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Home My WebLink AboutASRC-BTI-RSA Kaktovik School 2012-EERichard S. Armstrong, PE, LLC Mechanical/Electrical Engineer Comprehensive Energy Audit of Harold Kaveolook School Kaktovik,Alaska Project # ASRC!BTI!RSA!02 Prepared for: North Slope Borough School District Contact: Pat Kennedy Jr, Director of Maintenance and Operations Phone: 907!852!4410 Barrow, Alaska February 25,2012 Prepared by: Richard S. Armstrong, PE, LLC 2321 Merrill Field Drive, C%6 Anchorage, AK 99501 and RSA Engineering, Inc. 2422 Arctic Blvd., Suite 200 Anchorage, AK 99503 Harold Kaveolook School Comprehensive Energy Audit 2 TABLE OF CONTENTS 1. Report Disclaimers 3 2. Executive Summary 4 3. Audit and Anal ysis Background 8 4. Acknowledgements 9 5. Building Description & Function 10 6. Historic Energy Consumption 13 7. Energy Efficiency Measures Considered or Recommended 14 8. Interactive Effects of Projects 18 9. Loan Program 19 Appendix A: Photos 20 Appendix B: AkWarm!C Report 33 Appendix C: Building Schedules and Plans 62 Performed by: ___________________________ Tyler T. Gray, BSME, CEA CEA # 1627 RSA Engineering, Inc. Reviewed by: ___________________________ Richard Armstrong, PE, CEM CEA #178, CEM # 13557 Harold Kaveolook School Comprehensive Energy Audit 3 1. 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 reviewed by running a lighting analysis to assure that the recommended lighting upgrades will comply with State of Alaska Statue as well as IES recommendations. Payback periods may well 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 others involved in preparation of this report will accept 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. IGSs are the property of the State, and may be incorporated into AkWarm% C, the Alaska Energy Data Inventory (ARIS), or other state and/or public information system. Harold Kaveolook School Comprehensive Energy Audit 4 Investment Grade Energy Audit Kaktovik Harold Kaveolook School 2. Executive Summary: The Kaktovik (aka Barter Island) Harold Kaveolook School is currently 39,452 sq. ft. and the original construction date is unknown. The earliest record of construction available was the 1977 addition of the Gymnasium and Kitchen. Typically the construction materials and methods utilized throughout the school were similar to North Slope Alaska school construction in the late ‘70s and early ‘80s. The building is on piles, with wood framed walls, a mix of cold attic and hot roof construction and batt insulation throughout. The school underwent many renovations and expansions over the course of the last three decades, as follows: 19?? % Origional Northwest Wing and Teacher Housing 1977 % Gymnasium and Kitchen Addition *19?? % Northeast Classroom Addition 1981 % Vocational Education Addition 1991 % Waste Heat Intertie 1991 to 1993 % Various Finish and Hydronic Remodels 1994 % Upgrades Phase II and Phase III 1997 % Gymnasium Expansion *19?? % Addition of Teacher Housing *19?? % Kitchen and Cafeteria Upgrades 2007 % Heat Recovery Upgrades 2010 % High Efficiency Lighting Upgrades * No plans available for this work, sequence of construction is estimated The facility is owned and operated by the North Slope Borough School District (NSBSD). Benchmark energy use data collected for this building is presented in Table 1 below: Harold Kaveolook School Comprehensive Energy Audit 5 Table 1 2009 2009 2010 2010 Utility Consumption Cost/Year Consumption Cost/Year Electricity%kWh 811,728 $275,978 773,163 $262,875 No. 2 Fuel Oil % Gallons 19,326 $ 85,627 39,392 $117,860 Heat Recovery% MMbtu *622 $0 *622 $0 Ttl Energy Costs $361,615 $380,736 * BTU meter data unavailable. Heat recovery estimated on equipment sizing and heat recovery rates as similar facilities. 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 about 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 2 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. Those EEMs that have a payback period or those that are recommended for code compliance, life cycle replacement, or other reasons are also included. Specific EEMs recommended for this facility are detailed in the attached AkWarm Energy Audit Report along with specific payback times, as well as estimated installation costs and estimated energy savings. The higher priority items are summarized below: Kaktovik Harold Kaveolook School Kaktovik Public Safety Office Anaktuvuk Pass Nunamuit School Energy Use Index (EUI) kBTU/SF Avg 2009, 2010 183.3 236.2 128.07 Energy Cost Index (ECI) Overage 2009, 2010 $9.15 $9.10 $5.99 Harold Kaveolook School Comprehensive Energy Audit 6 a. Air Handler and Ventilation Fan Controls i. The building air handlers are fitted with a Johnson Controls Metasys direct digital control (DDC) system. At the time of this audit it was reported that the system was being re%programmed with new scheduling and sequences of operations. Prior to this, the airh handlers and ventilation fans were reported to operate continuously. It is our recommendation that the schedules be tailored to operate only during the actual occupied hours occupied and to maintain building minimum temperature setpoints. Additional space temperature sensors may need to be installed for night set%back operation. ii. Carbon Dioxide (CO2) Monitoring: CO2 sensors can be utilized to help reduce the amount of outside air drawn into the building. Rather than supply a set minimum amount of outside air during AHU operation (20% of total AHU air volume, for example) the outside air can be varied to maintain the CO2 levels below a determined setpoint, typically 800%1000ppm for schools. This often results in less outside air being drawn into the building, which reduces the amount of energy needed to heat the air. iii. The above changes to AHU control will provide an estimated 10%15% annual energy savings with an expected payback in under 1 year. b. Replace Electric Thermostats and Zone Valves: The building thermostats are currently standard single stage electric thermostats designed to maintain a single temperature. It is recommended that these thermostats be replaced with standalone programmable thermostats, or with sensors to monitor the temperature and control the zone valves by the DDC system. This would allow the temperature of the school to be lowered at night, which would save approximately $12,000 per year. It was also apparent that many some zone valves were malfunctioning, these valves should be replaced. c. Replace the boilers and pumps: The two existing boilers are 80% efficient based on nameplate data. It is likely they are Harold Kaveolook School Comprehensive Energy Audit 7 currently operating at a further reduction due to their age. It is recommended that they be replaced with two new 3%pass high efficiency cast iron boilers. The boilers will be piped in series with the heat recovery heat exchanger to supply both the building heat and domestic hot water systems. The main constant volume heating circulations pumps for the school should be changed out for variable speed pumps. Due to efficiency increases and maintenance savings this EEM is expected to pay off under 6 years. d. The school is a prime candidate for occupancy sensor lighting. For a minimum of cost per circuit, the wall switches can be replaced with occupancy sensors. The level of occupancy of this building is less than average and the cost savings realized by the minimal investment make this EEM an excellent return on investment. In addition to EEMs, various Energy Conservation Measures (ECMs) are recommended that were not part of the energy audit model. Some involve a modest capital investment. Others 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. Water closet flushometer valve retrofit for dual level flushing. 2. Turn off computers, monitors, printers, faxes, coffee makers, etc when leaving the office for the day. 3. Disconnect refrigeration equipment over the summer, including walk%in units and residential style refrigerators throughout the building. This will save approximately $1,800/year. The priority recommendations in the detailed report estimate to save $82,710/year, with an installed cost of $182,938, for a 2.2 year payback. This does not include design or CA services, but overall it does indicate a cost effective energy savings program. Harold Kaveolook School Comprehensive Energy Audit 8 3. Audit and Analysis Background: a. Program Description: This audit included services to identify, develop, and evaluate energy efficiency measures at 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 8 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 was performed to inventory and evaluate the actual building condition, including: i. Building envelope (roof, windows, etc) ii. Heating, ventilating, and air conditioning iii. Lighting systems and controls iv. Building specific equipment v. Plumbing systems c. Method of Analysis: The information gathered prior to the site visit and at the site visit is entered into AkWarm%C, an energy modeling 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 energy savings forecasted based on occupancy schedules, utility rates, building construction type, building function, existing conditions, and climatic data that is already 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. Cost savings are calculated based on the historical energy costs for the building. Installation costs include labor and equipment to estimate the full up%front investment required to implement a change, but design and construction management costs are excluded. Costs are derived from Means Cost Data, Harold Kaveolook School Comprehensive Energy Audit 9 industry publications, experience of the auditor, local contractors and equipment suppliers. Maintenance savings are calculated were applicable and are added to the energy savings for each EEM. The cost and savings are applied and a simple payback and simple return on investment (ROI) is calculated. The simple payback is based on the number of years that it takes for the savings to pay back the net installation cost (Net Installation 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. d. Limitations of the Study: All results are dependent on the quality of input data provided, and can 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 measure, but these costs generally run around 15% of the cost of the work. 4. 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). Harold Kaveolook School Comprehensive Energy Audit 10 b. North Slope Borough School District (Owner): The NSBSD provided building access, original construction plans, two years energy billing data, building schedules and functions, as well as other resources needed to perform the audit. c. 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. 5. Building Description and Function: The subject structure is called the Kaktovik Harold Kaveolook School. The building serves as a kindergarten through twelfth grade (K%12) educational facility, which includes classrooms, administrative offices, a commercial kitchen, a multi%purpose lobby, a gymnasium, pool, locker rooms, vocational education room with shop, restrooms, and multiple storage and utility spaces. The building is a one story structure with an enclosed mechanical mezzanine above the kitchen and an insulated utildor below the building for waste piping routing to multiple waste lift stations. The Northwest wing of the building was originally constructed prior to 1977. This school has undergone many additions and renovations in the last three decades, a list of the major work follows: Harold Kaveolook School Comprehensive Energy Audit 11 1977 % Gymnasium and Kitchen Addition – Includes administration area, library, pool, fan room, & boiler plant. *19?? % Northeast Classroom Addition % ~8200 sq. ft. addition including 8 classrooms, restroom group, commons area & teachers break room. 1981% Vocational Education Addition – Woodshop, metal shop, paint booth, office, storage and maintenance office. 1991 % Waste Heat Intertie – Original connection to power house heat recovery system. 1991 to 1993 % Various Finish and Hydronic Remodels – Locker room group renovation, Northwest wing heating intertie with boilerplant. 1994 % Upgrades Phase II & Phase III – Kitchen and Classroom renovations, Boilerplant re%piping, Northwest wing ventilation (AHU%5). 1997 % Gymnasium Expansion % Gymnasium bleacher and ventilation addition (AHU%6). *19?? % Addition of Teacher Housing – Addition of three teacher housing units ~ 4147 sq. ft. *19?? % Kitchen and Cafeteria Upgrades – Remodel includes cafeteria and ventilation. 2007 % Heat Recovery Upgrades – Revision of boiler piping/pumping intertie with heat exchanger, addition of heat recovery controller. 2010 % High Efficiency Lighting Upgrades – Replacement of Gymnasium lighting & exterior lighting. * No plans available for this work, sequence of construction is estimated The gymnasium has high ceilings extending to the underside of the roof. Hallways, common areas, classrooms, offices, locker rooms, the kitchen and various storage and utility rooms have ceilings heights ranging from 8 to 9.5 feet. The typical building construction is as follows: Roof structure is wooden trusses in a cold attic space with batt insulation, exterior walls are 2x8 framed walls with batt insulation, floor structure is wood truss and glulam beams supported on piles with batt insulation. The exteriors are covered with metal roofing and plywood siding respectively. The roof insulation value is approximately R%38, the exterior walls approximately R%19 and the floor is approximately R%30. The overall building design and construction is similar to many schools that have been built in Northern Alaska in the Harold Kaveolook School Comprehensive Energy Audit 12 late ‘70s and early ‘80s. The building is in fair condition considering its age and is likely due for renovations. The building is occupied from the middle of August through the middle of May. The school is largely unused during the summer months, except for occasional community functions and gatherings. a. Heating System: The school heating plant is located in the center core of the building adjacent to the kitchen, pool and Gymnasium. Heat to the facility is provided by two (2) Weil% Mclain PL 886 cast iron boilers with 14.1 gph burners, and a net water heating output of 1,391.3 MBH each. A heat recovery heat exchanger supplements the boilers, and is capable of providing up to 1,200 MBH based on pump flow rates. The heat recovery system controller is currently inoperative, and the system is assumed to be under manual control. Discussions with the school principal indicate that significant fuel savings have been realized with the heat recovery system, and they typically manually shut down the boilers from May until October. Refer to Table 1 for average utility consumption data. This heating plant supplies all ventilation units, envelope heat, domestic hot water, utility heat trace, and the teacher housing units. Each teacher housing unit has an individual boiler designed to provide redundancy should the common heat loop supplied from the school heating plant fail. Hot glycol is circulated around the building using eleven (11) Grundfos model circulators, sized at between 1/4 and 1%1/2 HP each. The pumps are not equipped with VFD drives, so they run at full speed at all times. Heat is distributed throughout the building using baseboard fintube in most perimeter spaces, unit heaters in the Gymnasium, utility spaces, cabinet unit heaters in vestibule entries, and some supplemental heat through tempered ventilation air. b. Ventilation System: There are multiple air handlers, ventilation and exhaust fans in the facility. AHU%1 serves Northeast classroom wing addition and common areas; this air handler is heating only, with individual booster coils serving individual classrooms. There is an unnamed air handler with a common mixing box and preheat coils located above the kitchen. This air handler has three individual supply fans and booster coils, serving the Kitchen (1%1/2HP), the Gymnasium Harold Kaveolook School Comprehensive Energy Audit 13 (1%1/2HP), and the Pool (1HP) respectively. Ventilation VF%1 is located above the vocational education shop and serves the southwest addition. AHU%5 was provided with the 1994 Phase III upgrades and was retrofit to provide ventilation to the original Northwest classroom wing. AHU%6 is located above the northern Gym vestibule, and provides ventilation to the Gymnasium in addition to the supply fan #2 off of the common air handler above the kitchen. Exhaust fans are installed for the kitchen cooking line exhaust hood, commercial dishwasher hood, locker rooms, restrooms, boiler room, vocational education shop, pool chemical room, pool room, fanroom 201 and kitchen storage room. Heating of ventilation (outside) air is a significant source of energy consumption for commercial buildings. State of Alaska design codes mandate that certain quantities of ventilation air must be provided, however there are devices and strategies that can be employed to regulate the introduction of ventilation air so energy is not wasted. c. Plumbing System: Water is provided from the village utility and there is not any on%site storage or any metering of water consumption. Fixtures include water closets, lavatories, single head showers, classroom sinks, mop sinks, and large sinks for cooking. Most fixtures are located in bathroom groups, including locker rooms, custodial closets and the commercial kitchen. d. Domestic Hot Water: Hot water is generated using double Amtrol Boiler Mate model indirect water heaters. No additional hot water storage is provided. There is a hot water recirculation pump that runs constantly to provide instant hot water to remote fixtures. e. Lighting: Typical lighting throughout the building occupied spaces is T%8 fluorescent fixtures using electronic ballasts. The gymnasium was recently retrofitted to utilize 6 lamp T%8 fluorescent high%bay fixtures at Exterior lighting was recently retrofitted with LED lighting with on photocells. 6. Historic Energy Consumption: Energy consumption is modeled within the AkWarm%C program. The program only analyzes 12 months of data, so where 24 months of data are available, the data is Harold Kaveolook School Comprehensive Energy Audit 14 averaged and input to AkWarm%C to provide more accuracy. Refer to Table 1. The energy consumption data is presented and graphed in the attached AkWarm%C program results. The average electric consumption for the building is 792,446kWh/year at an average cost of $269,427/year. The average fuel oil consumption is 29,327 gallons/year, at an average annual cost of $101,744/year. Heat recovery data is approximated based on equipment size and similar facility usage. 7. Energy Efficiency Measures considered or recommended: The building was examined for application of a multitude of potential EEMs that are discussed below. Those EEMs that appear to have an application for the subject building are further analyzed for estimated payback periods, either within the AkWarm%C program or separately within this report. The accuracy of the cost estimates and paybacks varies significantly due to a multitude of conditions, but is estimated to be approximately +/% 25%. Assumptions made regarding energy costs and the life of the EEM, noting that post%construction measurement and verification are based on energy savings, not energy cost savings. Many of the selected EEMs are analyzed within the AkWarm%C program using the schedules and estimated costs input into the model. a. Ventilation Control: The majority of the air handling units (AHUs) and ventilation fans (VFs) serving the various school spaces are fitted with a Johnson Controls Metasys direct digital control (DDC) system. At the time of this audit it was reported that the system was being re%programmed with new scheduling and sequences of operations. Prior to this, the air handlers and ventilation fans were reported to operate continuously. An uncontrolled air handler will use excessive heating and electrical energy if the damper positions are not monitored and the units stay on 24/7. In the event that a unit is not operating during school hours, the school will not have adequate ventilation air, which will affect occupant comfort and performance. It is recommended that all ventilation and air hander units be brought under reliable direct digital controls and be scheduled to operate only when required. Harold Kaveolook School Comprehensive Energy Audit 15 i. Replace actuators and sensors: The vocational education ventilation fan, and the combined air hander with three supply fans above the Kitchen serving the Kitchen, Gymnasium and Pool has exceeded their useful lives and need to be replaced or completely overhauled. The controllers are outdated and there does not appear to be sufficient instrumentation to accurately control heat or airflow to the spaces. The Pool exhaust fan, and fanroom exhaust fan do not appear to be fit with DDC controls. The remainder of the air handler’s controls and sensors should be inspected and tested for calibration and operation. ii. Operation Schedules: Each of the AHUs and VFs serve a space (or spaces) with unique occupancy schedules. The AHUs should remain off with the outside air dampers closed to the maximum extent possible when the space is not occupied. The DDC should only turn on the heating and fans when a space is in need of ventilation or based on heat. In order to reduce the amount of electric and heating energy used by the AHUs the following scheduling changes are recommended: 1. AHU!1 Classrooms, common areas, offices, administration vocational education – Operate the unit only during known school hours, provide night setback functionality with override. 2. Common air handler (Fan#1 Kitchen, Fan#2 Gymnasium, Fan#3 Pool Ventilation) – Provide a dedicated schedule for each fan based on occupancy hours and/or consider installing a manual timer. Consider operating Fan #3 interlocked with the Pool Exhaust fan to maintain a humidity setpoint. 3. AHU!5 Northwest Classroom Wing ! Operate the unit only during known school hours and provide night setback functionality with override. 4. AHU!6 Gymnasium – Operate the unit during known periods of occupancy such as school hours and scheduled “open gym” hours. Provide night setback. Consider installing a manual override timer Harold Kaveolook School Comprehensive Energy Audit 16 in the gymnasium or front office, accessible only to staff, that will operate the AHU for a set period of time such as 1 or 2 hours. This will allow the flexibility of operating the AHU outside of typical schedules, for sporting events or community gatherings, without the possibility of forgetting to turn the unit off. 5. VF!1 Home Economics/Vocational Education ! Provide a dedicated schedule controller, and/or consider installing a manual timer. Given that these spaces have moderately industrial uses it is important that the VF is operable during occupancy to provide adequate air changes. 6. Boiler room exhaust, Fan room 201 exhaust fan ! These fans should be controlled to only operate to maintain a temperature setpoint of > 80 deg. F. 7. Kitchen storage exhaust fan ! Recommend this fan be controlled to only operate to maintain a temperature setpoint of > 50 deg. F. iii. Carbon Dioxide (CO2) Monitoring: The amount of CO2 in a building has been shown to have a direct effect on the performance of the occupants in the building. High levels of CO2 >1000ppm cause occupants to feel sleepy and lose concentration. It is also an indication that other indoor contaminants, such as volatile organic compounds (VOCs), odors and excessive humidity are likely increasing in concentration. For these reasons ventilation air is required by code to refresh indoor building air. Typically the ventilation rate is determined based on the number of occupants and space sizes. In many cases this over%ventilates the space. Another method of ventilating spaces is varying the amount of outside air based on CO2 levels in the building. Sensors can be placed in spaces throughout the building (preferred) or in the return air duct at the AHUs, and the AHU outside air dampers can be modulated to increase or decrease the outside air delivered to the building. This modification applies specifically to Classrooms, Gymnasium and Vocational education areas. Harold Kaveolook School Comprehensive Energy Audit 17 b. Replace Thermostats and Zone Valves: The building thermostats are currently standard single stage electric thermostats designed to maintain a single temperature. It is recommended that these thermostats be replaced with standalone programmable thermostats, or with sensors to monitor the temperature and control the zone valves by the DDC system. This would allow the temperature of the school to be lowered at night, which would save approximately $12,000 per year. It was also apparent that some zone valves were malfunctioning and creating “hot spots” throughout the building, causing the occupants to leave windows open to cool the space. These valves or thermostats should be replaced. Having the majority of the space integrated into a DDC system will have the additional benefits of real%time monitoring of space temperatures, improving maintenance efficiency in identifying malfunctioning devices c. Repair heat recovery controller: The heat recovery digital controller was displaying inaccurate data at the time of this audit, and the heat exchanger appeared to be under manual control. The controller must be re%commissioned to monitor the heat recovery loop temperature vs. the building loop temperature and modulate the three way valve. This will increase the use of waste heat and reduce the chance of boiler back feed into the district heat loop. It is recommended that the maintenance personnel routinely inspect and and document heat recovery usage. d. Replace Boilers and Pumps: Replace the boilers and pumps: The two existing boilers are 80% efficient based on nameplate data, it is likely they are currently operating at a further reduction due to their age. The boilers were installed with the 1977 construction and have reached the end of their useful lives. It is recommended that they be replaced with two new high efficiency 3%pass cast iron sectional boilers. The boilers will be piped in series with the heat recovery heat exchanger to supply both the building heat and domestic hot water systems. The main constant volume heating circulators for the school can be changed out for variable speed pumps. The pumps can run at lower speeds when the school has a low heating demand, which will save power and reduce cost. Harold Kaveolook School Comprehensive Energy Audit 18 The main circulation pump can also be turned off when there is no call for heating, rather than run continuously as it currently does. Due to efficiency increases and maintenance savings this EEM is expected to pay off in under 4 years. e. Install occupancy sensors in all areas: With exception of the Gymnasium and other common areas, the remainder of the school is a prime candidate for occupancy sensor lighting. The level of occupancy of this building is less than average and the cost savings realized by the minimal investment make this EEM an excellent return on investment. 8. 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. Harold Kaveolook School Comprehensive Energy Audit 19 9. 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. Harold Kaveolook School Comprehensive Energy Audit 20 Appendix A: Photos Exterior of Library, View looking West Heat Recovery Piping & Gymnasium, View looking Southwest Harold Kaveolook School Comprehensive Energy Audit 21 Northwest Wing, View looking Southeast Northeast Classroom Wing, View looking Southeast Harold Kaveolook School Comprehensive Energy Audit 22 VF!1 Ventilation Fan ! Serving Woodshop & Metalshop Typical Commons Lighting ! T!8 Harold Kaveolook School Comprehensive Energy Audit 23 Typical Classroom Lighting ! T!8 Kitchen Storage ! Exhaust Fan Harold Kaveolook School Comprehensive Energy Audit 24 Gymnasium Lighting and Ventilation AHU!6 Above Gym Vestibule ! Gymnasium Ventilation Harold Kaveolook School Comprehensive Energy Audit 25 Pool Lighting and Ventilation Boiler Nameplate ! Weil!Mclain PL886 Harold Kaveolook School Comprehensive Energy Audit 26 Typical Building Circulation Pumps Domestic Hot Water Heat Generators and Teacher Housing Glycol Harold Kaveolook School Comprehensive Energy Audit 27 Heat Exchanger Heat Recovery Controller Display ! Inoperative Pool Exhaust Fan Harold Kaveolook School Comprehensive Energy Audit 28 Pool Supply ! Fan #3 from Common AHU Gymnasium and Kitchen Supply ! Fan #2, Fan#1 from Common AHU Harold Kaveolook School Comprehensive Energy Audit 29 AHU ! Cafeteria Air Handler AHU ! 5 ! Northwest Wing Ventilation Harold Kaveolook School Comprehensive Energy Audit 30 Typical Kitchen Equipment AHU!1 ! Northeast Classroom Airhandler Harold Kaveolook School Comprehensive Energy Audit 31 Northeast Classroom Supply Ductwork with Booster Coils AHU!7 ! Library Ventilation Harold Kaveolook School Comprehensive Energy Audit 32 Typical Teacher Housing Harold Kaveolook School Comprehensive Energy Audit 33 Appendix B: AK Warm Energy Model Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 1 ENERGY AUDIT REPORT – PROJECT SUMMARY – Created 2/25/2012 7:57 PM General Project Information PROJECT INFORMATION AUDITOR INFORMATION Building: Harold Kaveolook School Auditor Company: RSA Engineering Address: 2039 Barter Avenue Auditor Name: Tyler Gray City: Kaktovik Auditor Address: 2522 Artic Blvd. Suite 200 Anchorage Alaska 99503-2516 Client Name: Pat Kennedy Jr. Client Address: Barrow Alaska Auditor Phone: (907) 276-0521 Auditor FAX: Client Phone: (907) 852-4710 Auditor Comment: Client FAX: (907) 852-9760 Design Data Building Area: 39,452 square feet Design Heating Load: Design Loss at Space: 1,030,357 Btu/hour with Distribution Losses: 1,030,357 Btu/hour Plant Input Rating assuming 82.0% Plant Efficiency and 25% Safety Margin: 1,570,666 Btu/hour Note: Additional Capacity should be added for DHW load, if served. Typical Occupancy: 192 people Design Indoor Temperature: 70 deg F (building average) Actual City: Kaktovik Design Outdoor Temperature: -39.3 deg F Weather/Fuel City: Kaktovik Heating Degree Days: 20,370 deg F-days Utility Information Electric Utility: North Slope Borough Utilities - Commercial - Sm Natural Gas Provider: None Average Annual Cost/kWh: $0.350/kWh Average Annual Cost/ccf: $0.000/ccf Annual Energy Cost Estimate Description Space Heating Space Cooling Water Heating Lighting Refrige ration Other Electric al Cooking Clothes Drying Ventilatio n Fans Service Fees Total Cost Existing Building $179,97 3 $0 $7,739 $40,843 $17,75 4 $35,54 2 $20,446 $1,826 $47,814 $0 $351,938 With Proposed Retrofits $132,09 4 $0 $8,080 $30,274 $17,75 4 $35,54 2 $20,446 $1,826 $23,211 $0 $269,227 SAVINGS $47,879 $0 -$341 $10,569 $0 $0 $0 $0 $24,603 $0 $82,710 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 2 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 3 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 1 Setback Thermostat: 013 - Gymnasium Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 013 - Gymnasium space. $1,778 $200 124.05 0.1 2 Setback Thermostat: 201 - 2 Storage rooms and Fan Room (West Wing) Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 201 - 2 Storage rooms and Fan Room (West Wing) space. $1,121 $200 78.22 0.2 3 Setback Thermostat: 302 - Teacher Housing 2 Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 302 - Teacher Housing 2 space. $916 $200 63.89 0.2 4 Setback Thermostat: 304 - Teacher Housing 4 Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 304 - Teacher Housing 4 space. $914 $200 63.78 0.2 5 Setback Thermostat: 303 - Teacher Housing 3 Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 303 - Teacher Housing 3 space. $702 $200 49.01 0.3 6 Setback Thermostat: S104 - Metal Shop Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S104 - Metal Shop space. $690 $200 48.11 0.3 7 Setback Thermostat: 120 - Classroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 120 - Classroom space. $645 $200 45.00 0.3 8 Setback Thermostat: 162 - Generator - Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 162 - Generator - space. $637 $200 44.46 0.3 9 Setback Thermostat: 141 - Preschool Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 141 - Preschool space. $630 $200 43.93 0.3 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 4 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 10 Setback Thermostat: 301 - Teacher Housing 1 Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 301 - Teacher Housing 1 space. $599 $200 41.80 0.3 11 Setback Thermostat: 118/119 - Classrooms Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 118/119 - Classrooms space. $598 $200 41.75 0.3 12 Setback Thermostat: S102 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S102 - Corridor space. $585 $200 40.81 0.3 13 Ventilation Schedule all air handlers off during unoccupied hours, instal space temperature sensors for night set-back operation. $44,532 $16,000 36.26 0.4 14 Setback Thermostat: 104 - Teachers Work Room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 104 - Teachers Work Room space. $395 $200 27.56 0.5 15 Setback Thermostat: 026 - Kitchen Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 026 - Kitchen Storage space. $368 $200 25.66 0.5 16 Setback Thermostat: 128 - Science Classroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 128 - Science Classroom space. $351 $200 24.48 0.6 17 Setback Thermostat: 129 - Arts and Crafts Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 129 - Arts and Crafts space. $349 $200 24.34 0.6 18 Setback Thermostat: 145 - Bedroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 145 - Bedroom space. $340 $200 23.71 0.6 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 5 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 19 Setback Thermostat: 001 - Multi-Purpose Room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 001 - Multi-Purpose Room space. $330 $200 23.04 0.6 20 Setback Thermostat: 016/018 Girls bathroom/locker room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 016/018 Girls bathroom/locker room space. $307 $200 21.40 0.7 21 Setback Thermostat: 109/110 - Commons Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 109/110 - Commons space. $299 $200 20.89 0.7 22 Setback Thermostat: 024 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 024 - Storage space. $294 $200 20.54 0.7 23 Setback Thermostat: S112 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S112 - Storage space. $291 $200 20.30 0.7 24 Setback Thermostat: 027 - Pool Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 027 - Pool space. $288 $200 20.07 0.7 25 Setback Thermostat: 015 - Gym Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 015 - Gym Storage space. $282 $200 19.67 0.7 26 Setback Thermostat: 147 - Bedroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 147 - Bedroom space. $244 $200 17.04 0.8 27 Setback Thermostat: 117 - Classroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 117 - Classroom space. $235 $200 16.39 0.9 28 Setback Thermostat: S105 - Engine Repair Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S105 - Engine Repair space. $198 $200 13.84 1 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 6 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 29 Setback Thermostat: 108 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 108 - Corridor space. $195 $200 13.60 1 30 Setback Thermostat: 163 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 163 - Storage space. $180 $200 12.56 1.1 31 Setback Thermostat: 114 - Reception Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 114 - Reception space. $156 $200 10.86 1.3 32 Setback Thermostat: 123 - Home Economics Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 123 - Home Economics space. $142 $200 9.90 1.4 33 Setback Thermostat: 003-Principal Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 003-Principal space. $128 $200 8.94 1.6 34 Setback Thermostat: 010 - Student Store Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 010 - Student Store space. $118 $200 8.23 1.7 35 Setback Thermostat: 142 - Classroom Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 142 - Classroom space. $117 $200 8.17 1.7 36 Lighting: Commons 113 T8's Remove Manual Switching and Add new Occupancy Sensor $421 $354 7.36 0.8 37 Setback Thermostat: 023 - Weight Room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 023 - Weight Room space. $102 $200 7.13 2 38 Setback Thermostat: S118 - Project Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S118 - Project Storage space. $94 $200 6.58 2.1 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 7 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 39 Setback Thermostat: 115 - Work Room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 115 - Work Room space. $78 $200 5.45 2.6 40 Lighting: West Wing Type A - Lithonia LB 240A Remove Manual Switching and Add new Occupancy Sensor $872 $1,062 5.08 1.2 41 Setback Thermostat: 154 - Laundry Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 154 - Laundry space. $73 $200 5.06 2.8 42 Lighting: Pool Lighting Remove Manual Switching and Add new Occupancy Sensor $279 $354 4.88 1.3 43 Lighting: 2010 upgrade Gym Type A - Guth EXC-W6-F32- N-WG-1/2B42 Remove Manual Switching and Add new Occupancy Sensor $792 $1,062 4.61 1.3 44 Setback Thermostat: 014 - Girls Shower Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 014 - Girls Shower space. $63 $200 4.36 3.2 45 Setback Thermostat: 130 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 130 - Storage space. $62 $200 4.30 3.2 46 Setback Thermostat: 012 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 012 - Corridor space. $57 $200 3.95 3.5 47 Lighting: Arts and Crafts 126 Remove Manual Switching and Add new Occupancy Sensor $192 $354 3.35 1.8 48 Lighting: General Classroom 125 Remove Manual Switching and Add new Occupancy Sensor $191 $354 3.34 1.8 49 Lighting: Science Classroom Remove Manual Switching and Add new Occupancy Sensor $191 $354 3.34 1.8 50 Setback Thermostat: 160 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 160 - Corridor space. $48 $200 3.32 4.2 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 8 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 51 Lighting: Commons 113 Spot lighting Remove Manual Switching and Add new Occupancy Sensor $177 $354 3.09 2 52 Setback Thermostat: 124 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 124 - Storage space. $44 $200 3.06 4.6 53 Lighting: Elementary/Prescho ol Remove Manual Switching and Add new Occupancy Sensor $170 $354 2.96 2.1 54 Setback Thermostat: 144 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 144 - Corridor space. $42 $200 2.95 4.7 55 Setback Thermostat: 025 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 025 - Corridor space. $42 $200 2.91 4.8 56 Setback Thermostat: 153 - Utility Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 153 - Utility space. $41 $200 2.89 4.8 57 Lighting: Elementary Classroom 177 2- bulb T8's Remove Manual Switching and Add new Occupancy Sensor $159 $354 2.77 2.2 58 Lighting: West Wing Type C - Bryant 5228 Remove Manual Switching and Add new Occupancy Sensor $294 $708 2.57 2.4 59 Setback Thermostat: 156 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 156 - Storage space. $36 $200 2.53 5.5 60 Lighting: West Wing Type E - Lithonia M240-M-VL Remove Manual Switching and Add new Occupancy Sensor $278 $708 2.42 2.5 61 Setback Thermostat: 132 - Storgae Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 132 - Storgae space. $34 $200 2.35 5.9 62 HVAC And DHW Replace 1978 70% CI boilers with 3-pass 85% CI boilers, Replace building circulators with variable speed pumps. $14,458 $120,000 2.35 8.3 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 9 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 63 Lighting: Weight Room 2 bulb T8 fixtures Remove Manual Switching and Add new Occupancy Sensor $125 $354 2.19 2.8 64 Lighting: Kitchen 138 Remove Manual Switching and Add new Occupancy Sensor $125 $354 2.19 2.8 65 Lighting: General Classroom 119 Remove Manual Switching and Add new Occupancy Sensor $125 $354 2.18 2.8 66 Lighting: General Classroom 121 Remove Manual Switching and Add new Occupancy Sensor $125 $354 2.18 2.8 67 Lighting: Home Economics 117 2 bulb T8's Remove Manual Switching and Add new Occupancy Sensor $125 $354 2.18 2.8 68 Lighting: Multi- purpose room Remove Manual Switching and Add new Occupancy Sensor $123 $354 2.14 2.9 69 Lighting: Teachers Workroom 174 Remove Manual Switching and Add new Occupancy Sensor $107 $354 1.88 3.3 70 Setback Thermostat: 106 - Conference Room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 106 - Conference Room space. $23 $200 1.60 8.6 71 Lighting: '93 Bathroom/Custodian /Mechanical lighting Type A - Lithonia PV240-120-MK3- WG-3-PCEP Remove Manual Switching and Add new Occupancy Sensor $176 $708 1.54 4 72 Lighting: 010 upgrade Gym bleachers Type A1 - Guth EXC-W4-F32- W-WG-1/2B22 Remove Manual Switching and Add new Occupancy Sensor $86 $354 1.51 4.1 73 Setback Thermostat: 122 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 122 - Corridor space. $21 $200 1.45 9.5 74 Lighting: Home Economics 117 4- bulb T8's Remove Manual Switching and Add new Occupancy Sensor $81 $354 1.41 4.4 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 10 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 75 Lighting: West Wing Type N - PrescoLite WS-210 Remove Manual Switching and Add new Occupancy Sensor $162 $708 1.41 4.4 76 Lighting: Gym area Type M - Bryant 5228 Remove Manual Switching and Add new Occupancy Sensor $144 $708 1.25 4.9 77 Lighting: West Wing Type P - Lithonia C240 Remove Manual Switching and Add new Occupancy Sensor $142 $708 1.24 5 78 Setback Thermostat: 157 - Utility Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 157 - Utility space. $16 $200 1.09 12.7 79 Lighting: West Wing Type B - Lithonia 2M-260- Remove Manual Switching and Add new Occupancy Sensor $62 $352 1.08 5.7 80 Lighting: Storage (Loading Dock) Remove Manual Switching and Add new Occupancy Sensor $62 $354 1.08 5.7 81 Lighting: General Classroom 124 Remove Manual Switching and Add new Occupancy Sensor $62 $354 1.08 5.7 82 Lighting: Maintenance and Admin 186 Remove Manual Switching and Add new Occupancy Sensor $62 $354 1.08 5.7 83 Lighting: Conference Room 172 Remove Manual Switching and Add new Occupancy Sensor $61 $354 1.06 5.8 84 Lighting: Library T5's Remove Manual Switching and Add new Occupancy Sensor $115 $708 1.00 6.2 85 Lighting: Multi Purpose room CFL's Remove Manual Switching and Add new Occupancy Sensor $56 $354 0.97 6.4 86 Lighting: Principals office - Crescent NJN240 Remove Manual Switching and Add new Occupancy Sensor $51 $354 0.90 6.9 87 Setback Thermostat: 105 - Office Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 105 - Office space. $13 $200 0.90 15.2 88 Lighting: Storage 201/Fan Room 202 Remove Manual Switching and Add new Occupancy Sensor $51 $354 0.89 6.9 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 11 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 89 Lighting: Entry/Vestibule (Main) Corridor in front of Multi Purpose room T8's Remove Manual Switching and Add new Occupancy Sensor $51 $354 0.89 6.9 90 Lighting: Reception 106/Storage 135 (Workroom) Remove Manual Switching and Add new Occupancy Sensor $51 $354 0.89 6.9 91 Lighting: Corridor outside of #177 and Temp Housing #1 T8's Remove Manual Switching and Add new Occupancy Sensor $51 $354 0.90 6.9 92 Lighting: '93 Bathroom/Storage lighting Type B - Lithonia VR1240-AR- 120V-ES Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.72 8.6 93 Lighting: 2010 upgrade Gym Storage Room Type EA - 1'x4' industrial strip fixture Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.71 8.7 94 Lighting: AV room Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.71 8.6 95 Lighting: Gym storage/Student store (next to main entry) Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.71 8.7 96 Lighting: Bathrooms next to Janitor 114 4' T8's Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.71 8.7 97 Lighting: Storage Behind Elementary 177 Remove Manual Switching and Add new Occupancy Sensor $41 $354 0.71 8.6 98 Lighting: Storage 175 Remove Manual Switching and Add new Occupancy Sensor $40 $354 0.70 8.8 99 Lighting: Gym area Type F - Prescolite WB-210 Remove Manual Switching and Add new Occupancy Sensor $80 $708 0.69 8.9 100 Lighting: West Wing Type F - Crouse Hands EVEX101 Remove Manual Switching and Add new Occupancy Sensor $36 $354 0.62 10 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 12 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 101 Lighting: East Wing Vestibule Remove Manual Switching and Add new Occupancy Sensor $36 $354 0.62 10 102 Lighting: Bathroom Lighting Remove Manual Switching and Add new Occupancy Sensor $35 $354 0.60 10.2 103 Setback Thermostat: 021 - Janitor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 021 - Janitor space. $9 $200 0.59 23.3 104 Lighting: Corridor outside of Boys/Girls North end Remove Manual Switching and Add new Occupancy Sensor $31 $354 0.53 11.6 105 Lighting: Teacher Office 173 Remove Manual Switching and Add new Occupancy Sensor $30 $354 0.52 11.8 106 Lighting: Laundry 187 Remove Manual Switching and Add new Occupancy Sensor $30 $354 0.53 11.7 107 Lighting: West Wing Type E - Prescolite B4-B42 Remove Manual Switching and Add new Occupancy Sensor $29 $352 0.51 12.1 108 Lighting: West Wing Type V - Art Metal 2609FC Remove Manual Switching and Add new Occupancy Sensor $27 $354 0.46 13.4 109 Lighting: Bathrooms next to Janitor 114 T12 Remove Manual Switching and Add new Occupancy Sensor $26 $354 0.45 13.8 110 Lighting: Corridor outside of #177 and Temp Housing #1 Remove Manual Switching and Add new Occupancy Sensor $21 $354 0.37 16.7 111 Lighting: West Wing Type M - Lithonia 2M 260 m412 Remove Manual Switching and Add new Occupancy Sensor $20 $354 0.36 17.4 112 Lighting: 2010 upgrade Gym Entryways Type ED - 2'X4' Recessed Troffer fixtuere Remove Manual Switching and Add new Occupancy Sensor $20 $354 0.36 17.3 113 Lighting: Fan Room 203 Remove Manual Switching and Add new Occupancy Sensor $20 $354 0.35 17.5 114 Lighting: Electrical room 112 Remove Manual Switching and Add new Occupancy Sensor $21 $354 0.36 17.3 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 13 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 115 Lighting: Corridor outside of Temp Housing Remove Manual Switching and Add new Occupancy Sensor $20 $354 0.35 17.5 116 Lighting: '93 Bathroom/Storage lighting Type C - Metalux BUE-230- 120-LE3 Remove Manual Switching and Add new Occupancy Sensor $19 $351 0.34 18.3 117 Lighting: Janitor 114 Remove Manual Switching and Add new Occupancy Sensor $18 $354 0.31 20.1 118 Lighting: Bathroom Lighting Replace with 2 FLUOR (2) T8 4' F32T8 32W Standard Instant LowLight HighEfficElectronic $34 $699 0.30 20.5 119 Lighting: Storage 201/Fan Room 202/Boiler Room Remove Manual Switching and Add new Occupancy Sensor $16 $354 0.28 22.2 120 Lighting: Library T8'S Remove Manual Switching and Add new Occupancy Sensor $15 $354 0.26 23.5 121 Lighting: Boys/Girls North end Improve Occupancy Sensor $15 $354 0.26 23.6 122 Lighting: Entry/Vestibule (Main) Corridor in front of Multi Purpose room CFL's Remove Manual Switching and Add new Occupancy Sensor $14 $354 0.24 25.7 123 Lighting: Gym area Type H - Crescent VTC-240 Remove Manual Switching and Add new Occupancy Sensor $13 $354 0.22 28 124 Lighting: '93 Bathroom/Storage lighting Corridor outside bathrooms and Vestubule Remove Manual Switching and Add new Occupancy Sensor $12 $354 0.20 30.8 125 Lighting: Corridor outside of #172/#174 Remove Manual Switching and Add new Occupancy Sensor $12 $354 0.20 30.6 126 Lighting: Bathrooms next to Janitor 114 2' T8's Remove Manual Switching and Add new Occupancy Sensor $11 $354 0.18 33.7 127 Lighting: Storage 179 Remove Manual Switching and Add new Occupancy Sensor $11 $354 0.18 33.4 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 14 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 128 Lighting: Equipment room above Boys/Girls/Janitor 114 Remove Manual Switching and Add new Occupancy Sensor $10 $354 0.18 34.7 129 Lighting: Utility 188 Remove Manual Switching and Add new Occupancy Sensor $10 $354 0.18 35.2 130 Lighting: North Vestibule Remove Manual Switching and Add new Occupancy Sensor $10 $354 0.18 34.4 131 Lighting: 186 Entryway Remove Manual Switching and Add new Occupancy Sensor $10 $354 0.18 34.9 132 Lighting: Elementary Classroom 177 1- bulb T8 Remove Manual Switching and Add new Occupancy Sensor $5 $354 0.09 68.2 133 Lighting: Library CFL Remove Manual Switching and Add new Occupancy Sensor $5 $354 0.08 77.6 134 Setback Thermostat: S107 - Boys Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S107 - Boys space. $0 $200 0.00 Infinity 135 Setback Thermostat: S108 - Girls Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S108 - Girls space. $0 $200 0.00 Infinity 136 Setback Thermostat: S110 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S110 - Storage space. $0 $200 0.00 Infinity 137 Setback Thermostat: S111 - Office Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S111 - Office space. $0 $200 0.00 Infinity 138 Setback Thermostat: S113 - Wood Shop Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S113 - Wood Shop space. $0 $200 0.00 Infinity 139 Setback Thermostat: 002 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 002 - Corridor space. $0 $200 0.00 Infinity Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 15 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 140 Setback Thermostat: 007 - Kitchen Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 007 - Kitchen space. $0 $200 0.00 Infinity 141 Setback Thermostat: 008 - Corridor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 008 - Corridor space. $0 $200 0.00 Infinity 142 Setback Thermostat: 009 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 009 - Storage space. $0 $200 0.00 Infinity 143 Setback Thermostat: 019/022 - Boys bathroom/locker room Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 019/022 - Boys bathroom/locker room space. $0 $200 0.00 Infinity 144 Setback Thermostat: 020 - Boys Shower Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 020 - Boys Shower space. $0 $200 0.00 Infinity 145 Setback Thermostat: 111 - Janitor Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 111 - Janitor space. $0 $200 0.00 Infinity 146 Setback Thermostat: 112 - Girls Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 112 - Girls space. $0 $200 0.00 Infinity 147 Setback Thermostat: 113 - Boys Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 113 - Boys space. $0 $200 0.00 Infinity 148 Setback Thermostat: 125 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 125 - Storage space. $0 $200 0.00 Infinity 149 Setback Thermostat: 143 - Storage Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 143 - Storage space. $0 $200 0.00 Infinity Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 16 PRIORITY LIST – RECOMMENDED ENERGY EFFICIENCY MEASURES Rank Feature Recommendation Annual Energy Savings Installed Cost SIR Payback (Years) 150 Setback Thermostat: 158 - Boys Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 158 - Boys space. $0 $200 0.00 Infinity 151 Setback Thermostat: 159 - Girls Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 159 - Girls space. $0 $200 0.00 Infinity TOTAL $82,710 $182,398 6.22 2.2 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 62 Replace 1978 70% CI boilers with 3-pass 85% CI boilers, Replace building circulators with variable speed pumps. $120,000 $14,458 Setback Thermostat Rank Location Size/Type/Condition Recommendation Installed Cost Annual Energy Savings Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 17 1 013 - Gymnasium Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 013 - Gymnasium space. $200 $1,778 2 201 - 2 Storage rooms and Fan Room (West Wing) Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 201 - 2 Storage rooms and Fan Room (West Wing) space. $200 $1,121 3 302 - Teacher Housing 2 Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 302 - Teacher Housing 2 space. $200 $916 4 304 - Teacher Housing 4 Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 304 - Teacher Housing 4 space. $200 $914 5 303 - Teacher Housing 3 Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 303 - Teacher Housing 3 space. $200 $702 6 S104 - Metal Shop Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S104 - Metal Shop space. $200 $690 7 120 - Classroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 120 - Classroom space. $200 $645 8 162 - Generator - Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 162 - Generator - space. $200 $637 9 141 - Preschool Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 141 - Preschool space. $200 $630 10 301 - Teacher Housing 1 Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 301 - Teacher Housing 1 space. $200 $599 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 18 11 118/119 - Classrooms Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 118/119 - Classrooms space. $200 $598 12 S102 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S102 - Corridor space. $200 $585 14 104 - Teachers Work Room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 104 - Teachers Work Room space. $200 $395 15 026 - Kitchen Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 026 - Kitchen Storage space. $200 $368 16 128 - Science Classroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 128 - Science Classroom space. $200 $351 17 129 - Arts and Crafts Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 129 - Arts and Crafts space. $200 $349 18 145 - Bedroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 145 - Bedroom space. $200 $340 19 001 - Multi- Purpose Room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 001 - Multi-Purpose Room space. $200 $330 20 016/018 Girls bathroom/locker room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 016/018 Girls bathroom/locker room space. $200 $307 21 109/110 - Commons Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 109/110 - Commons space. $200 $299 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 19 22 024 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 024 - Storage space. $200 $294 23 S112 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S112 - Storage space. $200 $291 24 027 - Pool Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 027 - Pool space. $200 $288 25 015 - Gym Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 015 - Gym Storage space. $200 $282 26 147 - Bedroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 147 - Bedroom space. $200 $244 27 117 - Classroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 117 - Classroom space. $200 $235 28 S105 - Engine Repair Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S105 - Engine Repair space. $200 $198 29 108 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 108 - Corridor space. $200 $195 30 163 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 163 - Storage space. $200 $180 31 114 - Reception Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 114 - Reception space. $200 $156 32 123 - Home Economics Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 123 - Home Economics space. $200 $142 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 20 33 003-Principal Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 003-Principal space. $200 $128 34 010 - Student Store Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 010 - Student Store space. $200 $118 35 142 - Classroom Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 142 - Classroom space. $200 $117 37 023 - Weight Room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 023 - Weight Room space. $200 $102 38 S118 - Project Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S118 - Project Storage space. $200 $94 39 115 - Work Room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 115 - Work Room space. $200 $78 41 154 - Laundry Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 154 - Laundry space. $200 $73 44 014 - Girls Shower Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 014 - Girls Shower space. $200 $63 45 130 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 130 - Storage space. $200 $62 46 012 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 012 - Corridor space. $200 $57 50 160 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 160 - Corridor space. $200 $48 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 21 52 124 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 124 - Storage space. $200 $44 54 144 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 144 - Corridor space. $200 $42 55 025 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 025 - Corridor space. $200 $42 56 153 - Utility Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 153 - Utility space. $200 $41 59 156 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 156 - Storage space. $200 $36 61 132 - Storgae Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 132 - Storgae space. $200 $34 70 106 - Conference Room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 106 - Conference Room space. $200 $23 73 122 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 122 - Corridor space. $200 $21 78 157 - Utility Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 157 - Utility space. $200 $16 87 105 - Office Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 105 - Office space. $200 $13 103 021 - Janitor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 021 - Janitor space. $200 $9 134 S107 - Boys Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S107 - Boys space. $200 $0 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 22 135 S108 - Girls Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S108 - Girls space. $200 $0 136 S110 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S110 - Storage space. $200 $0 137 S111 - Office Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S111 - Office space. $200 $0 138 S113 - Wood Shop Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the S113 - Wood Shop space. $200 $0 139 002 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 002 - Corridor space. $200 $0 140 007 - Kitchen Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 007 - Kitchen space. $200 $0 141 008 - Corridor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 008 - Corridor space. $200 $0 142 009 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 009 - Storage space. $200 $0 143 019/022 - Boys bathroom/locker room Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 019/022 - Boys bathroom/locker room space. $200 $0 144 020 - Boys Shower Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 020 - Boys Shower space. $200 $0 145 111 - Janitor Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 111 - Janitor space. $200 $0 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 23 146 112 - Girls Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 112 - Girls space. $200 $0 147 113 - Boys Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 113 - Boys space. $200 $0 148 125 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 125 - Storage space. $200 $0 149 143 - Storage Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 143 - Storage space. $200 $0 150 158 - Boys Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 158 - Boys space. $200 $0 151 159 - Girls Existing Unoccupied Heating Setpoint: 70.0 deg F Implement a Heating Temperature Unoccupied Setback to 60.0 deg F for the 159 - Girls space. $200 $0 Ventilation Rank Recommendation Cost Annual Energy Savings 13 Schedule all air handlers off during unoccupied hours, instal space temperature sensors for night set-back operation. $16,000 $44,532 3. Appliances and Lighting Lighting Fixtures and Controls Rank Location Existing Recommended Installed Cost Annual Energy Savings 36 Commons 113 T8's 39 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $421 40 West Wing Type A - Lithonia LB 240A 81 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $1,062 $872 42 Pool Lighting 6 INCAN Reflector, Std 250W R40 with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $279 43 2010 upgrade Gym Type A - Guth EXC- W6-F32-N-WG- 1/2B42 24 FLUOR (6) T8 4' F32T8 32W Standard (2) Program StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $1,062 $792 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 24 47 Arts and Crafts 126 18 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $192 48 General Classroom 125 18 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $191 49 Science Classroom 18 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $191 51 Commons 113 Spot lighting 16 INCAN A Lamp, Halogen 60W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $177 53 Elementary/Presch ool 16 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $170 57 Elementary Classroom 177 2- bulb T8's 15 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $159 58 West Wing Type C - Bryant 5228 8 INCAN A Lamp, Std 200W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $294 60 West Wing Type E - Lithonia M240-M- VL 21 FLUOR (2) T12 4' F40T12 40W Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $278 63 Weight Room 2 bulb T8 fixtures 12 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $125 64 Kitchen 138 12 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $125 65 General Classroom 119 12 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $125 66 General Classroom 121 12 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $125 67 Home Economics 117 2 bulb T8's 12 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $125 68 Multi-purpose room 8 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $123 69 Teachers Workroom 174 7 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $107 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 25 71 '93 Bathroom/Custodia n/Mechanical lighting Type A - Lithonia PV240- 120-MK3-WG-3- PCEP 17 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $176 72 010 upgrade Gym bleachers Type A1 - Guth EXC-W4-F32- W-WG-1/2B22 4 FLUOR (4) T8 4' F32T8 32W Standard (2) Program StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $86 74 Home Economics 117 4-bulb T8's 4 FLUOR (4) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $81 75 West Wing Type N - PrescoLite WS- 210 6 INCAN A Lamp, Std 150W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $162 76 Gym area Type M - Bryant 5228 4 INCAN A Lamp, Std 200W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $144 77 West Wing Type P - Lithonia C240 11 FLUOR (2) T12 4' F40T12 40W Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $142 79 West Wing Type B - Lithonia 2M-260- 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $352 $62 80 Storage (Loading Dock) 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $62 81 General Classroom 124 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $62 82 Maintenance and Admin 186 6 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $62 83 Conference Room 172 4 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $61 84 Library T5's 20 FLUOR T5 45.2" F28T5 28W Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $115 85 Multi Purpose room CFL's 12 FLUOR (2) CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $56 86 Principals office - Crescent NJN240 4 FLUOR (2) T12 4' F40T12 40W Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $51 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 26 88 Storage 201/Fan Room 202 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $51 89 Entry/Vestibule (Main) Corridor in front of Multi Purpose room T8's 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $51 90 Reception 106/Storage 135 (Workroom) 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $51 91 Corridor outside of #177 and Temp Housing #1 T8's 5 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $51 92 '93 Bathroom/Storage lighting Type B - Lithonia VR1240- AR-120V-ES 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 93 2010 upgrade Gym Storage Room Type EA - 1'x4' industrial strip fixture 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 94 AV room 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 95 Gym storage/Student store (next to main entry) 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 96 Bathrooms next to Janitor 114 4' T8's 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 97 Storage Behind Elementary 177 4 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $41 98 Storage 175 2 FLUOR (4) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $40 99 Gym area Type F - Prescolite WB-210 3 INCAN A Lamp, Std 150W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $708 $80 100 West Wing Type F - Crouse Hands EVEX101 INCAN A Lamp, Std 200W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $36 101 East Wing Vestibule 2 INCAN A Lamp, Halogen 100W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $36 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 27 102 Bathroom Lighting 2 FLUOR (2) T12 4' F40T12 40W Standard Magnetic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $35 104 Corridor outside of Boys/Girls North end 3 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $31 105 Teacher Office 173 2 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $30 106 Laundry 187 2 FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $30 107 West Wing Type E - Prescolite B4-B42 11 FLUOR CFL, A Lamp 15W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $352 $29 108 West Wing Type V - Art Metal 2609FC INCAN (2) A Lamp, Halogen 75W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $27 109 Bathrooms next to Janitor 114 T12 2 FLUOR (2) T12 F40T12 40W U-Tube Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $26 110 Corridor outside of #177 and Temp Housing #1 2 INCAN A Lamp, Halogen 60W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $21 111 West Wing Type M - Lithonia 2M 260 m412 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $20 112 2010 upgrade Gym Entryways Type ED - 2'X4' Recessed Troffer fixtuere 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $20 113 Fan Room 203 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $20 114 Electrical room 112 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $21 115 Corridor outside of Temp Housing 2 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $20 116 '93 Bathroom/Storage lighting Type C - Metalux BUE-230- 120-LE3 2 FLUOR (2) T8 F32T8 30W U- Tube Energy-Saver Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $351 $19 117 Janitor 114 INCAN A Lamp, Halogen 100W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $18 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 28 118 Bathroom Lighting 2 FLUOR (2) T12 4' F40T12 40W Standard Magnetic with Manual Switching Replace with 2 FLUOR (2) T8 4' F32T8 32W Standard Instant LowLight HighEfficElectronic $699 $34 119 Storage 201/Fan Room 202/Boiler Room 7 FLUOR CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $16 120 Library T8'S FLUOR (3) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $15 121 Boys/Girls North end 2 FLUOR T12 F40T12 40W U- Tube Standard Magnetic with Occupancy Sensor Improve Occupancy Sensor $354 $15 122 Entry/Vestibule (Main) Corridor in front of Multi Purpose room CFL's 3 FLUOR (2) CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $14 123 Gym area Type H - Crescent VTC-240 FLUOR (2) T12 4' F40T12 40W Standard StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $13 124 '93 Bathroom/Storage lighting Corridor outside bathrooms and Vestubule 5 FLUOR CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $12 125 Corridor outside of #172/#174 5 FLUOR CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $12 126 Bathrooms next to Janitor 114 2' T8's 2 FLUOR T8 F32T8 32W U-Tube Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $11 127 Storage 179 INCAN A Lamp, Halogen 60W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $11 128 Equipment room above Boys/Girls/Janitor 114 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $10 129 Utility 188 FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $10 130 North Vestibule FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $10 131 186 Entryway FLUOR (2) T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $10 Energy Audit – Energy Analysis and Cost Comparison AkWarm Commercial Audit Software Harold Kaveolook School Page 29 132 Elementary Classroom 177 1- bulb T8 FLUOR T8 4' F32T8 32W Standard Instant StdElectronic with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $5 133 Library CFL FLUOR (2) CFL, Spiral 13 W with Manual Switching Remove Manual Switching and Add new Occupancy Sensor $354 $5 Refrigeration Rank Location Existing Recommended Installed Cost Annual Energy Savings Other Electrical Equipment Rank Location Existing Recommended Installed Cost Annual Energy Savings Cooking/Clothes Drying Rank Recommended Installed Cost Annual Energy Savings Harold Kaveolook School Comprehensive Energy Audit 34 Appendix C: Building Schedules and Plans