 (22) 0% Dayttg: CI Step; 9129: LoE tint 1; D0901 12,807 30 0% 1,157,735 28,087 2% 8,854 (66) -1% , Dayttg: CI Step; 91zg: LoE dr hi VT; 01201 12,753 84 1% 1,154,513 31,308 3% 8,811 (23) o% Dayltg: CI Step; 9129: LoE tint hi VT; D1301 12,715 123 1% 1,144,936 40,885 3% 8,805 (17) 0% Dayttg: CI Step; 9129: TKDA; D3201 12,742 95 1% 1,140,953 44,868 4% 8,847 (59) -1% a Dayltg: CI Dim; 0120: LoE dr 1; 00602 12,838 (1) 0% 1,167,253 18,568 2% 8,852 (64) -1% Dayttg: CI Dim; gag: LoE tint 1; D0902 12,809 28 0% 1,145,639 40,182 3% 8,897 (109) -1% Dayltg: CI Dim; gizg: LoE dr hi VT; D1202 12,754 83 1% 1,142,213 43,609 4% 8,854 (66) -1% • Dayttg: CI Dim; 9129: LoE tint hi VT; 01302 12,717 120 1% 1,132,899 62,923 4% 8,849 (61) -1% Dayttg: CI Dim; 9120: TKDA; D3202 12,745 92 1% 1,129,092 56,730 6% 8,890 (102) -1% Dayttg: FT/PA Step; 9129: L0E dr 1; D0603 12,824 13 0% 1,181,341 4,481 0% 8,791 (2) 0% Dayttg: FT/PA Step; 0129: LoE tint 1: D0903 12,799 38 0% 1,160254 25,568 2% 8,837 (49) -1% Dayttg: FT/PA Step; glzg: LoE clr hl VT; D1203 12,746 91 1% 1,157,032 28,790 2% 8,795 (7) 0% 0 Dayttg: FT/PA Step; glzg: LoE tint hi VT; D1303 12,706 131 1% 1,147,309 38,513 3% 8,789 (1) 0% Dayltg: FT/PA Step; 9129: TKDA; 03203 12,735 102 1% 1,143,648 42,174 4% 8,831 (42) 0% Dayttg: FT/PA Dim; 9129: LoE dr 1; D0604 12,807 30 0% 1.172,730 13,092 1% 8,803 (14) 0% 11 1 Dayttg: FT/PA Dim; 0129: LoE tint 1; D0904 12,784 53 0% 1,151,848 33,974 3% 8,851 (63) -1% Dayttg: FT/PA Dim; 9129: LoE dr hi VT; 01204 12,732 106 1% 1,148,856 37,166 3% 8,810 (21) 0% Dayttg: FT/PA Dim; glzg: LoE tint hi VT; 01304 12,694 143 1% 1,139,137 46,684 4% 8,805 (16) 0% a Dayttg: FT/PA Dim; 9129: TKDA; 03204 12,723 114 1% 1.135,359 50,462 4% 8,846 (58) -1% Dayttg: PC/IP/TC Step: 9129: LoE dr 1; D0605 12,832 5 0% 1,183.332 2,489 0% 8.792 (4) 0% Dayttg: PC/IP/TC Step; gang: LoE tint 1; D0905 12,805 32 0% 1,162,274 23,547 2% 8,837 (48) -1% I I Dayltg: PC/P/TC Step; 9129: LoE dr hi VT; D1205 12,752 85 1% 1,159,170 26,652 2% 8,794 (6) 0% Dayltg: PC/IP/TC Step; 9129: LoE tint hi VT; D1305 12,713 124 1% 1,149,564 36,258 3% 8,788 1 0% Dayttg: PC/IP/TC Step; 9129: TKDA; D3205 12,740 97 1% 1,145,288 40,534 3% 8,829 (41) 0% Dayttg: PC/IP/TC Dim; 9129: LoE dr 1; D0606 12,829 9 0% 1,180.052 5,770 0% 8,799 (11) 0% Dayttg: PC/IP/TC Dim; 9129: LoE tint 1; 00906 12,801 36 0% 1,158,965 26,857 2% 8,844 (55) -1% III Dayltg: PC/IP/TC Dim; 9129: LoE dr hl VT; 01206 12,748 90 1% 1,155,743 30,078 3% 8,801 (13) 0% Dayttg: PC/IP/TC Dim; 9129: LoE tint hi VT; 01306 12,709 128 1% 1,146,313 39,509 3% 8,795 (7) 0% Dayltg: PC/IP/TC Dim; glzg: TKDA; 03206 12,737 100 1% 1,142213 43,609 4% 8,837 (49) -1% , Dayttg: DN Step; 91z9: LoE dr 1; 00607 12,772 65 1% 1,164,471 21,351 2% 8,796 (8) 0% Dayttg: DN Step; 9129: LoE tint 1; 00907 12,781 66 0% 1,150,852 34,969 3% 8,852 (64) -1% Dayttg: DN Step; glzg: LoE dr hi VT; D1207 12,728 109 1% 1,147,660 38,162 3% 8,809 (21) 0% Dayttg: DN Step; glzg: LoE tint hi VT; 01307 12,687 150 1% 1,137,995 47,826 4% 8,801 (13) 0% Dayttg: DN Step; 9129: TKDA; 03207 12,716 121 1% 1,134,305 51,517 4% 8,843 (55) -1% Dayttg: DN Dim; 9129: LoE dr 1; 00608 12,752 86 1% 1,153,078 32,743 3% 8.814 (26) 0% Dayttg: DN Dim; 9129: LoE tint 1; D0908 12,758 79 1% 1,138,786 47,036 4% 8,870 (82) -1% Dayttg: DN Dim; 9129: LoE dr hi VT; D1208 12,704 133 1% 1,135,506 50,316 4% 8,827 (39) 0% 11 Dayttg: DN Dim; glzg: LoE tint hi VT; D1308 12.665 173 1% 1,126,222 59,800 5% 8.819 (31) 0% Dayttg: DN Dim; 9129: TKDA; D3208 12,693 144 1% 1,122,385 63,437 5% 8,861 (73) -1% Dayttg: PO Step; 9120: LoE dr 1; D0609 12,832 5 0% 1,184,123 1,899 0% 8,789 (1) 0% 1 Dayttg: PO Step; glzg: LoE tint 1; D0909 12,805 32 0% 1,162.655 23,166 2% 8,835 (47) 1% D ayttg: PO Step; 0120: LoE dr hl VT; D1209 12,752 85 1% 1,158,639 26.183 2% 8,793 (4) 0% Dayttg: PO Step; 91zg: LoE tint hi VT; D1309 12,711 126 1% 1,149,915 35,906 3% 8,785 4 0% , Dayttg: PO Step; 9129: TKDA; 03209 12,741 96 1% 1,146225 39.597 3% 8,827 (39) 0% Dayltg: PO Dim; 0120: LoE dr 1; D0610 12,818 19 0% 1,181223 4,598 0% 8,785 3 0% Dayttg: PO Dim; glzg: LoE tint 1; 00910 12,793 44 0% 1.159.697 26,124 2% 8,833 (45) -1% Il Dayttg: PO Dim; 9129: LoE dr hi VT; D1210 12.741 96 1% 1,156,915 28.907 2% 8,791 (3) 0% Dayttg: PO Dim; 9129: LoE tint hi VT; D1310 12,700 138 1% 1,147,074 38,747 3% 8,783 5 0% Dayttg: PO Dim; glzg: TKDA; 03210 12,727 110 1% 1,143,355 42,467 4% 8,823 (35) 0% 0 0 ECC_1StrategyReport.doc THEWEIDTGROUP Page 36 0 0 • - . , .... . t Energy Assets S M Custom Consulting Xcel Energy Strategy Report - Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 , t Eagan Community Center Appendix B 4 Annual Energy by Fuel Source Page 8 of 10 67,917 SQ.FT. 4 Annual Energy Annual Electric Annual Gas EE 4 gi co 0 c S S se 4 Code Base; CODE1 12,837 1,185,822 8,788 R-30 roof lnsulatlon; ER3W1 12,762 75 1% 1,178.880 6,941 1% 8,737 52 1% , R- 16wal insulation ; ER2W2 12,610 227 2% 1,177.943 7,878 1% 8,588 200 2% R -20 wall insulation; ER2W3 12,524 314 2% 1,177,592 8,230 1% 8.503 285 3% Private Office occup. sensor control; LCP01 12.769 68 1% 1,170,182 15,640 1% 8,773 15 0% 4 Private Office dual level switching; LCPO2 12,801 36 0% 1.179,847 5,975 1% 8,772 16 0% Storage /Small Restroom Occupancy sensor, LCSTI 12,854 (17) 0% 1,163,007 22,815 2% 8,883 (95) -1% Groulation manual dimming; LCCI3 12,848 (11) 0% 1,175,220 10,602 1% 8,835 (47) -1% 4 Gymnasium multilevel switching; LCGY2 12,801 38 0% 1,160,839 24.982 2% 8,838 (50) -1% Community Room dual level switching; LCDN2 12.824 13 0% 1,177,768 8,054 1% 8,803 (15) 0% , Community Room manual dimming; LCDN3 12,815 22 0% 1,172,144 13.677 1% 8,813 (25) 0% Fitness/Cardio duel level switching; LCFT2 12,831 6 0% 1,181.077 4,745 0% 8.799 (10) 0% Party /Craft dual level switching; LCPC2 12,837 (0) 0% 1,184.679 1,142 0% 8,792 (4) 0% Teen Center manual dimming; LCTC3 12,836 1 0% 1,184,767 1,054 0% 8,791 (2) 0% Indoor Flayarea dual level switching; LCIP2 12,838 (1) 0% 1,184,211 1,611 0% 8,794 (6) 0% Perf/Aerobic dual level switching; LCPA2 12.839 (2) 0% 1,183,215 2,607 0% 8,799 (11) 0% , Private office direct system at 701c; LDPO1 12,850 (12) 0% 1,187,960 (2,138) 0% 8,793 (5) 0% Private office direct system at 50 fc; LDPO2 12.798 39 0% 1,178,763 7,058 1% 8,773 15 0% Private office Indirect system at 50 lc ; LDP03 12,850 (12) 0% 1,187,960 (2.138) 0% 8,793 (5) 0% 4 PO Task/Ambient 30 fc ambient; 0.3 W /a1 Task.; LDPO4 12,797 40 0% 1,174,487 11,334 1% 8.787 2 0% PO directAndlr, 85% relict ceiling, 45 fc; LDPO5 12,798 39 0% 1,175.717 10,104 1% 8,783 5 0% Gym 10% better than code; LDGYI 12,825 12 0% 1,177,563 8,259 1% 8,804 (16) 0% 4 Gym 15% better than code; LDGY2 12.818 19 0% 1,173,492 12,330 1% 8,812 (23) 0% Gym 20% better than code; LDGY3 12,812 25 0% 1,169,274 16,547 1% 8,820 (32) 0% Fitness/Cardio 10% better than code; LDFT1 12,833 4 0% 1,182,541 3,280 0% 8,795 (7) 0% Fitness/Cardio 20% better than code; LDFT2 12,829 8 0% 1,179,378 6,443 1% 8,802 (14) 0% Perf /Aerobic 10% better than code; LDPA1 12,838 (1) 0% 1,184,064 1,757 0% 8.795 (7) 0% Perf/Aerobic 20% better than code; LDPA2 12,840 (2) 0% 1,182,278 3,544 0% 8,803 (15) 0% Teen Center 9% better than code; LDTC1 12,836 1 0% 1,185,441 381 , 0% 8,789 (1) 0% Teen Center 20% better than code; LDTC2 12,836 1 0% 1,184,972 849 0% 8,790 (2) 0% Party /Craft 10% better than code; LDPC1 12.837 (0) 0% 1,185,031 791 0% 8,791 (3) 0% Party/Craft 21% better than code; LDPC2 12,838 (1) 0% 1,184,240 1,582 0% 8,794 (6) 0% Indoor Playarea 10% better than code; LDIP1 12,838 (1) 0% 1.184,797 1,025 0% 8,792 (4) 0% 4 Indoor Flayarea 20% better than code; LDIP2 12,838 (1) 0% 1,183,625 2,197 0% 8,796 (8) 0% Chiller, 5% deer KW/ton, air cooled; MCH01 12,774 63 0% 1,167,341 18,480 2% 8.788 0 0% Chiller, 13% decr KW/ton, air cooled; MCH02 12,673 164 1% 1,137,732 48,090 4% 8,788 0 0% 4 Chiller, 18% decr KW/ton, air cooled; MCH03 12,610 227 2% 1,119,222 66,600 6% 8,788 0 0% Chiller, 0% deer KW/ton, wtr cooled; MCH07 12,515 322 3% 1,091,457 94,364 8% 8,788 0 0% Chiller, 10% deer KW/ton, wtr cooled; MCH04 12,441 397 3% 1,069,667 116,154 10% 8,788 0 0% Chiller, 20% deer KW/ton, wtr cooled; MCH05 12,366 471 4% 1,047.848 137,973 12% 8,788 0 0% Chiller, 30% decr KW/ton, wtr cooled; MCI-106 12,291 546 4% 1,026,000 159,822 13% 8,788 0 0% Gas boiler 83% effic; MHT01 12,486 352 3% 1,185,822 0 0% 8,437 352 4% Gas boiler w /condensUq technology, MHT03 9,512 3,325 26% 1,185.822 0 0% 5,463 3,325 38% Premium eff supply/return fan motors; MMT03 12,823 14 0% 1,176,655 9,167 1% 8,805 (17) 0% Premium eff pump motors; MMT04 12,830 7 0% 1,183,742 2,079 0% 8.788 0 0% VSD's on supply air fans; MLRO2 12.710 127 1% 1,097,783 88,038 7% 8.962 (174) -2% VSD on htg pump; MLRO3 12.784 54 0% 1,165,027 20,794 2% 8,806 (18) 0% 4 VSD on ctg pump; MLRO4 12,687 151 1% 1,141,744 44,078 4% 8.788 0 0% CO2 control of outside air, MOA02 8,431 4,407 34% 1,062,638 123,183 10% 4,802 3,986 45% Sensible Heat Recovery, MHRS1 9,248 3,589 28% 1.178,412 7,410 1% 5,225 3,564 41% 4 Total Heat Recovery; MHRT1 8.911 3,926 31% 1,078,629 107,192 9% _ 5,228 3,560 41% 4 4 4 4 ECC_1StrategyReport.doc THEWEIDTGROUP Page 37 4 4 O Energy Assets SM Custom Consulting Xcel Energy Strategy Report g! Eagan Central Park Community Center June 6, 2001 67,000 sq. ft. 7026.81 Eagan Community Center Air Pollution Appendix B 67,917 SO.FT. Pape 9 of 10 6 • I 1 I I 1 II i i Code Base: CODE1 521,515 1,949.50 1,919.86 179.95 525,564.58 Lo E tint 1/ alum frame; W0901 512,176 9,339 1,914.55 34.96 1,885.45 34.41 176.72 3.23 516,152.73 9,411.8 6 Lo E clear N VT/ alum frame; W1201 510,810 10,706 1,909.44 40.06 1,880.42 39.44 17825 3.70 514,775.86 10,788.9 Lo E tint hi VT/ alum frame; W1301 506,511 15,004 1,893.36 56.14 1,864.59 55.27 174.77 5.18 510,444.04 15,120.5 TKDA Coat 8888 Glass; W3201 504,558 16,957 1,886.04 63.46 1,857.38 62.47 174.09 596 508,475.49 17,089.1 lb Dayltg CI Step; 91zg: LoE dr 1; D0601 518,506 3,010 1,938.24 11.27 1,908.77 11.09 178.91 1.04 522,531.41 3.0332 Dayttg: CI Step; plzg: LoE Unt 1; 00901 509,179 12,336 1,903.33 46.17 1,874.40 45.45 175.89 426 513,132.46 12,432.1 Dayttp: CI Step; 9zp: LoE dr N VT; 171201 507,761 13,754 1,898.03 51.47 1,869.19 50.67 17520 4.75 511,703.50 13,861.1 Dayttp: CI Step; 01x9: LoE Unt N VT; 01301 503,553 17,962 1,88229 67.22 1,853.68 66.17 173.75 620 507,462.71 18,101.9 D9y11g: CI Step; 01x0: TKDA; 03201 501,805 19,710 1,875.74 73.76 1,847.24 72.62 173.14 691 505,701.54 19,863.0 Dayltg: CI Dm; 91zp: LoE dr 1; D0602 513,361 8,154 1,918.98 30.53 1,889.81 30.05 177.13 2.82 517,346.85 8,217.7 6 Daylt9: CI Dim; gtzg: LoE tint 1; 00902 503,867 17,648 1,883.44 66.06 1,854.83 65.03 173.85 6.10 507,779.35 17,785.2 Dayltg: CI Dm; 01x0: LoE ck N VT; 01202 502,359 19,156 1,877.81 71.69 1,84928 70.58 173.33 6.62 506,259.58 19,305.0 Dayttp: CI Dim; glzg: LoE tint N VT; D1302 498,267 23,248 1,862.50 87.01 1,834.20 85.65 171.92 8.03 502,135.55 23,429.0 OP Dayttp: 0 Dim; g12g: TKDA; 03202 496,597 24,919 1,85624 93.26 1,828.05 91.81 171.34 8.61 500,452.19 25,112.4 Dayttg: FT/PA Step; ptz9: LoE dr 1; D0603 519,547 1,969 1,942.14 7.37 1,912.60 7.25 17927 0.68 523,580.67 1,983.9 Dayttp: FT/PA Step; gtzg: LoE tint 1; 00903 510,285 11,231 1,907.47 42.03 1,878.48 41.38 176.07 3.88 514,246.68 11,317.9 Dayttp: FT/PA Step; glzg: LoE dr N VT; D1203 508,867 12,649 1,902.17 47.33 1,873.26 46.60 175.58 4.37 512,817.76 12,746.8 6 Dayttp: FT/PA Step; pip: LoE tint N VT; 01303 504,594 16,921 1,886.19 63.32 1,857.52 62.33 174.11 5.84 508,512.12 17,052.5 Dayttg: FT/PA Step; glzg: TKDA; 03203 502,988 18,527 1,880.17 89.33 1,851.60 6826 173.55 6.40 506,893.62 18,671.0 Dayttg: FT /PA dm; 91zg: LoE ek 1; D0604 515,764 5,751 1,927.98 21.52 1,898.67 21.19 177.96 1.99 519,788.87 5,795.7 6 Day1tp: FT/PA Din; pfrp: LoE tint 1; D0904 506,592 14,923 1,893.65 55.85 1,864.87 54.98 174.79 5.15 510,525.79 15,038.8 Dayttg: FT/PA dm; 91x0: LoE dr N VT; 01204 505,187 16,328 1,888.40 61.10 1,859.70 60.15 174.31 5.54 509,109.85 16,454.7 Dayttg: FT/PA Dim; 91zg: LoE tint N VT; 01304 501,005 20,510 1,872.75 78.75 1,844.30 75.55 172.87 7.08 504,895.07 20,669.5 • Dayttp: FT /PA Dim; plzp: 1103A; D3204 499,348 22,168 1,866.54 82.96 1,838.19 81.67 172.29 7.66 503,224.70 22,339.9 Dayttp: PCAP/7C Step; gin: LoE dr 1; 00605 520,422 1,094 1,945.41 4.09 1,915.83 4.03 179.57 0.38 524,462.54 1,102.0 Dayttp: PCAP/TC Step; gtzg: LoE tint 1; 00905 511,172 10,343 1,910.79 38.71 1,881.75 38.11 176.38 357 515,141.41 10,4232 6 Dayltg: PC/IP/TC Step; gig; LoE dr hi VT; 01205 509,806 11,709 1,905.69 43.82 1,876.72 43.14 175.91 4.04 513,764.36 11,8002 Dayltg: PC/IP/TC Step; glzp: LoE tint N VT; 01305 505,585 15,930 1,889.89 59.81 1,861.17 58.68 174.45 5.50 509,51056 16,054.0 Dayttp: PCAP/TC Step; 9tzp: TKDA; 03205 503,709 17,806 1,882.86 66.64 1,85425 65.60 173.80 6.15 507,619.73 17,944.8 Dayttg: PC/IP/TC Dim; glzg: LoE clr 1; 00606 518,981 2,534 1,940.02 9.49 1,910.52 9.34 179.07 098 523,010.60 2,554.0 Oayltp: PCJIP/7C Dim; 9129: LoE tint 1; 00906 509,719 11,796 1,905.35 44.15 1,876.39 43.46 175.87 4.07 513,676.45 11,888.1 Dayttg: PC/1P/TC Dim; 01x9: LoE cir N VT; D1206 508,301 13,214 1,900.05 49.45 1,871.18 48.68 175.39 4.56 512,247.55 13,317.0 • Dayitg: PCAP/TC Dim; plzp: LoE tint hl VT; 01306 504,157 17,358 1,884.55 64.95 1,855.91 63.94 173.95 5.99 508,071.58 17,493.0 Dayttg: PCAP/TC dm; glz9: TKDA; D3206 502,358 19,157 1,877.61 71.69 1,84928 70.58 173.33 6.62 506256.61 19,306.0 Dayttg: DN Step; 9129: LoE dr 1; 00607 512,135 9,380 1,914.40 35.10 1,885.30 34.56 176.71 324 516,111.61 9,453.0 • Daytt9: DN Step; 9129: LoE Unt 1; 00907 506,155 15,360 1,892.01 57.49 1,86326 56.59 174.64 5.31 510,08491 15,479.7 Dayttp: ON Step; ptzg: LoE clr hl VT; 01207 504,750 16,765 1,886.76 62.74 1,858.09 61.76 174.18 5.79 508,668.94 16,895.6 Dayttg: DN Step; g1zp: LoE Unt hi VT; D1307 500,503 21,012 1,870.88 78.63 1,842.45 77.41 172.69 726 504,389.14 21,175.4 • Dayttg: DN Step; plzg: 7KDA; 03207 498,884 22,631 1,864.81 84.89 1,836.48 83.35 172.13 7.82 502,757.66 22,806.9 Dayttp: DN Dim; 912g: LoE dr 1; D0608 507,131 14,385 1,895.67 53.83 1,866.86 52.99 174.98 4.97 511,06826 14,496.3 Dayttg: DN Dim; gtzp: LoE tint 1; D0908 500,855 20,661 1,872.18 77.33 1,843.73 78.12 172.81 7.14 504,743.30 20,821.3 1110 Daylt9: DN Dim; 9129: LoE dr N VT; D1208 499,411 22,104 1,866.78 82.72 1,838.42 81.43 172.31 7.63 503,288.41 22,2762 Dayltg: DN Dim; pap: LoE Unt N VT; 01308 495,331 26,184 1,55152 97.98 1,823.40 96.46 170.91 9.04 499,177.18 26,387.4 Day1tg: DN Dim; 01x0: TKDA; 03208 493,648 27,867 1,84521 104.29 1,817.19 102.67 170.32 9.83 497,480.86 28,083.7 • Dayttg: PO Step; 91zg: LoE ck 1; 00609 520,769 746 1,946.71 2.79 1,917.11 2.75 179.69 026 524,812.49 752.1 Dayttp: PO Step; plzg: LoE tint 1; D0909 511,340 10,176 1,911.42 38.09 1,882.36 37.49 176.43 3.51 515,309.89 10,254.7 Dayttg: PO Step; 0I LoE dr N VT; 01209 510,012 11,503 1,906.46 43.05 1,877.48 42.38 175.98 3.97 513,971.73 11,592.8 • Dayttg: PO Step; 91z9: LoE Unt N VT; 01309 505,739 15,776 1,890.47 59.03 1,861.74 58.12 174.50 5.45 509,666.01 15,898.6 Daylt9: PO Step; 9129: MA; 03209 504,120 17,395 1,884.41 65.10 1,855.77 84.08 173.94 6.01 508,03456 17,530.0 Daft: PO Dim; 0129: LoE dr 1; D0610 519,495 2,020 1,941.94 7.56 1,912.41 7.44 17925 0.70 523,528.48 2,036.1 • DaN19: PO 01m; 0120: LoE tint 1; 00910 510,040 11,475 1,906.55 42.95 1,877.58 4226 175.99 3.96 514,000.05 11,564.5 Dayltg: PO Dim; 91z9: LoE ck N VT; 01210 508,815 12,700 1,901.98 47.52 1,873.07 46.79 175.56 4.39 512,765.63 12,798.9 Dayttp: PO Dkn; gtzg: LoE Unt N VT; D1310 504,491 17,024 1,885.80 63.70 1,857.14 62.71 174.07 598 508,408.04 17,156.5 II Dayltg: PO Dim; 91h9: TKDA; D3210 502,859 18,656 1. 879.69 69.82 1,851.13 68.73 173.51 6.44 - 506,763.50 18,801.1 II 1 1 1 THEWEIDTGROUP Page 38 1 1 • Energy Assets Se' Custom Consulting Xcel Energy Strategy Report • il - Eagan Central Park Community Center June 6, 2001 4 67,000 sq. ft. 7026.81 , Eagan Community Center Appendix B 4 Air Pollution Page 10 of 10 67.917 SQ.FT. 4 ca Pil II 4 §ii § §Ii § §ii § 1 Code Base; CODE1 521,515 1,94950 1,919.86 17915 525,56458 4 R-30 rod i suta50n; ER3W 1 518,463 3,053 1,938.09 11.41 1,908.62 1124 178.90 1.05 522,48820 3,076.4 R- 16 wall insulation ; ER2W2 518,042 3,473 1,936.55 12.95 1,907.09 12.76 178.75 120 522,084.52 3,500.1 R -20 wall insulation; ER2W3 517,883 3,633 1,935.97 13.53 1,906.52 13.34 178.70 125 521,903.89 3,660.7 4 Private Office owup. sensor control; LCPO1 514,643 6,872 1,923.79 25.71 1,89454 25.31 17758 2.37 518,63815 8,925.6 Private Office dual level sw1tcNnp; LCPO2 518,889 2,626 1 ,939.68 9.82 1,910.19 9.67 179.04 0.91 522,91824 2,646.3 Storage /Small Restroom Oeeuperwy sensor; LCST1 511,497 10,018 1 ,911.99 37.51 1,882.94 36.92 178.49 3.46 515,468.35 10,0962 Cka4a8On manual dimming; LCCl3 516,860 4,655 1,932.07 17.43 1,902.70 17.16 178.34 1.61 520,873.05 4,691.5 Gymnasium multilevel swllcNna LCGY2 510,542 10,973 1,906.43 41.07 1,879.43 40.43 176.16 3.79 514,506.07 11,058.5 Comm nity Room dual level swttching; LCDN2 517,978 3,538 1,93626 1324 1,906.82 13.03 178.73 122 521,999.33 3,565.3 ' Concur* Room manual dimming; LCDN3 515,508 6,008 1,927.02 22.49 1,897.72 22.14 177.87 2.08 519,510.13 6,054.4 F8neuCardo dual level swdcNng; LCFT2 519,431 2,084 1,941.70 7.80 1,912.18 7.68 17923 0.72 523,464.42 2,1002 Parly/Crall dual level swAtcNng; LCPC2 521,014 502 1,947.82 1.88 1,918.01 1.85 179.78 0.17 525,059.09 505.5 4 Teen Center manual dimming; LCTC3 521,052 463 1,947.77 1.73 1,918.15 1.71 179.79 0.16 525,097.88 466.7 indoor Playarea dual level switching; LCIP2 520,808 707 1 ,946.85 2.65 1,91725 2.61 179.70 024 524,851.71 712.9 PeWVAerobic dual level switching; LCPA2 520,371 1,145 1,94522 4.29 1,915.64 422 179.55 0.40 524,411.09 1,153.5 4 Private office direct system at 70 Lc; LDPO1 522,455 (940) 1 ,953.02 (3.51) 1,923.32 (3.46) 180.27 (0.32) 526,511.52 (946.9) Private office direct system at 50 fc; LDPO2 518,413 3,102 1,937.90 11.60 1,908.43 11.42 178.88 1.07 522,438.48 3,126.1 Private office Indirect system at 501c ; LDPO3 522,455 (940) 1,953.02 (3.51) 1,923.32 (3.46) 18027 (0.32) 526,511.52 (946.9) 4 PO TasWAmblent 30 fc ambient 0.3 W/sf Task.; LDPO4 516,535 4,980 1 ,930.87 18.63 1,901.51 18.34 178.23 1.72 520,545.99 5,018.6 PO direcNndir, 85% relict ceiling, 45 fc; LDPOS 517,076 4,440 1,932.89 16.61 1,903.50 16.35 178.42 1.53 521,090.45 4,474.1 Gym 10% better than code; LDGY1 517,888 3,628 1,935.92 13.58 1,906.49 13.37 178.70 125 521,908.83 3,655.9 4 Gym 15% better than code; LDGY2 516,099 5,416 1,929.23 2027 1,899.90 19.95 178.08 1.87 520,106.56 5,458.0 Gym 20% better than code; LDGY3 514,247 7,268 1,922.30 2720 1,893.08 26.78 177.44 2.51 518,239.70 7,324.9 Rtness/Cardlo 10% better than code; LDFTI 520,075 1,441 1,944.11 5.39 1,914.55 5.31 179.45 0.50 524,112.61 1,452.0 4 Fitness/Cardio 20% better than code; LDFT2 518,685 2,830 1 ,938.91 10.59 1,909.43 10.43 178.97 0.98 522,712.50 2,852.1 Pert/Aerobic 10% better than Code; LDPA1 520,744 772 1,946.61 2.89 1,917.01 2.84 179.68 027 524,786.94 777.6 Perf/Aerobic 20% better Can code; LDPA2 519,959 1,556 1,943.68 5.83 1,914.12 5.73 179.41 0.54 523,996.35 1,568.2 4 Teen Center 9% better than code; LDTC1 521,348 167 1,948.88 0.63 1,91924 0.62 179.89 0.06 525,396.03 168.6 Teen Center 20% better than code; LDTC2 521,142 373 1,948.11 1.40 1,918.48 1.37 179.82 0.13 525,188.63 375.9 Party/Cnaft 10% better than code; LDPC1 521,168 347 1,94820 1.30 1,918.58 128 179.83 0.12 525,214.62 350.0 ' Pary/Crett21% better than code; LDPC2 520,821 695 1,946.90 2.60 1,917.30 2.56 179.71 024 524,864.67 699.9 indoor Playarea 10% better than code; LDIP1 521,065 450 1,947.82 1.69 1,91820 1.66 179.79 , 0.16 525,110.94 453.6 indoor Playarea 20% better than code; LDIP2 520,551 965 1,945.89 3.61 1,916.30 3.55 179.62 0.33 524,592.47 972.1 ' CNller, 5% deer KW/ton, air cooled; MCH01 513,396 8,120 1 ,919.12 30.38 1,889.95 29.91 177.14 2.80 517,381.98 8,182.6 Gilder, 13% decr KWAOn, air cooled; MCH02 500,387 21,129 1,870.44 79.06 1,842.02 77.83 172.65 7.30 504,271.66 21,292.9 Chiller, 18% decr KW/ton, ak cooled; MCH03 492,254 29.261 1140.01 109.49 1,812.06 107.79 189.84 10.11 496,076.09 29,488.5 Ch8ler, 0% deer KWAon, w9 cooled; MCH07 480,056 41,480 1,794.37 155.14 1,767.13 152.73 185.63 14.32 483,782.74 41,781.8 Order, 10% decr KW/ton, wtr cooled; MCH04 470,482 51,033 1,758.54 190.96 1,731.86 188.00 182.32 17.62 474,134.79 51,429.8 Chiller, 20% deer KW/ton, wb cooled; MCH05 460,896 60,620 1,722.67 226.83 1,696.55 223.31 159.01 20.94 464,473.87 61,090.7 Chiller, 30% decr KW/ton, wtr cooled; MCH06 451,298 70 ,219 1,686.75 262.75 1,661.18 258.67 155.70 24.25 454,799.99 70,764.6 Gas boiler 83% erne; MHT01 521,495 21 1,949.50 0.00 1,919.83 0.02 179.95 0.00 525,543.92 20.7 Gas boiler w/condensUp technology; MHT03 521,320 195 1,949.50 0.00 1,919.63 023 179.94 0.01 525,369.15 195.4 I Premium e8 supply/return fan motors; MMT03 517,489 4,027 1,934.43 15.07 1,905.02 14.84 178.56 1.39 521,506.69 4,057.9 Premium eft pump motors; MMT04 520,602 914 1,946.08 3.42 1,916.49 3.37 179.63 0.32 524,643.87 920.7 VSD's on supply ak fans; ML1002 482,845 38,670 1,804.77 144.74 1,777.38 142.48 166.59 13.36 486,593.96 ' 38,970.6 I VSD on htg pump; MLR03 512,380 9,135 1,915.32 34.19 1,88620 33.85 178.79 3.16 516,358.56 9,206.0 VSDonclgpump; MLRO4 502,149 19,368 1,877.04 72.46 1,848.52 71.34 17326 6.69 508,04823 19,516.3 CO2 control of outside air; MOA02 467,160 54,355 1,746.99 202.52 1,72021 199.64 16125 18.70 470,78829 54,776.3 Sensible Heat Recovery; MHRS1 518,051 3,465 1,937.32 12.18 1,907.62 12.23 178.82 1.13 522,074.32 3,490.3 Total Heat Recovery; MHRT1 474,211 47,305 1,77328 176.23 _ 1,746.12 173.73 163.68 1627 477,893.68 47,670.9 r ECC_1 StrategyReporldoc 'THEWEIDTGROUF Page 39 THE WEIDT GROUP Memorandum TO: Bill Armstrong TKDA FROM: Paul Riemer Telephone 952- 938 -1588 The Weidt Group Fax 952- 938 -1480 PROJECT: Xcel Energy: Energy Assets Custom Consulting / Eagan Community Center COMM NO: 7026.81 DATE: May 15, 2001 MESSAGE: This document defines in detail the energy saving strategies that we discussed at our Introductory Meeting on April 25, and it is provided for your use in estimating incremental construction costs. A detailed description of each strategy and the cost estimates required are listed on the following pages. Please provide costs for each strategy marked as "incremental cost." The next Energy Assets meeting was originally scheduled for May 23 with all incremental construction costs due May 18. This costing exercise typically requires two weeks to complete. Therefore, we request that the May 23 Energy Assets meeting be postponed so that sufficient time is allowed for completing these cost estimates. If costs are submitted by May 30, we would propose rescheduling the next Energy Assets meeting for June 6, 1:30 pm at TKDA in St. Paul. Thanks in advance for your help. Please call Paul Riemer at 952 -938 -1588 if you have any questions or require assistance in completing this task. 5800 Baker Road Suite 100 Minnetonka Minnesota 55345 Telephone 952.938.1588 Facsimile 952.938.1480 CC: Electronic Mail Ken Vraa City of Eagan kvraa( ci.eagan.mn.us Kathryn Poore - Larson TKDA poore.larson.ke('tkda.com twg atwgi.com Rob Schweich TKDA schweich.rcC'tkda.com World Wide Web Todd Udenberg TKDA udenberg.ta(a�tkda.com • Rww.th ewe i dt group. c om Dan Katzenberger The Weidt Group dantwgi.com k Architecture TWG Correspondence File 7026.81 Energy Software Xcel Energy G: 7026'.61') 1 sc\RequestConstCosts ECC_ConstCosts_Request. doc Incremental Cost Analysis Eagan Community Center May 9, 2001 7026.81 Architectural Costs Worksheet Window Glazing Please complete the following table and estimate the costs on a per square foot basis for the following window glazing material alternatives. vlrneoS -, -- -: LowE Clear Glazing with thermally broken aluminum frame 0.44 0.35 0.7 74% Generic required owE Tait Gating with thermally broken aluminum frame 0.44 0.31 0.47 63% Generic ♦- l required Tow Ch Clear High Visible Transmittance mittance Glaring with 0.42 0.29 0.44 44-- • thermally broken aluminum frame � �^enc required LowE Tint Hike a Transmittance Glaring with 0.42 0.29 0.35 130% ♦ �� thermally broken a n with frame Gen eric required • Typca! product may be found by reviewing glass properties listed above and consulting several manufacturers. Manufacturers are listed above for estimator's convenience, not for specific endorsement of product. Envelope Insulation Alternatives Please complete the following table and estimate the incremental costs on a per square foot basis for the following wall / roof envelope material alternatives. �M4a aaw i :- per SF Id =posed ; _ eX a � ' R -30 roof insulation requue R -11 wall insulation required R -16 we insulation COST BASE none R -20 wall insulation ~required 2 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Electrical Costs Worksheet Daylighting Controls Please complete the following table and estimate the incremental costs on a per space' basis for the following daytighting control strategies. Please assume that controls are applied to all fixtures in the applicable spaces. �.. . . ;..Cost of _}creroental cost lncinsnental cost . ' soror adcorolsr „�Uor�yofauming strategy 4.?c.,, : sj�riny p 100 per D Amillasts Per 1000 st b ,, dim"! l ,�aYast Stepped Daylighting $ nla Na wed Dimming Daylighting $ $ $ required Lighting Controls Please complete the following table and estimate the incremental costs on a per space" basis for the following lighting control strategies. Please assume that controls are applied to all fixtures in the applicable spaces. 0 11E 4 . T b - ' _ cost of a meld i Stratagd F, y .pereenso► ::, sa Private Office occupancy sensor control _ $ optional Storage /sm. Restroom occupancy sensor _ $ optional control Circulation occupancy sensor control _ $ optional ° S *A gi- - `: - , per 11ol t cost Oa =total wing .r.ACTfOM - """ per spaces Private Office dual level switching COST BASE COST BASE COST BASE none Circulation (pre - function) manual dimming COST BASE COST BASE • COST BASE none Gymnasium multilevel switching COST BASE COST BASE COST BASE none Community Room manual dimming COST BASE COST BASE COST BASE none Community Room dual level switching COST BASE COST BASE COST BASE none Fitness dual level switching COST BASE COST BASE COST BASE none Party /Craft dual level switching COST BASE COST BASE COST BASE none Teen Center manual dimming COST BASE COST BASE COST BASE none Indoor Play dual level switching COST BASE COST BASE COST BASE none Performance/Aerobic dual level switching COST BASE COST BASE COST BASE none 3 Incremental Cost Analysis Eagan Community Center May 9, 2001 7026.81 Electrical Costs Worksheet (continued) Ughting Design Alternatives Please complete the following table and estimate the incremental costs for the following lighting control strategies. 'te 'aaegO � r lr!!si r I'ype otFamae gy tPs: - +past per Reuse IOM . Private office dived system at 70 fc 2.00 200 - 2.20 $ optional Pnvate office direct system at 50 fc 2.00 1.55 - 1.75 $ optional Private office Indirect system at 50 fc 2.00 2.00 - 2.20 $ optional Private office Task/ Ambient at 25 to 30 fc ambient 0.2 to 0.3 W /sf Task 2 1.25 • 1.45 $ optional Private office dtrecvindir, 85% reflct ceiling. 45 is 2.00 1.35 - 1.55 $ optional Gym 10% better than code 1.00 0.80 - 1.00 $ optional Gym 20% better than code 1.00 0.70. 0.90 $ optional Fitness/Cardio 10% better than code 1.43 1 19 - 1 39 $ optional Fitness /Cardio 20% better than code 1.43 104.1 24 $ optional Perf Aerobic 10% better than code 1.51 1.26 - 1.46 $ optional Perf /Aerobic 20% better than code 1.51 1.11 - 1.31 $ optional Teen Center 10% better than code 0.60 0.44 • 0.64 $ optional Teen Center 20% better than code 0.60 0.38 - 0.58 $ optional • Party /Craft 10% better than code 0.55 0A0-0.60 $ Optional Party /Craft 20% better than code 0.55 0.34 $ optional Indoor Playarea 10% better than code 0.53 0.38 • 0.58 $ optional Indoor Playarea 20% better than code 0.53 0.32 - 0.52 $ optional 4 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Mechanical Costs Worksheet Cooling Efficiency Upgrades Please complete the following table and estimate the costs oh a per unit" basis for the following cooling strategies . "' egy 17::: MCH08 - Air - cooled chiller code efficiency 1.41 1.41 COST BASE none MCH01- Air - cooled chiller 10% deceased 1 41 1.34 $ed kW/Ton MCH02- Air-cooled chiller 20% deceased 1 41 1.27 $ required kW/Ton MCH03- Air - cooled chiller 30% decreased ♦—"— 1.41 1.20 $ required kW/Ton MCH07 - Water - cooled chiller code 0.73 0.73 $ optional efficiency MCH04 - Water-cooled chiller 10% 0.73 0.66 $ optional decreased kW/ton MCH05 - Water - cooled chiller 20% 0.73 0.58 $ optional decreased kW /ton MCH06 - Water - cooled chiller 30% 0.73 0.51 $ optional decreased kW/ton Heating Efficiency Upgrades Please complete the following table and estimate the costs on a "per unit" basis for the following heating strategies. 4 eq M HT01 - Gas boiler 83% efficient B0% 83% $ required 1HT03 - Gas boiler with Condensing $ required Technology (Familiarly: Aerco) Motor Efficiency Upgrades Please complete the following table and estimate the costs on a "per unit" basis for the following motor strategies. -r lsneree+Ka1 Strale -, # s t . z '4* Vost per nnmr - C f1ON 4 Premium efficiency fan motors 92% - 93% 94% - 95% $ required 4 4-- Premium efficiency pump motors 92% - 93% 94% - 95% $ required 5 Incremental Cost Analysis Eagan Community Center May 9, 2001 7026.81 Mechanical Costs Worksheet (continued) Load Responsive Equipment and Operation Please complete the following table and estimate the incremental costs for the following load responsive equipment strategies. Sfrafegy d ., uEM Contml . 11tratogy Cold ., Cost of f MLRO2 - VSDs on Supply /Retum fans Inlet Vanes VSD COST BASE none MLRO3 - VSD on heating pump Constant Speed VSD $ ♦■— required Outside Air Please complete the following table and estimate the incremental costs for the following outdoor air strategies. _ � ,�., �• 'ate b» o r te t {n Scnsiw Q L . Y Cost MOA02 - CO2 control of outside air required MHRS1 - Sensible Heat Recovery required MHRT1 - Total Heat Recovery $ 4111---- $ required • 6 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Summary Strategy Table Please review the attached table and detailed strategy information on the following pages. Please provide incremental costs for strategies not in the Cost Base and marked with an "X" in the "Incremental Cost" column. Strategy details can be found later in this document. Table 1. Strafe • List � Ea Inanoedat Una COG . Shading Cost u- Factor u- Factor Coefficient W0601 Lo E clear 11 alum frame (Code) X 0.44 0.35 0.70 0.74 W0901 Lo E tint 1/ alum frame X 0.44 0.31 0.47 0.63 W1201 Lo E dear hi VT/ alum frame X 0.42 0.29 044 0.69 W1301 Lo E tint hi VT/ alum frame X 0.42 0.29 0.35 0.60 ` Es Iecrementat Daylighting Controls cost Drm01 Stepped Daylighting in Circulation X Daa02 Dimming Daylighting in Circulation X D##03 Stepped Daylighting in Fitness & Performance X D#404 Dimming Daylighting in Fitness & Performance X D##05 Stepped Daylighting in Lounges & Indoor Play X D##06 Dimming Daylighting in Lounges & Indoor Play X D##07 Stepped Daylighting in Community Rooms X D#008 Dimming Daylighting in Community Rooms X D##09 Stepped Daylighting in Private Offices X Dfa+10 Dimming Daylighting in Private Offices X in Envelope insulation Mtetrtatilres El Co. lte natal eill EMI ERS:i' R -30 roof insulation X R -22 R -30 ER2Vv 1 R -11 wall insulation X R -11 R -11 ER2W2 R -16 wall insulation X R -11 R -16 ER2W3 R -20 wall insulation X R -11 R -20 Et Incremental Peale - Lighting Lighting Controls Controls CO015 Co Coss reduction ERR LC %01 Private Office occup sensor control X 15% 40% LCP02 Private Office dual level switching X 15% 15% LCST1 Storage /Small Restroom Occupancy sensor X 50% 70% LCCI1 Circ/ msc occup. sensor control X 5% 20% LCCI3 Circulation manual dimming X 25% 25% LCGY2 Gymnasium multilevel switching X 30% 30% LCDN2 Community Room dual level switching X 15% 15% LCDN3 Community Room manual dimming X 25% 25% LCFT2 Fitness/Cardio dual level switching X 15% 15% LCPC2 Party /Craft dual level switching X 15% 15% LCTC3 Teen Center manual dimming X 25% 25% LCIP2 Indoor Playarea dual level switching X 15% 15% LCPA2 Pert /Aerobic dual level switching X 15% 15% ID si Incremental Typical Code Co al S@ wM Strategy wM LDPO1 Private office direct system at 70 fc X 12 x 14' 2.00 2.00 - 2.20 LDP02 Private office direct system at 50 fc X 12' x 14' 2.00 1.55 - 1.75 LDP03 Private office Indirect system at 50 fc X 12' x 14' 2.00 2.00 - 2.20 Private office Task/ Ambient at 25 to 30 fc LDPO4 ambient; 0.2 to 0.3 W /sf Task. X 17 x 14' 2.00 1.25. 1.45 LDPO5 Private office direct/ ndir, 85% retkt ceiling. 45 fc X 12' x 14' 2.00 1.35 - 1.55 LDGY1 Gym 10% better than code X 60' x 90' 1.00 0.80 - 1.00 LDGY2 Gym 20% better than code X 60'x90' 1.00 0.70 - 0.90 LDF71 Fitness/Cardio 10% better than code X 100' x 40' 1.43 1.19 - 1.39 LDFT2 Fitness/Cardio 20% better than code X 100' x 40' 1.43 1.04 - 1.24 LDPA1 Perf /Aerobic 10% better than code X 40' x 40' 1.51 1.26 - 1.46 LDPA2 Perf /Aerobic 20% better than code X 40' x 40' . 1.51 1.11 - 1.31 LDTC1 Teen Center 10% better than code X 25' x 25' 0.60 0.44 - 0.64 LDTC2 Teen Center 20% better than code X 25' x 25' 0.60 0.38 - 0.58 LDPC1 Party /Craft 10% better than code X 50' x 25' 0.55 0.40 -0.60 LDPC2 Party /Craft 20% better than code X 50' x 25' 0.55 0.34 -0.54 LDIP 1 Indoor Playarea 10% better than code X 50' x 50' 0.53 0.38 - 0.58 LDIP2 Indoor Playarea 20% better than code X 50' x 50' 0.53 0.32 - 0.52 Incremental Cost Analysis Eagan Community. Center May 9, 2001 7026. S ] Table 1. Strategy List Continued �r .. _ _ �:++____ Efi°ency MCHO6 Chiller, 0`,< decr KW/ton air cooled X MCI-101 X 1.41 1.27 01 Chiller, 5% decr KW/ton, air cooled 1.41 1. over 150 MCH02 Chiller, 10% decr KW /ton, air cooled over 150 X 1.41 1.27 over 150 MCH03 Chiller, 15% deer KW/ton. air cooled we Chiller, 0% decr KW/ton, w pooled X 1.71 1.20 over 150 MCH04 Chiller, 10% decr KW/on, we coded X 0.73 0.66 All X 0.73 0.66 All MCI-105 Chiller, 20% deer KW/ton, wtr coded X 0.73 0.5 MCH06 Chiller. 30% decr KW /ton, wtr cod X 0.73 0.51 1 All All In Code MHT01 H 83: ® E W'aency EEN MHT03 Gas boiler w /condensing technology X 80% 63 X 60 °! 83% IM . _ SI ENE M"./.7.:2. Premium ett supply/ return fan motors X MMT04 Premium ett pump motors X lin Load ReaPaasive Ppripment Operation and , I SLabyy M.R,L2 VSD's on supply air fans X inlet vanes VSD MLR03 VSD on ht g pump X const. speed VSD O MaerneKal Conditioning of Outside Air _ El l Cost Code Level r• CO2 contro of outside air X No Control CO2 ctrl MARS' Sensible Heal Recovery X No Control 60% effic MHRT1 Total Heat Recovery X No Control 60% effic • 8 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Window Glazing Alternatives Strategy Objectives: To help select the appropriate glazing type(s) for improved heating and cooling, not including daylighting. Strategy Description: Glazing types A variety of glazing types are evaluated. The Code Base model includes a glass that just meets State Energy Code, although it is up to the Design Team to determine which glass will, in fact, meet code. TWG is currently assuming a code base glazing of LowE clear. Each glass type is distinguished by its U- Factor (average for a typical size unit, Shading Coefficient (SC) and Visible Transmittance (VT). It is important to note that Low E/High VT glass refers to spectrally selective Low E, which is different from other "Low E" products in that the visible light transmission is higher relative to the shading coefficient. Please verify that the glazing selected for incremental cost analysis meets the criteria for U- value, Shading Coefficient (SC) and Visible Transmittance (VT) as listed below. If glazing alternatives other than those shown below are under consideration, provide the Unit U- Factor (if listed), C.O.G. (center of glass) U- Factor, Shading Coefficient, and Visible Light Transmittance for the alternative glazing(s), and these will be added to the list. Incremental Construction Costs Please provide installed construction costs, in S /s.f, for the glazing types listed below on the worksheet at the beginning of this document. rnneno.raf unit COG shading Window adari g and Frame Alternatives cost UFacster uiactor ' coerhdert W Lac_ 1 Lo E dee. 1: alur frame Code X 044 0.35 0.70 0.74 W0901 Lo E tint 1/ alum frame X 044 0.31 0.47 0 63 W1201 Lo E dear hi VT/ alum frame X 0.42 0.29 0.44 0.69 W 1301 Lc E tint hl VT. alum frame X 0 42 0.29 0.35 0 60 9 Incremental Cost Analysis Eagan Community Center May 9, 2001 7026.81 Daylighting Alternatives Strategy Objectives: To help determine if skylights with associated reduction in electric lighting requirements during daylight hours is a cost effective energy savings strategy for this project. Construction documents need to clearly show locations of photosensors and controlled lighting circuits and define performance requirements. Sensor application and installation should be per manufacturer's written recommendations. Contractor should be required to adjust time delay and directional settings to meet the needs of the space and instruct the maintenance staff as to proper procedures after all furnishings are in place. Maintenance staff should verify that these settings are appropriate once the building is occupied. Strategy Description: Cost Base Skylight Layout The cost base layout does not include any daylighting controls. Stepped Daylighting Perimeter daylighting control circuit (tandem The glazing and shading alternatives will each be considered in wired 2 lamps on circuit - 1 Tamp on typ circuit) conjunction with stepped daylighting controls. This strategy assumes that control devices turn off at least one �"j� j Time clock g during conntrol trol relay of lights at the perimeter of the buildin durin the D r l 1 `J 1 y -- photos-witch daylight hours. In order to prevent lights from cycling on and off as outdoor light level varies, the lights would be controlled control by one of two methods: 1. a photoswitch set to turn lights off when exterior daylight Typical lighting circuit illuminance is above 400 footcandles 1111IFEMI rm��n 2. an astronomical time clock which can be set to turn lights off 1 hour after sunrise and turn lights on 1 hour before sunset. This type of control can be accomplished at a central building control relay station or locally by zone. � A schematic of perimeter stepped daylighting control is shown here. Dimming Daylighting The glazing and shading alternatives will each be considered in conjunction with dimming daylighting controls. _ Anti The glazing alternatives are considered in conjunction with _ t from Window -� a �ar dimming daylighting controls. This strategy assumes that '� ' a 2 photosensors are linked to control devices that dim the of m gx lights within the daylight zone (a perimeter area with a 30% to 35R Day9t Ana 01 • c .o I t m depth 2 to 2.5 times the height of the window head). This '" ' �° S toot (torn window _ system would be transparent to the building occupant - °" g l0 9 because the dimming system would be designed to continuously maintain the design footcandle level. For the x A purposes of this model, the design level would be 50 fc. — "'Z ^' This strategy would require dimming electronic ballasts. Photosensors would be located at least one per compass orientation, at least one per floor. 10 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Incremental Construction Costs Please provide installed incremental construction costs for stepped and dimming daylighting systems. Use the worksheet at the beginning of this document to record your estimates. 0 is Incremental DayUghting controls Cost Dax0I Stepped Dayfighting in Circulation X D=02 Dimming Daylighting in Circulation X D ##03 Stepped Daylighting in Fitness & Performance X D*004 Dimming Daylighting in Fitness & Performance X D##05 Stepped Dayfighting in Lounges & Indoor Play X D#a06 Dimming Daylighting it Lounges & Indoor Play X D $#07 Stepped Daylighting in Community Rooms X • D#t# CB Dimming Daylighting in Community Rooms X DM#09 Stepped Daylighting in Private Offices X D#n10 Dimming Daylightinq in Private Offices X 11 Incremental Cost Analysis Eagan Community Center May 9, 2001 7026.81 Envelope Insulation Alternatives Strategy Objectives: To reduce the heating and cooling loads through increased wall and roof insulation levels. Strategy Descriptions: ER3W1 — R -30 roof insulation: Increase from the code level R -22 roof insulation to R -30 roof insulation.. ER2W2 - R -16 wall insulation: Increase from the code level R -11 wall insulation to R -16 wall insulation. ER2V1'3 - R -20 wall insulation: Increase from the code level R -11 wall insulation to R -20 wall insulation. Incremental Construction Costs Please provide incremental construction costs for those strategies not in the cost base using the worksheets at the beginning of this document. R Envelope Insulation AlternatAlternatives n Egg ER2t:1 R -11 wall insulation X R -22 R ER21':2 R -16 wall insulation R-11 R -11 R -11 ER2V ;3 R -20 wall insulation X R-11 R - X R -11 R -2 C 12 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Lighting Controls Strategy Objectives: To reduce lighting energy consumption by turning the lights off when a space is unoccupied or not fully occupied using occupancy sensors, time -clock controls, and'or multilevel switching. Since the occupancy sensor control of VAV boxes can use the same occupancy sensors as the lighting systems, this strategy is located in here for convenience. Construction documents need to clearly show locations of sensors and controlled lighting circuits and define performance requirements. Sensor application and installation should be per manufacturer's written recommendations. Contractor should be required to adjust time delay and directional settings to meet the needs of the space and instruct the maintenance staff as to proper procedures after all furnishings are in place. Maintenance staff should verify that these settings are appropriate once the building is occupied. Strategy Descriptions: Occupancy sensor control Conference rooms and training rooms (depending on size) will require one to two ceiling mount or high wall mounted sensors controlling all lights within the space. Wall switches will still be required for room darkening purposes. Offices can incorporate one wall box or ceiling mounted occupancy sensor per private office or one ceiling'wall mount sensor per 500 to 1,000 of open office area. All spaces should be designed per manufacturer's recommendations. Sensor should provide adequate coverage and sensitivity to sense minimal motion at main task area. To reduce "False -On's" the sensor should not view out a door and should have the option to have manual on and automatic off control. This strategy is applied to private office, storage /small restroom, and circulation spaces. Dual level and/or multilevel switching Applicable for spaces with variable light level requirements. Lights are switched such that two or more levels of output can be attained by manual switching. This strategy is applied to private office, gymnasium, community room, fimess'cardio, party 'craft, indoor play area. and performance/aerobic spaces. Strategic Switching Applicable for rooms with good available daylight. Lamps in each fixture are divided between two ballasts that are wired to separate switches. A distance of several feet separates the switches so that, when someone enters the room. it is likely that only one switch will be turned on. The second switch will be activated only when there is a distinct need for higher light levels. This strategy may be applicable for the community room spaces. Manual Dimming Applicable for spaces with variable light level requirements. Requires the use of electronic dimming ballasts with dimming switches. This strategy is applied to circulation (pre - function), community room, and teen center spaces. • 13 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Incremental Construction Costs Please provide incremental construction costs for the strategies not in the cost base using the cost base as the basis for comparison. Use the worksheet at the beginning of this document to record your estimates. iD �nurJnental Lighting Controls - _ cost LCPO1 Pnvate Office occup. sensor control X 15% 40% LCPO2 Private Office dual level switching X 15% 15% LCST1 Storage /Small Restroom Occupancy sensor X 50% 70% LCCI1 Cir / msc occup. sensor control X 5% 20% LCCI3 Circulation manual dimming X 25% 25% LCGY2 Gymnasium multilevel switching X 30% 30% LCDN2 Community Room dual level switching X 15% 15% LCDN3 Community Room manual dimming X 25% 25% LCFT2 Fitness /Cardio dual level switching X 15% 15% LCPC2 Party /Craft dual level switching X 15% 15% LCTC3 Teen Center manual dimming X 25% 25% LCIP2 Indoor Playarea dual level switching X 15% 15% LCPA2 PerfiAerobic dual level switching X 15% 15% 14 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Lighting Design Alternatives Strategy Objectives: To reduce the amount of installed lighting power by alternative design and illuminance levels. Strategy Description: The scope of the lighting design strategies identified below is limited to building spaces that have potential to have lower wattage than the code maximum. It is assumed that other areas (storage, restroom, circulation areas, etc.) will meet energy codes or prescriptive space standards; TWG will model all spaces based on design lighting documents received from the Design Team. LDPO1 — Direct system at 70 foot - candles I Utilizes direct parabolic or acrylic Lens troffer fixtures with F32T8 lamps and electronic ballasts with a 60 foot - candle average illumination level requirement for the various spaces. LDPO2 — Direct system at 50 foot - candles 50 -60 f` Utilizes direct parabolic or acrylic lens troffer fixtures with F32T8 lamps and electronic ballasts with a 50 foot - candle average illumination level requirement for the various spaces. LDPO3 — Indirect system at 50 foot - candles This is an indirect fixture system using F32T8 lamps and electronic ballasts, designed to provide an average of 50 foot - candles of indirect illumination within the space. The indirect lighting system provides a uniform distribution 50 Fc and low contrast light. This strategy requires a ceiling reflectance of at least • 75 %. LDPO4 is a task' ambient system using an indirect fixture system comprised of F32T8 lamps and electronic ballasts to provide ambient light at 25 to 30 fc. Task lighting assumes 2 - 20 W task lights per work station. Open office work Task Task station density is assumed to be one station per 125 s.f of gross open office o 0 area. 25 to3D Fc LDPO5 — Direct/indirect with 85% reflective ceiling at 45 foot - candles (Open offices, private offices and conference rooms) Utilizes a direct/indirect fixture system with F32T8 lamps and electronic ballasts, designed to provide an average of 35 to 40 foot - candles (maintained) qs Fc within the space. The indirect portion of the lighting system provides a -- uniform distribution and low contrast light. This strategy requires a ceiling reflectance of about 85 %. • LDxxl — Lighting design at levels 10% better than code LDxx2 — Lighting design at levels 20% better than code The key to these lighting design strategies' energy savings is found in the design lighting energy densities (Watts per square foot). Please refer to the following table, which highlights the assumed lighting energy densities for each of the selected strategies. The listed code Watts per square foot is based our assumption of the primary space utilization and consulting the Minnesota Energy Code. If another code number would be more accurate due to a more representative utilization please comment accordingly. 15 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Incremental Construction Costs Please note which, if any, of these strategies are included in the cost base. Please provide incremental construction costs for the strategies not in the cost base using the cost base as the basis for comparison. Use the worksheet at the beginning of this document to record your estimates. Ling 'Design Alternatives ,- .. wM Ell EMI LEV Illall Strategy LDPO1 Private office direct system at 70 fc X 12' x 14' LDPO2 Private office direct system at 50 fc X 12' x 14' 2.00 2.00 2.00 - 2.75 LDPO3 Private office Indirect system at 50 fc X 12' x 14' 2.00 2 2.00.00 - 2 . Private office Task/ Ambient at 25 to 30 fc .2.220 0 LDPO4 ambient; 0.2 to 0.3 W /sf Task. LDPO5 Private office dire�ndir, 85% reflct ceiling, 45 fc X 12' x 14' 2.00 1.35 - 1.55 LDGY1 Gym 10% better than code 10' x 0' 1 .00 0 .80. 1.00 90' 1 LDGY2 Gym 20% better than code X 60' x 90' 0.70 - 1.00 X 60'x90' 1.00 0.70 - .39 LDFT 1 Fitness/Cardio 10 °i; better than code X 100' x 40' 1.43 1 1.11 1 1.19 - 1.39 LDFT2 Fitness/Cardio 20% better than code X 100' x 40' 1.43 1.04 - 1.24 LDPA1 Perf /Aerobic 10% better than code X 40' x 40' 1.51 1.26 - 1.46 LDPA2 Pert /Aerobic 20% better thar. code X 40' x 40' 1.51 1.11 - 1.31 LDTC1 Teen Center 10% better than code X LDTC2 Teen Center 20% better than code 25' x 25 0.60 0.38 - 0.54 LDPC1 Party/Craft 10% better than code X 50' x 25' 0.55 0.40 - 0.60 X 50' x 25' 0.55 0.3 - 0.50 LDPC2 Party,�Craft 20% better than code X LDIP1 Indoor Playarea 10% better than code 50' x 50' 0.53 0.38 - 0.54 LDIP2 Indoor Playarea 20% better than code X 50' x 50' 0.53 0.32 - 0.52 X 50' x 50' 0.53 0.32.0.52 • 16 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Cooling and Heating Efficiency Strategy Objectives: To assess the energy savings associated with cooling system efficiency improvements. Cooling Efficiency Strategies Change from a code level air - cooled chiller to the equipment as described in the table below. Heating Efficiency Change from a code level boiler to boilers as described in the table below. Incremental Construction Costs Please provide incremental construction costs for the strategies listed below in the "Incremental Cost" column using the cost base as the basis of comparison. Not all efficiencies may be available for all unit sizes. Where strategy level efficiencies are not available, please submit costs with efficiencies as close as possible to those listed here, and list the actual efficiency along with the cost estimates. Also, please indicate which alternative most closely matches your cost base system for cooling. II lEI 511 C inceemental oae G°st Ecffiuencr Ioim - MCH36 Cndle•. 0% decr Kw /ton, air cooled X 1.41 1.41 over 150 MCH01 Chiller, 5% decr KW/ton, air cooled X 1.41 1.34 over 150 MCH02 Chiller, 10% decr KW/ton, air cooled X 1.41 1.27 over 150 MCH03 Chiller. 15% decr KW /ton, air cooled X 1.41 1.20 over 150 MCH07 Chiller, 0% decr KW /ton, wtr cooled X 0.73 0.73 All MCH04 Chiller, 10% decr KW/ton, wtr cooled X 0.73 0.66 All MCH05 Chiller, 20% decr KW /ton, wtr cooled X 0.73 0.58 All MCH06 Chiller 30 °, decr KW/ton, wtr cooled X 0.73 0.51 All Code IIM Heating Efficiency :'' :< - -_ Eii i„ Efficiency MH" 01 Gas bode* 83% eft c X 80% 83% MHT03 Gas boiler w /condensing technology X 80% 83% 1 7 Incremental Cost Analysis May 9, 2001 Eagan Community Center 7026.81 Motor Efficiency Motor Efficiency Strategy Description: MMT01 - Premium efficiency supply /return fan motors _ This strategy includes replacing the code level supply /return fan motors with "premium efficiency" motors, which are approximately 2.5% more efficient than Code levels. Please refer to the attached chart that shows Minnesota Energy Code and strategy "Premium" efficiency motor requirements. Incremental Construction Costs Please provide incremental costs for the following strategies. Use the worksheet at the beginning of this document to record your estimates. torfro3 Premium eff supply /return fan motors X MMT04 Premium eff pump motors X Motor Code open Code closed Premium open Size 3600 1800 1200 900 3600 1800 1200 900 3600 1800 1200 900 HP RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM RPM 1 82.5 77.0 72.0 80.5 75.5 72.0 85.0 1.5 80.0 82.5 82.5 75.5 78.5 81.5 82.5 75.5 67.5 87.5 2 82.5 82.5 84.0 85.5 81.5 82.5 82.5 82.5 87.5 87.5 3 82.5 86.5 85.5 86.5 82.5 84.0 84.0 81.5 90.2 89.5 5 85.5 66.5 86.5 87.5 85.5 85.5 85.5 84.0 89.5 89.5 89.5 7.5 85.5 88.5 88.5 88.5 85.5 87.5 87.5 85.5 89.5 91.7 91.7 10 87.5 88.5 90.2 89.5 87.5 87.5 87.5 87.5 90.2 91.7 91.7 15 89.5 90.2 89.5 89.5 87.5 88.5 89.5 88.5 91.0 93.0 92 4 20 90.2 91.0 90 2 90.2 88.5 90.2 89.5 89.5 92.4 93 6 92 4 92 4 25 91.0 91.7 91.0 90.2 89.5 91.0 90.2 69.5 93.0 94.1 93.6 92 4 30 91.0 91 7 91.7 91.0 89 5 91.0 91.0 90.2 93.6 94 1 93.6 93.6 40 91 7 92 4 91.7 90.2 90 2 91.7 91.7 90.2 93.6 94.5 94 1 93.6 50 91.7 92 4 91.7 91.7 90.2 92 4 91 7 91.0 93.0 946 94.1 93.6 60 93.0 93 0 92.4 92.4 91.7 93.0 91.7 91 7 93.6 95.4 95.0 94.1 75 93.0 93.6 93.0 93.6 92.4 93.0 93.0 93.0 94.5 95 4 95.4 94.5 100 93.0 93.6 93.6 93.6 93.0 93.6 93.0 93.0 94.5 96.2 95 4 95 0 125 93 0 93 6 93.6 93.6 93.0 93.6 93 0 93.6 95.0 95 4 95 4 95.0 150 93 6 94 1 93 6 93.6 93.0 94.1 94 1 93.6 200 93 6 94 1 94.1 93 6 94 1 94 5 94.1 94 1 • 18 Incremental Cost Analysis May 9. 2001 Eagan Community Center 7026.81 Load Responsive Equipment and Operation Strategy Objectives: To evaluate mechanical equipment and controls that are capable of responding to hourly variations of the building's heating, cooling and ventilation loads. -n Strategy Description: Change from code base condition to variable speed drives on fans and /or pumps. For supply and return air fans, the code level condition is inlet vane control. For pumps and cooling tower fans, the code level is constant speed. NILRO2 — Variable speed drives on supply air fans This strategy includes replacing the constant speed drives /inlet vane control on the supply air fans with variable speed drives. MLRO3 — Variable speed drives on heating pumps This strategy includes replacing the constant speed drives on the heating pumps with variable speed drives. Incremental Construction Costs Since VSD's on the supply air fans are included in the cost base no incremental construction cost is required. Please provide cost estimates for the heating pump VSD using the worksheet at the beginning of this document. rw.t.aer Responsive Respe Equipment and operation B cost code level sz VSD s on sup:', art fans X inlet vanes VSD MLRO3 VSD on htp pump X const. speed VSD 19 Incremental Cost Analysis May 9, 2001 • Eagan Community Center 7026.81 Conditioning of Outside Air Strategy Objectives: To reduce the amount of energy required to condition and circulate outside air, by reducing the volume of air based on occupancy load or by recovery of energy from the building exhaust air. Strategy Description: MOA02 — CO control of outside air: This strategy reduces outside air based on the output of CO sensors, typically located in the return air ducts. The CO sensor control level should be set to maintain a MINIMUM level of CO2 in the return air stream, typically this can be set between 700 and 1000 ppm (parts per million). If the CO in the return air stream falls BELOW 700 ppm, then the outside air dampers are adjusted such that less outside air is brought into the building. Careful consideration must be given to outside air distribution in the building (in terms of HVAC zoning requirements) as well as verify compliance with ASHRAE 62- 1989/99 and other applicable codes and standards. MHRS1 — Sensible Heat Recovery: This strategy represents recovery of heat energy from the exhaust/relief air stream to the unconditioned ventilation air stream. This strategy shall be accomplished via a rotary (heat - wheel) air -to -air heat exchanger. The strategy shall include controls that disable the heat wheel when heat recovery is not advantageous; however, an air -side bypass around the heat wheels is not required. MHRT1 — Total heat recovery: This strategy is the same as the sensible heat recovery strategy, but with a latent heat recovery component added, usually in the form of a desiccant heat recovery wheel. Incremental Construction Costs Please note which, if any, of these strategies are included in the cost base and provide an incremental construction cost for any strategies that are not using the worksheets provided at the beginning of this document. Incremental Conditioning of Outside Ai — cast code Lama 1 Lewd MCAC2 CO2 cor troy. o' o,ns■oe au X No Conn' CO2 ca' MHRS1 Sensible Heat Recovery X No Control 60% effic MHRT1 Total Heat Recovery X No Control 60' ell: • 20 MEMO city of eagan TO: AIRPORT RELATIONS COMMISSION MEMBERS WASTE REDUCTION AND RECYCLING ADVISORY COMMISSION MEMBERS FROM: CITY ADMINISTRATOR HEDGES DATE: MAY 24, 2001 SUBJECT: JOINT COMMISSION MEETING/TUESDAY, MAY 29, 2001 The Eagan City Council is looking forward to meeting with the Airport Relations Commission and the Waste Reduction and Recycling Advisory Commission next Tuesday, May 29, 2001. The City Council has made it a priority to hold joint commission meetings with each advisory commission to improve communications and have an opportunity for open dialogue about issues of mutual concern or interest. Due to an unfortunate miscommunication, we regret the late notice about this meeting and are pleased that so many of you will join us. The attached agenda will serve as a general guideline for how the meeting will proceed and does not specify particular topics of conversation to allow for maximum flexibility for each commission. Again, we apologize for the late notice and look forward to seeing you on Tuesday. \ - City Administrator Cc: Honorable Mayor and City Councilmembers Jamie Verbrugge, Assistant City Administrator Joanna Foote, Communications Coordinator