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Home My WebLink AboutASRC-BRW-RSA Barrow Shipping Receiving 2012-EE1 Richard S. Armstrong, PE, LLC Mechanical/Electrical Engineer Comprehensive Energy Audit of Barrow Shipping & Receiving Building Project # ASRC -BRW -RSA -09 Prepared for: The North Slope Borough September 15, 2011 Prepared by: Richard S. Armstrong, PE, LLC 2321 Merrill Field Drive, C-6 Anchorage, AK 99501 and Energy Audits of Alaska P.O. Box 220215 Anchorage, AK 98522 2 TABLE OF CONTENTS 1. Executive Summary 4 2. Audit and Analysis Background 7 3. Acknowledgements 8 4. Building Description & Function 9 5. Historic Energy Consumption 10 6. Interactive Effects of Projects 10 7. Loan Program 11 Appendix A: Photos 12 Appendix B: AkWarm-C Report 15 Appendix C: Equipment Schedules 24 Appendix D: Building Plan 27 Appendix E: Lighting Plan 31 Appendix F: Mechanical Schematics 34 Appendix G: Additional Building Specific EEM details 37 Performed by: __________________________ Jeff Fondy, CEA #1625 Reviewed by: __________________________ __________ Richard Armstrong, PE, CEM Date 3 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 AkW arm -C, the Alaska Energy Data Inventory (ARIS), or other state and/or public information system. 4 1. Executive Summary This Comprehensive Energy Audit is performed in connection with AHFC’s Retrofit Energy Assessment for Loans (REAL) program. Subject Building: Barrow Shipping and Receiving Building 1795 Okpik Barrow, AK 99723 Building Owner: North Slope Borough Public Works (NSB) Building contact: Jim Snow, Facilities Manager 907-367 -3156 james.snow@north-slope.org The site visit to subject building occurred on July 21st, 2011. This two story building, constructed in 1982, is made up of offices and warehouse and houses NSB purchasing, shipping, receiving and inventory control personnel. A significant remodel was undertaken in 1994 which added office space and upgraded the building’s mechanical systems. Considering its age, the building is in good condition. The 2009 and 2010 annual utility energy consumption was obtained from North Slope Administration and Finance Utility Billing, and is displayed in Table 1 below: Table 1 2009 2010 Consumption Cost Consumption Cost Electricity - kWh 177,889 $ 18,891 172,559 $ 18,330 Natural Gas - CCF 22,809 $ 7,002 19,844 $ 6,098 Totals $ 25,893 $ 24,428 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: 5 Table 2 Subject Building Barrow Average Barrow Fire Station #2 Energy Use Index (EUI) - kBTU/SF 135 211 175 Energy Cost Index (ECI) - $/SF $1.28 $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 7 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 higher priority items are summarized below: Lighting Upgrades: The offices in this facility typically have T8-32 watt lamps and 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. The warehouse uses high pressure sodium (HPS) lamps and should be replaced with high-bay T5 fixtures which consume slightly less energy but can be put on occupancy controls (below) which result in significant savings. Lighting Control Upgrades: Occupancy 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. It is recommended to install occupancy sensors in the existing duplex switch boxes for offices and to install ceiling mounted sensors for corridors. The warehouse should be retrofitted with ceiling mounted occupancy sensors that will turn on the lights for the particular aisle when it is occupied. This could reduce power consumption by 30-90%. Exterior Lighting Upgrades: The exterior high pressure sodium lights operate during periods of darkness, which is about half of a year. It is 6 estimated that the use of LED exterior lights can reduce the power consumption by 60%. Setback Thermostats in vehicle bays and offices. 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. Plumbing fixtures: All toilets and faucets should be retrofitted or be replaced with fixtures that have proximity sensing controls. This audit does not include specific 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 but require more daily maintenance than flush urinals. De-stratification Fans: In all high bay facilities air stratification occurs due to the lower density of hot air; there can be a 5 degree F to as much as 15 degree F difference between the floor and ceiling air temperatures. De-stratification fans mix the air and bring higher temperature air down to where occupants are, and where the thermostat is. De-stratifying as little as a 5 degree temperature difference in a warehouse with a 20’ ceiling saves 12% in energy costs. Typical paybacks are less than 6 years. In addition to EEMs, various Energy Conservation Measures (ECMs) are recommended; these are policies or procedures implemented by management, which 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. 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 24 priority recommendations in the detailed report, combined, estimate to save $6550/year, with an installed cost of $43.335, this produces a simple payback of less than 7 years. This does not include design or construction management services, but overall it does indicate a cost effective energy savings program. 7 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. Measures were selected such that an overall simple payback period of 12 years or less could be achieved. 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 (when available) 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, and during the site visit is entered into AkW arm -C, an energy modeling software program developed for Alaska Housing Finance Corporation (AHFC). AKWarm-C was specifically designed to identify forecasted energy consumption which can then be compared to actual energy consumption. A k W a r m -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 a n 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. 8 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, 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 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: Benchmark utility data provided through AHFC’s initial phase of their REAL program. 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). 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 9 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. The firm has two mechanical engineers, certified as energy auditors and/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 building has two stories of offices and a high bay warehouse. 10,740 square feet of space are offices while the remaining 9489 square feet are utilized for warehousing. In total the buildings consist of 20,229 square feet of space. Benchmark utility data, including electricity and natural gas was provided through AHFC by Nortech Engineering. Building details are as follows: a. Heating System - offices: The office heating system consists of (2) Burnham 164,000 BTU/hr, gas fired boilers providing heat to the main offices and an 80,000 gas fired furnace providing heat to the small office in the southeast corner of the warehouse. Distribution from the (2) boilers is through hydronic baseboard fin tube heaters. b. Heating System - warehouse: The heating system for the shop consists of a 640,000 BTU/hr Co-Ray-Vac, gas fired radiant heating system, controlled by a standard 24 V thermostat. There are (2) small de-stratification fans; one employee stated that he stands under a fan to get warm in the winter (see EEM Appendix G-1). c. Ventilation System: The warehouse is ventilated with (2) 550,000 BTU/hr make-up air units (which employees on site said are rarely used), the offices are ventilated with (2) Pace 978 air handlers. d. Plumbing Fixtures: There are (6) lavatories with (8) toilets and (6) sinks. All of which have manual on/off faucets and manual flush toilets. e. Domestic Hot Water : Hot water is generated by a 60 gallon, indirect hot water generator located in the boiler room. f. Head Bolt Heaters: There are (22 ) outside the building for use by employees during working hours. There does not appear to be a separate electric meter in evidence for these outlets, so it is assumed that they are fed through the main electric meter. They are female 10 plugs on the end of cords hard-wired into junction boxes, so are not retrofit-able with electronic controls. g. Interior Lighting: All fluorescent fixtures in this building have T8 lamps with standard electronic ballasts, except the break room and office inside the warehouse, which have T8 lamps with magnetic ballasts. Warehouse lighting consists of 250W HPS pendants. h. Exterior Lighting: Exteri or lighting consists of (7) 250 W High Pressure Sodium (HPS) wall-pack lights and (3) 70 W HPS doorway and loading dock lights. i. Envelope: The building exterior walls and roof are 5” metal, structural insulated panels with an R19.6. The floor is a concrete slab poured on a metal deck supported by structural steel beams on pilings. The floor has an insulation value of R33.2. The ceiling insulation value is R22.6. The (4) roll-up doors are in good condition and appear to have an insulation value of R7 ; when replaced at their end of life, an R14 .6 door should be selected. The windows are double pane vinyl and also in good condition. 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 A k W a r m -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 $1.28/square foot, the average ECI for all of the benchmarked buildings in Barrow is $1.68/square foot. Another local, two story building, the Browerville Fire Station has an ECI of $1.51/square foot. The energy use index (EUI) is the total average electrical and heating energy consumption per year expressed in thousands of BTUs/SF. The average 2009 and 2010 EUI for this building is 135 kBTU/SF. The average EUI for all of the benchmarked buildings in Barrow is 211 kBTU/SF , and the EUI for the Browerville Fire Station is 175 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 11 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 AkW arm -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. 12 Appendix A Photos View from the southwest , loading docks accessed from airport runway, overhead doors in good condition Boilers and hot water generator 13 Appendix A Photos Warehouse, with existing HPS pendant lighting; small office on right (Southeast corner of building) with its own 80,000 BTU/hr furnace, Co-Ray-Vac radiant heating can be seen hear ceiling. 14 Aerial View of Shipping & Receiving Building Search and Rescue Building Barrow Airport Runway Shipping and Receiving Building North Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 1 ENERGY AUDIT REPORT – PROJECT SUMMARY – Created 9/16/2011 4:51 PM General Project Information PROJECT INFORMATION AUDITOR INFORMATION Building: Barrow Shipping and receiving Auditor Company: Energy Audits Of Alaska Address: BARROW Auditor Name: Jeff Fondy City: Barrow Auditor Address: PO Box 220215 Anchorage, AK 99522‐0215 Client Name: Marc McCumber Client Address: Auditor Phone: (907) 223‐0717 Auditor FAX: Client Phone: (907) 852‐4710 Auditor Comment: Client FAX: Design Data Building Area: 21,610 square feet Design Heating Load: Design Loss at Space: 444,441 Btu/hour with Distribution Losses: 493,824 Btu/hour Plant Input Rating assuming 82.0% Plant Efficiency and 25% Safety Margin: 752,780 Btu/hour Note: Additional Capacity should be added for DHW load, if served. Typical Occupancy: 88 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 & Electric‐elec ‐ Commercial ‐ Lg Natural Gas Provider: Barrow Utilities & Electric‐gas ‐ Commercial ‐ Lg Average Annual Cost/kWh: $0.114/kWh Average Annual Cost/ccf: $0.307/ccf Annual Energy Cost Estimate Description Space Heating Space Cooling Water Heating Lighting Other Electrical Cooking Clothes Drying Ventilation Fans Service Fees Total Cost Existing Building $8,101 $0 $116 $7,250 $7,604 $0 $0 $0 $1,222 $24,810 With Proposed Retrofits $6,445 $0 $116 $2,666 $7,294 $0 $0 $0 $1,222 $18,260 SAVINGS $1,655 $0 $0 $4,585 $310 $0 $0 $0 $0 $6,550 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 2 $0 $5,000 $10,000 $15,000 $20,000 $25,000 Existing Retrofit Service Fees Space Heating Refrigeration Other Electrical Lighting Domestic Hot Water Annual Energy Costs by End Use Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 3 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 1 Setback Thermostat: Warehouse Floor Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Warehouse Floor space. $794 $400 25.07 0.5 2 Setback Thermostat: 1st floor office Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the 1st floor office space. $181 $400 5.71 2.2 3 Setback Thermostat: 2nd Floor Office Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the 2nd Floor Office space. $179 $400 5.65 2.2 4 Other Electrical: Vending Machine Replace with 2 Vending machine and Remove Manual Switching and Add new Other Controls $266 $400 4.23 1.5 5 Setback Thermostat: Warehouse Office spaces Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Warehouse Office spaces space. $124 $400 3.90 3.2 6 Lighting: Exterior Doorway and loading dock lighting Replace with 3 LED 72W Module StdElectronic $583 $1,200 3.10 2.1 7 Lighting: conference 115 Replace with 4 FLUOR (4) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $62 $230 1.73 3.7 8 Lighting: Office 128 Replace with 6 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $48 $210 1.44 4.4 9 Lighting: 2nd floor conference 148 Replace with 4 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $47 $210 1.43 4.5 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 4 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 10 Lighting: 2nd floor 135,136,137,139 Replace with 18 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $155 $870 1.13 5.6 11 Lighting: First Floor office 104, work area 107, coffee 106 Replace with 20 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $172 $1,000 1.10 5.8 12 Lighting: Exterior Replace with 7 LED 72W Module StdElectronic $1,161 $7,800 0.95 6.7 13 Lighting: Camera 117, 116, Office 121 Replace with 16 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $136 $940 0.92 6.9 14 Lighting: 2nd floor office 134 Replace with 2 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $17 $180 0.60 10.6 15 Lighting: 1st floor storage 108, office 109, office 110, office 111, vestibule 112 Replace with 10 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $85 $900 0.60 10.6 16 Lighting: Warehouse Lighting Replace with 23 FLUOR (4) T5 45.2" F54W/T5 HO Standard HighEfficElectronic and Remove Manual Switching and Add new Occupancy Sensor $1,225 $13,200 0.59 10.8 17 Lighting: Locker Rooms / Toilets Replace with 5 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $45 $500 0.58 11.1 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 5 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 18 Lighting: 2nd floor storage 142 Replace with 2 FLUOR (4) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $30 $340 0.57 11.2 19 Lighting: 2nd floor office 138,139,140 Replace with 6 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $50 $570 0.56 11.3 20 Lighting: 2nd fLoor Coffee, Toilet 147,148 Replace with 3 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $17 $480 0.23 28.2 21 Lighting: Warehouse Floor Office 129,130,131 and upstairs break rooms / toilets Replace with 18 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $174 $5,580 0.20 32.1 22 Lighting: Stairwell Replace with 2 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $23 $770 0.19 33.7 23 Lighting: Stairwell 103 Replace with FLUOR T8 4' F32T8 28W Energy‐Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $4 $755 0.03 188.6 Appe ndix G‐1 De‐stratification fans Add (8) de‐stratification fans in vehicle bay; energy savings typically greater than 12%. Licensed engineer to determine number, size and locations of fans. $972 $5.600 5.9 TOTAL $6,550 $43,335 1.15 6.8 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 6 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 Rank Location Size/Type/Condition Recommendation Installed Cost Annual Energy Savings 1 Warehouse Floor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Warehouse Floor space. $400 $794 2 1st floor office Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the 1st floor office space. $400 $181 3 2nd Floor Office Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the 2nd Floor Office space. $400 $179 5 Warehouse Office spaces Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 55.0 deg F for the Warehouse Office spaces space. $400 $124 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 7 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 Exterior Doorway and loading dock lighting 3 HPS 250 Watt Magnetic with Daylight Sensor Replace with 3 LED 72W Module StdElectronic $1,200 $583 7 conference 115 4 FLUOR (4) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 4 FLUOR (4) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $230 $62 8 Office 128 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 and Remove Manual Switching and Add new Occupancy Sensor $210 $48 9 2nd floor conference 148 4 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 4 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $210 $47 10 2nd floor 135,136,137,139 18 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 18 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $870 $155 11 First Floor office 104, work area 107, coffee 106 20 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 20 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $1,000 $172 12 Exterior 7 HPS 250 Watt Magnetic with Daylight Sensor Replace with 7 LED 72W Module StdElectronic $7,800 $1,161 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 8 13 Camera 117, 116, Office 121 16 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 16 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $940 $136 14 2nd floor office 134 2 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $180 $17 15 1st floor storage 108, office 109, office 110, office 111, vestibule 112 10 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 10 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $900 $85 16 Warehouse Lighting 23 HPS 250 Watt Magnetic with Manual Switching Replace with 23 FLUOR (4) T5 45.2" F54W/T5 HO Standard HighEfficElectronic and Remove Manual Switching and Add new Occupancy Sensor $13,200 $1,225 17 Locker Rooms / Toilets 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 $500 $45 18 2nd floor storage 142 2 FLUOR (4) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (4) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $340 $30 19 2nd floor office 138,139,140 6 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 6 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $570 $50 Appendix B Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Barrow Shipping and receiving Page 9 20 2nd fLoor Coffee, Toilet 147,148 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 $480 $17 21 Warehouse Floor Office 129,130,131 and upstairs break rooms / toilets 18 FLUOR (2) T8 4' F32T8 32W Standard Instant EfficMagnetic with Manual Switching Replace with 18 FLUOR (2) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $5,580 $174 22 Stairwell 2 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with 2 FLUOR (3) T8 4' F32T8 28W Energy‐ Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $770 $23 23 Stairwell 103 FLUOR T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Replace with FLUOR T8 4' F32T8 28W Energy‐Saver Instant StdElectronic and Remove Manual Switching and Add new Occupancy Sensor $755 $4 Refrigeration Rank Location Existing Recommended Installed Cost Annual Energy Savings Other Electrical Equipment Rank Location Existing Recommended Installed Cost Annual Energy Savings 4 Vending Machine 2 Vending machine with Manual Switching Replace with 2 Vending machine and Remove Manual Switching and Add new Other Controls $400 $266 Cooking/Clothes Drying Rank Recommended Installed Cost Annual Energy Savings 24 Appendix C Lighting Fixtures – 1994 upgrade 25 Appendix C Lighting Fixtures – 1982 26 Appendix C Mechanical Equipment Schedule – 1994 upgrade 27 Appendix D Building Floor Plan (post-1994) – First floor 28 Appendix D Building Floor Plan (post-1994) – Second floor 29 Appendix D Building Elevations 30 Appendix D Building Elevations 31 Appendix E Lighting Plan – 1982 – still valid for high bay storage and warehouse offices 32 Appendix E Lighting Plan – 1994 upgrade – first floor offices 33 Appendix E Lighting Plan – 1994 upgrade – second floor offices 34 Appendix F Mechanical Schematic – 1994 upgrade – first floor heating plan 35 Appendix F Mechanical details – 1994 upgrade – second floor heating plan 36 Appendix F Mechanical Schematic – 1982 (High bay storage still valid) 37 Appendix G Additional, Building-Specific EEM details G-1: Install de-stratification fans in vehicle bays: De-strat fans typically save from 10%-23% in high-bay space heating costs, depending on the temperature difference at the ceiling and at floor level, and the ceiling height. For this audit, a conservative 5 degree F temperature difference and the 18’ ceiling height result in 12% savings in heating energy costs. An installed cost of $700/fan is used, resulting in a 5.9 year payback.