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Home My WebLink AboutASRC-BRW-RSA Browerville Fire Station 2012-EE1 Richard S. Armstrong, PE, LLC Mechanical/Electrical Engineer Comprehensive Energy Audit of Browerville Fire Station (Barrow Fire Station #2) Project # ASRC -BRW -RSA -02 Prepared for: The North Slope Borough August 31, 2011 Prepared by: Ric hard S. Armstrong, PE, LLC 2321 Merrill Field Drive, C-6 Anchorage, Ak 99501 and Jeff Fondy, CEA # 1625 Energy Audits of Alaska P.O. Box 220215 Anchorage, AK 98522 2 TABLE OF CONTENTS Signature Page 3 1. Executive Summary 5 2. Audit and Analysis Background 8 3. Acknowledgements 9 4. Building Description & Function 10 5. Historic Energy Consumption 11 6. Interactive Effects of Projects 12 7. Loan Program 12 Appendix A: Photos 13 Appendix B: AkWarm-C Report 15 Appendix C: Equipment Sched ules 27 Appendix D: Building Plan 31 Appendix E: Lighting Plan 33 Appendix F: Mechanical Schematic 36 09/01/11 4 REPORT DISCLAIMERS The information contained in this report, including any attachments, is intended solely for use by the building owner and the AHFC. No others are authorized to disclose, copy, distribute or retain this report, in whole or part, without written authorization from Richard S. Armstrong, PE, LLC, 2321 Merrill Field Drive, C-6, Anchorage, Ak 99501. Additionally, this report contains recommendations that, in the opinion of the auditor, will cause the owner to realize energy savings over time. All recommendations must be designed by a registered engineer, licensed in the State of Alaska, in the appropriate discipline. Lighting recommendations should all be first analyzed through a thorough lighting analysis to assure that the recommended lighting upgrades will comply with State of Alaska Statue as well as IES recommendations. Payback periods may vary from those forecast due to the uncertainty of the final installed design, configuration, equipment selected, and installation costs of recommended Energy Efficiency Measures (EEMs), or the operating schedules and maintenance provided by the owner. Furthermore, EEMs are typically interactive, so implementation of one EEM may impact the cost savings from another EEM. Neither the auditor, Richard S. Armstrong, PE, LLC, AHFC, or any other party involved in preparation of this report accepts liability for financial loss due to EEMs that fail to meet the forecasted payback periods. This audit meets the criteria of an Investment Grade Audit (IGA) per the Association of Energy Engineers definition, and is valid for one year. The life of the IGA may be extended on a case-by-case basis, at the discretion of the AHFC. IGA’s are the property of the State, and may be incorporated into A k W a r m -C, the Alaska Energy Data Inventory (ARIS), or other state and/or public information system. 5 1. Executive Summary This Comprehensive Energy Audit is performed in connection with AHFC’s Retrofit Energy Assessment for Loans (REAL) program. Subject Building: Barrow Fire Station #2 (Browerville Fire Station) 4374 Laura Madison Barrow, AK 99723 Building Owner: North Slope Borough (NSB) Building contact: Mark Ahsoak, Fire Chief The site visit to subject building occurred on July 18th. The subject building is estimated to have been originally constructed in 1978. It underwent significant renovations to the lighting, mechanical and ventilation systems in 1997. The firs t floor of the facility contains vehicle storage bays, offices and training rooms. The second floor has bedrooms, a kitchen and bathrooms for itinerant fire department personnel in town for training. Considering its age, the building is in average to abo ve average condition. The 2009 and 2010 annual utility energy consumption reported by BUECI and collected as benchmark data by Nortec Engineering is displayed in Table 1 below: A benchmark measure of energy use relative to other similar function buildings in the area is the Energy Use Index (EUI), which takes the total annual energy used by the facility divided by the square footage area of the building, for a value expressed in terms of kBTU/SF. This number can then be compared to other buildings to see if it is average, higher or lower than similar buildings in the area. Likewise, the Energy Cost Index (ECI) is the cost of all energy used by the building expressed in $/SF of building area. The comparative values for the subject building are listed in Table 2 below: Table 1 2009 2010 Consumption Cost Consumption Cost Electricity - kWh 134,560 $ 14,328 158,250 $ 16,820 Natural Gas - CCF 20,287 $ 6,235 20,366 $ 6,258 Totals $ 20,563 $ 23,078 6 Table 2 Subject Building Barrow Average Barrow Fire Station #2 Energy Use Index (EUI) - kBTU/SF 177 211 175 Energy Cost Index (ECI) - $/SF $1.42 $1.68 $1.51 Various Energy Efficiency Measures (EEMs) have been analyzed for this building to determine if they would be applicable for energy savings with reasonably good payback periods. EEMs are recommended for reasons including: 1.) they have a payback period of less than 8 years, 2.) for code compliance, 3.) life cycle replacement or 4.) reasons pertaining to operations and maintenance. For example, where a lighting upgrade is recommended from T-12 lamps with magnetic ballasts to T-8 lamps with electronic ballasts, then the entire facility should be re-lamped and re-ballasted to maintain a standard lighting parts inventory, regardless of the payback. An individual storage room that is infrequently used may not show a very good payback for a lighting upgrade, but consistency and ease of maintenance dictates a total upgrade. Specific EEMs recommended for this facility are detailed in the attached AkWarm Energy Audit Report. Each EEM includes payback times, estimated installation costs and estimated energy savings. The following list summarizes the cost and savings of the higher priority EEM’s included in this audit: Lighting Upgrades: In general, this facility has already been upgraded to T8 lamps with electronic ballasts. Replacing the standard 32W lamps with high output, high efficiency 28W bulbs saves 12% in power consumption with only a 4% reduction in lighting levels. Lighting Control Upgrades: Many lights were found to be left on with nobody in the space. Occupant controls can sense the presence of workers, and turn the lights on. The controller can then turn the lights off after a programmed time period of no occupancy. These controls can reduce total kWh consumption for the lighting in the order of 3090%, depending on the amount of time the lights are manually left on. Exterior Lighting Upgrades: The exterior high pressure sodium lights operate during periods of darkness, which is about half of a 7 year. It is estimated that the use of LED exterior lights can reduce the power consumption by 60%. Plumbing fixtures: All toilets and faucets should be retrofitted or be replaced with fixtures that have proximity sensing on/off controls. This audit does not include water usage and AKWarm does not allow for the modeling of this, but a typical faucet retrofit will result in 30% water savings and will payback in under 3 years. Installing 2-level flush toilets (.9 gallons per flush for liquids, 1.6 gallons for solids) typically saves 33% water, and pays back in under 2 years. Waterless urinals save 100% of water used, and typically pay back within 3 years. Setback Thermostats in Office and Vehicle storage bays. The thermostats were found to be set to 78 degrees F, 24/7. It is recommended that lockable setback thermostats be installed and programmed for occupied temperatures of 72 deg F, and unoccupied temperatures of 55 deg F. This has an estimated payback of less than 6 months. Headbolt Heater Controls: There are retrofit headbolt heater receptacles that have microprocessors to cycle the power on and off in response to the outside air temperature. This is estimated to have a payback of less than 1 year. In addition to EEMs, various Energy Conservation Measures (ECMs) are recommended since they are policies or procedures that are followed by management and employees that require no capital outlay. Examples of recommended ECMs for this facility include: 1. Turning lights off when leaving a room that is not controlled by an occupancy sensor. 2. Keeping roll-up doors closed as much as possible. All man-doors, roll-up doors and windows should be properly maintained and adjusted to close and function properly. 3. Turn off computers, printers, faxes, etc. when leaving the office. The 39 recommendations in the detailed report are estimated to save $8,380/year, with an installed, replacement cost of $36,156; this is a payback of 4.3 years. These figures do not include design or CA services, but overall they indicate a cost effective energy savings program. 8 2. Audit and Analysis Background a. Program Description: This audit included services to identify, develop, and evaluate energy efficiency measures for the subject building. The scope of this project included evaluating the building shell, lighting, other electrical systems, and heating, ventilating, and air conditioning (HVAC) equipment. b. Audit Description and Methodology: Preliminary audit information was gathered in preparation for the site survey, including benchmark utility consumption data, floor and lighting plans, and equipment schedules, where available. A site visit is then performed to inventory and evaluate the actual building condition, including: i. Building envelope (walls, doors, windows, etc) ii. Heating, ventilating, and air conditioning iii. Lighting systems and controls iv. Building specific equipment v. Plumbing Systems c. Benchmark Utility Data Validation: Benchmark utility data provided through AHFC’s initial phase of their REAL program is validated, confirming that electrical and gas meter numbers on the subject building match the meters from which the energy consumption and cost data were collected. In the event that the data is inaccurate, new benchmark utility data is obtained. d. Method of Analysis: The information gathered prior to the site visit and at the site visit is entered into A k W a r m -C, an energy modeling software program developed for Alaska Housing Finance Corporation (AHFC) specifically to identify forecasted energy consumption which can be compared to actual energy consumption. AkWarm -C also has some pre-programmed EEM retrofit options that can be analyzed with projected energy savings based on occupancy schedules, utility rates, building construction type, building function, existing conditions, and climatic data uploaded to the program based on the zip code of the building. When new equipment is proposed, energy consumption is calculated based on manufacturer’s cataloged information. Energy cost savings are calculated based on the historical energy costs for the building. Installation costs include the labor and equipment required to implement an EEM retrofit , but design and construction management costs are excluded. Costs are derived from one or more of the following: Means Cost Data, industry publications, experience of the auditor, local contractors and equipment suppliers. Haakensen Electric, in Anchorage was consulted for some of the lighting retrofit costs. Maintenance savings are calculated, where applicable, and are added to the energy savings for each EEM. 9 The costs and savings are considered and a simple payback period and return on investment (ROI) is calculated. The simple payback period is based on the number of years that it takes for the savings to pay back the net installation cost (Net Installation costs divided by Net Savings.) A simple life-time calculation is shown for each EEM. The life-time for each EEM is estimated based on the typical life of the equipment being replaced or altered. The energy savings is extrapolated throughout the life-time of the EEM. The total energy savings is calculated as the total life-time multiplied by the yearly savings. e. Limitations of the Study: All results are dependent on the quality of input data provided, and may only act as an approximation. In some instances, several methods may achieve the identified savings. This report is not intended as a final design document. A design professional, licensed to practice in Alaska and in the appropriate discipline, who is following the recommendations, shall accept full responsibility and liability for the results. Budgetary estimates for engineering and design of these projects in not included in the cost estimate for each EEM recommendation, but these costs can be approximated at 15% of the cost of the work. 3. Acknowledgements: We wish to acknowledge the help of numerous individuals who have contributed information that was used to prepare this report, including: a. Alaska Housing Finance Corporation (Grantor): AHFC provided the grant funds, contracting agreements, guidelines, and technical direction for providing the audits. AHFC reviewed and approved the final short list of buildings to be audited based on the recommendation of the Technical Service Provider (TSP). b. North Slope Borough (Owner): The NSB provided building sizing information, two years energy billing data, building schedules and functions, as well as building age. c. Benchmark Utility Data Validation: Benchmark utility data provided through AHFC’s initial phase of their REAL program is validated, confirming that electrical and gas meter numbers on the subject building match the meters from which the energy consumption and cost data were collected. In the event that the data is inaccurate, new benchmark utility data is obtained. d. Nortech Engineering (Benchmark TSP): Nortech Engineering compiled the data received from the NSB and entered that data into the statewide building database, called the Alaska Retrofit Information System (ARIS). 10 e. Richard S. Armstrong, PE, LLC (Audit TSP): This is the TSP who was awarded the projects in the Arctic Slope Regional Corporation, Bering Straits area, and the Nana area. The firm gathered all relevant benchmark information provided to them by Nortech, cataloged which buildings would have the greatest potential payback, and prioritized buildings to be audited based on numerous factors, including the Energy Use Index (EUI), the Energy Cost Index (ECI), the age of the building, the size of the building, the location of the building, the function of the building, and the availability of plans for the building. They also trained their selected sub-contracted auditors, assigned auditors to the selected buildings, and performed quality control reviews of the resulting audits. They prepared a listing of potential EEMs that each auditor must consider, as well as the potential EEMs that the individual auditor may notice in the course of his audit. Richard S. Armstrong, PE, LLC also performed some of the audits to assure current knowledge of existing conditions. f. Energy Audits of Alaska (energy auditor): This firm has been selected to provide audits under this contract in addition to RSA Engineering. The firm has two mechanical engineers, certified as energy auditors or professional engineers and has also received additional training from Richard S. Armstrong, PE, LLC to acquire further specific information regarding audit requirements and potential EEM applications. 4. Building Description and Function: The site visit and survey of subject building occurred on July 18th. The building consists of 14,496 square feet of space on two stories. 2390 square feet of which is vehicle bay, the remaining area is office space and training rooms on the first floor and bedrooms and a kitchen on the second floor. The building is used by the Barrow Fire Department for staff training, vehicle storage, washing and light maintenance, and for housing of traveling Fire Department personnel visiting Barrow. An inspection of the exterior and interior of the building revealed that the overall condition of the building is in average to above average condition. Original building plans were not available. It appears that the original building was constructed in 1978 on pilings, using 2x6 construction, with T -111 plywood exterior siding. A major renovation on the plumbing, electrical and lighting, and mechanical systems was performed in 1997. Drawings were available for this renovation. Benchmark utility data was provided through AHFC by Nortech Engineering. Building details are as follows: a. Heating System: Heat is provided by (3) Weil McLain, 70% efficient gas fired boilers rated at 427, 245 and 245 MBH and a Rupp 950 MBH, gas 11 fired make-up air unit. The 427MBH boiler and the Rupp MAU were added in 1997, the age of the (2) existing 245 MBH boilers is unknown. Office and living quarters are supplied via hydronic baseboard heaters and horizontal unit heaters. The vehicle storage bay is served by (2) vertical hydronic unit heaters and the MAU. There are additional radiant panels in storage areas and lavatories. Zone VAV’s are controlled by a standard 24 volt thermostat. b. Ventilation System: The living quarters are ventilated with a 1600CFM Pace air handler, the balance of the building is served by a second Pace air handler rated at 5120 CFM. The vehicle bay used (2) Greenhek 4000 CFM exhaust fans and the common room and training room by 328 CFM units. Each toilet room has an 73 CFM exhaust fan. c. Plumbing Fixtures: There are two lavatories with toilets and two bathrooms with lav’s, toilets and bathtubs or steam shower Based on their age, all toilets appear to be 1.6 gpf models. The toilets and faucets do not have proximity sensing devices. d. Domestic Hot Water: Hot water is generated using an 80 gallon, Amtrol 240 GPH unit fed by a glycol coil, and located in the boiler room. e. Appliances: There are a clothes washer and clothes dryer on site, (2) full size refrigerators, (2) vending machines, dishwasher, microwave and coffee maker. There are 6 personal computers in use. The appliances appear to be fairly new. f. Head Bolt Heaters: There are (15) duplex head bolt heaters on the south side of the building. g. Interior Lighting: Each bedroom has (2) incandescent lamps; all other internal lighting is by fluorescent T8 lamps and standard electronic ballasts. h. Exterior Lighting: Exteri or lighting consists of (6) 70W -100W Metal Halide wall packs, and (4) 100W Metal Halide walkway lights. 5. Historic Energy Consumption: Energy consumption is modeled within the AkW arm -C program. The program only analyzes 12 months of data, so where 24 months of data are available, the data is averaged to provide more accuracy. The energy consumption data is presented and graphed in the attached AkW arm -C program results. Energy consumption was analyzed using two factors: the Energy Cost Index (ECI) and the Energy Use Index (ECU). The energy cost index takes the average cost of gas and electrical energy over the surveyed period of time (typically 2 years) and averages the cost, divided by the square footage of the building. The ECI for this building is $1.51/square foot, the average ECI for all of the benchmarked buildings in Barrow is $1.68/square foot, and as a comparison, the ECI for Barrow Fire Station #1, an older building, is $1.92/SF. The energy use index (EUI) is the total average electrical and heating energy consumption per year expressed in thousands of BTUs/SF. The EUI for this building is 175 kBTU/SF; the average EUI for all of the benchmarked buildings in 12 Barrow is 207 kBTU/SF, and the Barrow Fire Station #1 has an EUI of 211 kBTU/SF. 6. Interactive Effects of Projects: The AkWarm-C program calculates savings assuming that all recommended EEM are implemented. If some EEMs are not implemented, savings for the remaining EEMs will be affected, in some cases positively, and in others, negatively. For example, if the fan motors are not replaced with premium efficiency motors, then the savings for the project to install variable speed drives (VFDs) on the fans will be increased. In general, all projects were evaluated sequentially so that energy savings associated with one EEM would not be attributed to another EEM as well. For example, the night setback EEM was analyzed using the fan and heating load profile that will be achieved after installation of the VFD project is completed. By modeling the recommended projects sequentially, the analysis accounts for interactive effects between the EEMs and does not “double count” savings. Interior lighting, plug loads, facility equipment, and occupants generate heat within the building. When the building is in cooling mode, these contribute to the overall cooling demands of the building; therefore lighting efficiency improvements will reduce cooling requirements on air conditioned buildings. Conversely, lighting efficiency improvements are anticipated to increase heating requirements slightly. Heating penalties are included in the lighting project analysis that is performed by AkWarm-C. 7. Loan Program: The Alaska Housing Finance Corporation (AHFC) Alaska Energy Efficiency Revolving Loan Fund (AEERLF) is a State of Alaska program enacted by the Alaska Sustainable Energy Act (senate Bill 220, A.S. 18.56.855, “Energy Efficiency Revolving Loan Fund). The AEERLF will provide loans for energy efficiency retrofits to public facilities via the Retrofit Energy Assessment for Loan System (REAL). As defined in 15 AAC 155.605, the program may finance energy efficiency improvements to buildings owned by: a. Regional educational attendance areas; b. Municipal governments, including political subdivisions of municipal governments; c. The University of Alaska; d. Political subdivisions of the State of Alaska, or e. The State of Alaska Native corporations, tribal entities, and subsidiaries of the federal government are not eligible for loans under this program 13 Appendix A Photos Vehicle wash bay; vertical hydronic unit heater and MAU shown Typical of the 8 bedrooms (currently used for storage) 14 Appendix A Photos Boiler room; new boiler is third on right, generator is far right Rear entry to day room, living quarters above Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 1 ENERGY AUDIT REPORT – PROJECT SUMMARY – Created 9/2/2011 2:36 PM General Project Information PROJECT INFORMATION AUDITOR INFORMATION Building: NSB Fire Department Auditor Company: Address: Barrow Alaska Auditor Name: Jeff Fondy/Jim Fowler/Richard Armstrong City: Barrow Auditor Address: PO Box 220215 Anchorage, AK 99522 Client Name: Mark Ahsoak Client Address: PO Box 849 Auditor Phone: (907) 223‐0717 Auditor FAX: Client Phone: (907) 852‐0235 Auditor Comment: Client FAX: Design Data Building Area: 14,496 square feet Design Heating Load: Design Loss at Space: 1,506,066 Btu/hour with Distribution Losses: 1,673,406 Btu/hour Plant Input Rating assuming 82.0% Plant Efficiency and 25% Safety Margin: 2,550,924 Btu/hour Note: Additional Capacity should be added for DHW load, if served. Typical Occupancy: 8 people Design Indoor Temperature: 70 deg F (building average) Actual City: Barrow Design Outdoor Temperature: ‐41 deg F Weather/Fuel City: Barrow Heating Degree Days: 20,370 deg F‐days Utility Information Electric Utility: Barrow Utilities ‐ elec ‐ Commercial ‐ Sm Natural Gas Provider: Barrow Utilities & Electric‐gas ‐ Commercial ‐ Sm Average Annual Cost/kWh: $0.106/kWh Average Annual Cost/ccf: $0.306/ccf Annual Energy Cost Estimate Description Space Heating Space Cooling Water Heating Lighting Other Electrica l Cooking Clothes Drying Ventilation Fans Service Fees Total Cost Existing Building $15,296 $0 $336 $13,144 $3,928 $275 $440 $2,172 $409 $37,000 With Proposed Retrofits $13,380 $0 $341 $8,352 $2,588 $275 $440 $2,172 $409 $28,621 SAVINGS $1,916 $0 ‐$5 $4,792 $1,340 $0 $0 $0 $0 $8,380 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 2 $0 $10,000 $20,000 $30,000 $40,000 Existing Retrofit Service Fees Ventilation and Fans Space Heating Refrigeration Other Electrical Lighting Domestic Hot Water Cooking Clothes Drying Annual Energy Costs by End Use Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 3 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 1 Setback Thermostat: Browerville 2nd Floor Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Browerville 2nd Floor space. $1,229 $200 78.10 0.2 2 Setback Thermostat: First Floor Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the First Floor space. $812 $200 51.59 0.2 3 Setback Thermostat: Browerville Fire Department first floor Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Browerville Fire Department first floor space. $397 $200 25.23 0.5 4 Other Electrical: Head bolt heaters Replace with 13 Head bolt heaters and Improve Other Controls $1,340 $1,951 6.00 1.5 5 Refrigeration: Vending Machine Replace with 2 Vending Machine and Add new Seasonal Shutdown $291 $400 4.63 1.4 6 Lighting: Room 126 Replace with 9 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $147 $220 4.27 1.5 7 Lighting: Utility 123,122,121 Replace with 5 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $90 $140 4.12 1.6 8 Lighting: Hallway Adjacent Kitchen Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $45 $70 4.12 1.6 9 Lighting: Storage Utility Room‐typ of room 119/127 Replace with 16 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $249 $455 3.49 1.8 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 4 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 10 Lighting: Office 112, Hall 111 Replace with 8 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $125 $230 3.45 1.8 11 Lighting: Storage 129/130 Replace with 4 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $62 $140 2.83 2.2 12 Lighting: Bay 115,118 Replace with 40 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $1,027 $2,400 2.72 2.3 13 Lighting: Boiler Room 114 Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $47 $130 2.29 2.8 14 Lighting: Room, 214 Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $36 $120 1.92 3.3 15 Lighting: Second Floor Lighting, Typ of Rooms 201,202,203,209,211 ,212,215,216,217 (all rooms combined) Replace with 32 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Add new Occupancy Sensor $498 $1,820 1.74 3.7 16 Lighting: Room 103/104 Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $31 $120 1.65 3.9 17 Lighting: Interior Corridor 105 and adjacent Add new Occupancy Sensor $49 $200 1.56 4.1 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 5 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 18 Lighting: Room 218 Replace with 6 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic $14 $60 1.52 4.2 19 Lighting: Bay 116/117 Replace with 18 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $377 $1,680 1.43 4.5 20 Lighting: Bathrooms/Closets 106A,107,108,109,1 10 Replace with 7 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $126 $570 1.42 4.5 21 Lighting: Kitchen 120 ‐ Stairwell 128 Replace with 5 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $70 $350 1.28 5 22 Lighting: Exterior Door Lighting "G" Replace with 4 LED 100W Module StdElectronic $400 $5,400 1.14 13.5 23 Lighting: Room 218 Remove Manual Switching and Add new Occupancy Sensor $18 $100 1.12 5.7 24 Lighting: Typ of rooms 213,236,hallway, 230,229 Replace with 19 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Controls retrofit $121 $690 1.12 5.7 25 Lighting: Bedroom nightstand lights Replace with 16 FLUOR CFL, A Lamp 20W $27 $160 1.09 5.9 26 Lighting: Typical of rooms 219 220 221 222 223 225 Replace with 7 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Add new Occupancy Sensor $109 $670 1.04 6.1 27 Lighting: Room 228 Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic $3 $20 0.94 6.8 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 6 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 28 Lighting: Wash Down Replace with 21 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $296 $2,220 0.85 7.5 29 Lighting: utility 124 Replace with FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $16 $120 0.83 7.7 30 Lighting: Room 233 Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $14 $130 0.67 9.5 31 Lighting: Office 106 Replace with 9 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $24 $280 0.55 11.5 32 Lighting: Room 231,232 Replace with 4 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $18 $240 0.49 13.1 33 Lighting: Exterior 9" Metal Halide ‐ Drawing"H" ‐ Near Exits Replace with 4 LED 25W Module StdElectronic $121 $5,400 0.35 44.5 34 Lighting: Top of Stairwell 128 Replace with 2 FLUOR T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $16 $320 0.32 19.9 35 Lighting: Stairwell 102 Replace with FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Add new Occupancy Sensor $16 $320 0.31 20.5 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 7 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 36 Lighting: Bathrooms 226,227 Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $9 $230 0.26 24.6 37 Lighting: Exterior Lighting "G1" Replace with 2 LED 72W Module StdElectronic $36 $2,700 0.20 75.8 38 Lighting: Entry Exterior Lighting Replace with 4 LED 72W Module StdElectronic $71 $5,400 0.20 75.8 39 Lighting: Room 228 Remove Manual Switching and Add new Occupancy Sensor $2 $100 0.16 40.8 TOTAL $8,380 $36,156 2.15 4.3 ENERGY AUDIT REPORT – ENERGY EFFICIENT RECOMMENDATIONS 1. Building Envelope Insulation Rank Location Existing Type/R-Value Recommendation Type/R- Value Installed Cost Annual Energy Savings Exterior Doors – Replacement Rank Location Size/Type/Condition Recommendation Installed Cost Annual Energy Savings Windows and Glass Doors – Replacement Rank Location Size/Type/Condition Recommendation Installed Cost Annual Energy Savings Air Leakage Rank Location Estimated Air Leakage Recommended Air Leakage Target Installed Cost Annual Energy Savings 2. Mechanical Equipment Mechanical Rank Recommendation Installed Cost Annual Energy Savings Setback Thermostat Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 8 Rank Location Size/Type/Condition Recommendation Installed Cost Annual Energy Savings 1 Browerville 2nd Floor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Browerville 2nd Floor space. $200 $1,229 2 First Floor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the First Floor space. $200 $812 3 Browerville Fire Department first floor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Browerville Fire Department first floor space. $200 $397 Ventilation Rank Recommendation Cost Annual Energy Savings 3. Appliances and Lighting Lighting Fixtures and Controls Rank Location Existing Recommended Installed Cost Annual Energy Savings 6 Room 126 9 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 9 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $220 $147 7 Utility 123,122,121 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 5 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $140 $90 8 Hallway Adjacent Kitchen 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program HighLight StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $70 $45 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 9 9 Storage Utility Room‐typ of room 119/127 16 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 16 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $455 $249 10 Office 112, Hall 111 8 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 8 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $230 $125 11 Storage 129/130 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 4 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $140 $62 12 Bay 115,118 40 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 40 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $2,400 $1,027 13 Boiler Room 114 3 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $130 $47 14 Room, 214 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $120 $36 15 Second Floor Lighting, Typ of Rooms 201,202,203,209,2 11,212,215,216,21 7 (all rooms combined) 32 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 32 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Add new Occupancy Sensor $1,820 $498 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 10 16 Room 103/104 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $120 $31 17 Interior Corridor 105 and adjacent 5 FLUOR (2) Circline 8.25" FC8T9 22W StdElectronic with Manual Switching Add new Occupancy Sensor $200 $49 18 Room 218 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 6 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic $60 $14 19 Bay 116/117 18 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 18 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant HighLight StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $1,680 $377 20 Bathrooms/Closets 106A,107,108,109, 110 7 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 7 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $570 $126 21 Kitchen 120 ‐ Stairwell 128 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 5 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $350 $70 22 Exterior Door Lighting "G" 4 MH 250 Watt StdElectronic with Daylight Sensor Replace with 4 LED 100W Module StdElectronic $5,400 $400 23 Room 218 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $100 $18 24 Typ of rooms 213,236,hallway, 230,229 19 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 19 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Controls retrofit $690 $121 25 Bedroom nightstand lights 16 INCAN A Lamp, Std 60W with Manual Switching Replace with 16 FLUOR CFL, A Lamp 20W $160 $27 26 Typical of rooms 219 220 221 222 223 225 7 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 7 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Add new Occupancy Sensor $670 $109 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 11 27 Room 228 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic $20 $3 28 Wash Down 21 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 21 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Program StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $2,220 $296 29 utility 124 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with FLUOR (2) T8 4' F32T8 28W Energy‐Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $120 $16 30 Room 233 3 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $130 $14 31 Office 106 9 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 9 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $280 $24 32 Room 231,232 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 4 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $240 $18 33 Exterior 9" Metal Halide ‐ Drawing"H" ‐ Near Exits 4 MH 70 Watt StdElectronic with Daylight Sensor Replace with 4 LED 25W Module StdElectronic $5,400 $121 34 Top of Stairwell 128 2 FLUOR T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR T8 4' F32T8 28W Energy‐Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $320 $16 35 Stairwell 102 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with FLUOR (2) T8 4' F32T8 28W Energy‐Saver Instant StdElectronic and Add new Occupancy Sensor $320 $16 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software NSB Fire Department Page 12 36 Bathrooms 226,227 3 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $230 $9 37 Exterior Lighting "G1" 2 MH 100 Watt StdElectronic with Daylight Sensor Replace with 2 LED 72W Module StdElectronic $2,700 $36 38 Entry Exterior Lighting 4 MH 100 Watt StdElectronic with Daylight Sensor Replace with 4 LED 72W Module StdElectronic $5,400 $71 39 Room 228 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $100 $2 Refrigeration Rank Location Existing Recommended Installed Cost Annual Energy Savings 5 Vending Machine 2 Vending Machine Replace with 2 Vending Machine and Add new Seasonal Shutdown $400 $291 Other Electrical Equipment Rank Location Existing Recommended Installed Cost Annual Energy Savings 4 Head bolt heaters 13 Head bolt heaters with Other Controls Replace with 13 Head bolt heaters and Improve Other Controls $1,951 $1,340 Cooking/Clothes Drying Rank Recommended Installed Cost Annual Energy Savings 27 Appendix C Equipment Schedules – Mechanical 28 Appendix C Equipment Schedules – Mechanical 29 Appendix C Equipment Schedules – Mechanical 30 Appendix C Equipment Schedules – Plumbing 31 Appendix D Building Plan – First floor 32 Appendix D Building Plan – Second floor 33 Appendix E Lighting Plan 34 Appendix E Lighting Plan 35 Appendix E Lighting Plan 36 Appendix F Mechanical Schematics – Heating 37 Appendix F Mechanical Schematics – Ventilation 38 Appendix F Mechanical Schematics – One-Line