REVISED: Year 4: July 2015 to June 2016 Energy Savings Performance Contracting Measurement and Verification Report

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1 Year 4: July 2015 to June 2016 Energy Savings Performance Contracting Measurement and Verification Report University of Hawaii Community Colleges Oahu District REVISED: Presented by: Joe Caldwell, ESPE Johnson Controls, Inc October 17, 2016

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3 Table of Contents Project Executive Summary Supporting Your Mission 2 ESPC Total Project Benefits 3 Energy Conservation Measure Summary 4 Measurement and Verification Definitions 8 Contract Year 4 Rates 10 Individual ECM Overview ECM 1, 2, & 3 - Lighting Upgrades 11 ECM 6 - Energy Management System Upgrades 12 ECM 8 - Retro Commissioning 14 ECM 9 - HVAC Replacement (KCC Olona) 15 ECM 9A - HVAC Improvements 15 ECM 9C1 & C2 - HVAC Replacements (KCC PTAC) 16 ECM 10 - Variable Chilled Water Pumping 17 ECM 12 - Kitchen Exhaust Controls 19 ECM 14 - Electrical Sub-Metering 20 ECM 16 - Irrigation Controls 21 ECM 17 - Water Conservation 22 ECM 18 - PC Power Management 23 ECM 19 - Trash Management 24 ECM 20 - Vending Machine Controls 25 ECM 21B - PV Shade Structure 25 ECM 22 - Solar Water Heating 26 ECM 23 - Electrical Vehicle Charging 26 ECM 33 - HVAC Replacements (KCC Alani) 27 Value Added & Energy Manager Highlights 29 Appendix ECM 6 - Energy Management System Upgrades 32 ECM 9A - HVAC Improvements 37 ECM 9C1 & C2 - HVAC Replacements (KCC PTAC) 46 ECM 10 - Variable Chilled Water Pumping 47 ECM 16 - Irrigation Controls 50 ECM 18 - PC Power Management 51 ECM 19 - Trash Management 53 ECM 20 Solar Water Heating 56 MOD 3 - Solar PV PPA 59 1

4 Project Executive Summary Supporting Your Mission Since Johnson Controls became your strategic partner in September of 2010, it has been our charge to help you fulfill your mission. University of Hawaii Oahu Community Colleges Mission The University of Hawaii s Honolulu, Kapiolani, Leeward, and Windward Community Colleges offer high quality courses and programs in the liberal arts, as well as the carrier and technical fields for a diverse community of lifelong learners with a special commitment to Native Hawaiians. University of Hawaii Oahu Community Colleges Vision The four Oahu Community Colleges are all learning-centered institutions committed to student achievement and preparing individuals for lives of integrity, leadership and responsibility in the community and the world at large. University of Hawaii Oahu Community Colleges Energy Saving Performance Contract Overview Johnson Controls continuously exceeds our customer s expectations by creating value-added solutions that improve our client s business and working environment. The integration of innovative finance programs with capital improvements funded from operating expenses allows the customer to pay for facility improvements through their operational budget. For the University of Hawaii Oahu Community Colleges, this innovative contracting approach funded the replacement of many of their obsolete energy management systems, central plant equipment and campus wide efficient lighting and plumbing fixture upgrades. These changes have resulted in Year 4 period performance of $2,598,756 cost avoidance. This is greater than the guaranteed savings therefore; UHCC realized additional savings. Details are provided in this report and Appendix. University of Hawaii Community Colleges Oahu District Energy Savings Performance Contract Summary Year kwh kgal Trash Therm Guaranteed Verified Actual Avoidance Avoidance Avoidance Avoidance Savings Savings* Savings** 1 5,669,490 22,865 65,736 - $1,910,156 $1,748,390 $2,125, ,723,135 23,549 67,708 - $2,112,709 $2,055,894 $2,388, ,340,855 23,898 48,790 2,401 $2,312,896 $2,427,155 $2,642, ,667,977 23,435 59,606 1,865 $2,417,037 $2,598,756 $2,380,221 2

5 Updated ESPC Total Project Benefits The Total Project Benefits are the guaranteed project benefits to be achieved during the entire term of this project. The benefits include the base contract and all modifications to date; they are listed below. 1. Base Contract 2. Mod#0 KCC Parking Lot Lighting 3. Mod#1 LCC Chiller Plant Optimization 4. Mod#2 Pole Lighting (HCC, KCC, WCC) 5. Mod#3 PPA Solar PV Year Utility Cost Avoidance Operations and Maintenance Avoidance Future Capital Avoidance Annual Projects Benefits 0 $ - $ - $ - $ - 1 $ 1,910,156 $ 128,067 $ - $ 2,038,223 2 $ 2,094,861 $ 136,339 $ - $ 2,231,199 3 $ 2,312,579 $ 154,116 $ - $ 2,466,695 4 $ 2,417,037 $ 66,936 $ - $ 2,483,973 5 $ 2,526,257 $ 68,944 $ - $ 2,595,201 6 $ 2,640,459 $ 71,013 $ - $ 2,711,472 7 $ 2,759,876 $ 73,143 $ - $ 2,833,019 8 $ 2,884,743 $ 75,337 $ - $ 2,960,080 9 $ 2,960,203 $ 77,597 $ - $ 3,037, $ 3,095,386 $ 79,925 $ - $ 3,175, $ 3,236,778 $ 82,323 $ - $ 3,319, $ 3,384,667 $ 84,793 $ - $ 3,469, $ 3,539,355 $ 87,336 $ - $ 3,626, $ 3,701,155 $ 89,957 $ - $ 3,791, $ 3,870,401 $ 92,656 $ - $ 3,963, $ 4,047,432 $ 95,435 $ - $ 4,142, $ 4,232,614 $ 98,298 $ - $ 4,330, $ 4,426,323 $ 101,247 $ - $ 4,527, $ 4,628,956 $ 104,284 $ - $ 4,733, $ 4,840,926 $ 107,413 $ - $ 4,948,339 Total $ 65,510,164 $ 1,875,159 $ - $ 67,385,323 3

6 Energy Conservation Measure Summary The table below lists the Energy Conservation Measures (ECM) implemented during the installation period of the performance contract; showing the Year 4 utility and dollar avoidance for each measure. ECM 1 ECM Description Interior Lighting Improvements Dole Street ECM Summary kwh Guaranteed Avoidance Savings Verified Savings* Actual Savings** 22,062 $6,917 $5,842 $5,383 ECM ECM Description Honolulu Community College ECM Summary kwh Avoidance kgal Avoidance Trash Avoidance Therm Avoidance Guaranteed Savings Verified Savings* Actual Savings** Lighting Interior, Exterior, and 1,2,3 Controls 796,886 $272,804 $226,622 $210,776 6 Energy Management System and FPI 81,753 $23,249 $23,249 $21,624 8 Retro-Commissioning 38,863 $11,052 $11,052 $10,279 9A HVAC Improvements Building 2 377,452 $73,733 $107,341 $99, Central Plant Primary Variable Pumping 147,313 $26,691 $41,893 $38, Building Electrical Sub-metering 58,499 $16,636 $16,636 $15, Water Conservation 1,775 $19,620 $27,799 $27, PC Power Management 9,447 $21,698 $2,687 $2, Trash Management $21,373 $31,798 $21,373 $21, Vending Machine Power Management 14,976 $5,324 $4,259 $3,961 Photovoltaic Energy 21B Generation 17,023 $4,841 $4,841 $4, Solar Thermal Generation 1,033 $8,262 $4,338 $4,338 Mod2 Pole Lighting 67,630 $23,353 $19,233 $17,888 Mod3 Solar PV PPA 376,839 $42,144 $66,730 $56,442 Total 1,986,681 1,775 21,373 1,033 $581,205 $578,053 $535,755 4

7 ECM ECM Description Kapiolani Community College ECM Summary kgal Trash Avoidance Avoidance kwh Avoidance Guaranteed Savings Verified Savings* Actual Savings** Lighting Interior, Exterior, and 1,2,3 Controls 614,675 $160,539 $163,480 $138,978 6 Energy Management System and FPI 574,013 $152,666 $152,666 $129,784 8 Retro-Commissioning 72,304 $19,230 $19,230 $16,348 9 HVAC Replacement - Olona Building 49,696 $13,218 $13,218 $11,236 HVAC - PTAC Units 9C1 (Kaulia, Iliahi, Ilima) 219,796 $84,482 $58,457 $49, Kitchen Exhaust Controls 45,810 $10,965 $12,184 $10, Building Electrical Sub-metering 87,564 $23,288 $23,288 $19, Irrigation Managment 7,060 $127,588 $110,554 $110, Water Conservation 7,176 $98,274 $112,373 $112, PC Power Management 42,074 $17,393 $11,190 $9, Trash Management $26,717 $30,382 $26,717 $26, Vending Machine Power Management 29,952 $6,970 $7,966 $6, HVAC Replacement - Alani Building 53,053 $14,327 $14,110 $11,995 Mod2 Pole Lighting 60,224 $15,192 $16,017 $13,617 Mod3 Solar PV PPA 218,349 $20,711 $31,943 $23,647 Total 2,067,510 14,236 $26,717 $795,225 $773,393 $691,386 5

8 ECM ECM Description Leeward Community College ECM Summary kwh Avoidance kgal Avoidance Trash Avoidance Therm Avoidance Guaranteed Savings Verified Savings* Actual Savings** Lighting Interior, Exterior, and 1,2,3 Controls 781,126 $221,382 $214,945 $204,733 6 Energy Management System and FPI 402,745 $110,825 $110,825 $105,559 8 Retro-Commissioning 36,995 $10,180 $10,180 $9,696 9A HVAC Improvement- Theater 154,716 $42,574 $42,574 $40,551 Central Plant- Variable 10 Primary Pumping & Chiller Plant Upgrade 765,638 $83,531 $210,683 $200, Kitchen Exhaust Controls 74,351 $11,219 $20,459 $19, Building Electrical Sub-metering 65,638 $18,061 $18,061 $17, Irrigation Managment 2,381 $37,284 $37,284 $37, Water Conservation 2,716 $53,788 $42,522 $42, PC Power Management 26,171 $23,425 $7,202 $6, Trash Management $11,516 $9,651 $11,516 $11, Vending Machine Power Management 44,928 $11,847 $12,363 $11, Solar Thermal Generation 832 $3,219 $2,650 $2,650 Mod3 Solar PV PPA 1,289,652 $119,026 $197,578 $188,659 Total 3,641,960 5,097 $11, $756,012 $938,842 $899,170 6

9 ECM ECM Description Windward Community College ECM Summary kwh Avoidance kgal Avoidance Guaranteed Savings Verified Savings* Actual Savings** Lighting Interior, Exterior, and 1,2,3 Controls 333,530 $98,418 $92,547 $74,477 8 Retro-Commissioning 37,948 $10,530 $10,530 $8,474 9A HVAC Improvement- Imaginarium 84,595 $23,473 $23,473 $18,890 Central Plant- Variable 10 Primary Pumping & Combine Chill Water Loops 263,896 $61,927 $73,225 $58, Kitchen Exhaust Controls 26,847 $5,407 $7,449 $5, Building Electrical Sub-metering 71,589 $19,864 $19,864 $15, Irrigation Managment 0 $9,366 $0 $0 17 Water Conservation 2,327 $22,424 $36,444 $36, PC Power Management 55,274 $10,102 $15,337 $12, Vending Machine Power Management 13,104 $2,078 $3,636 $2,926 Mod2 Pole Lighting 62,981 $14,089 $20,121 $14,064 Total 949,764 2,327 $277,678 $302,626 $248,527 7

10 UHCC Measurement and Verification Table ECM Description of ECM Option Measurement and Verification parameters evaluated Interior, Exterior, and Lighting Pre and Post kw readings on a sample of fixtures & pre and post foot-candles readings. 1, 2, & 3 A Control retrofits Operation hours were established during the development phase. Energy Management System Occupied schedules; equipment fan status (run-time); occupied and unoccupied zone 6 B Upgrades temperatures; discharge and outside air temperature. Energy and Emissions 7 NM No measurement is required for this ECM, only verification of operation. Management System 8 HVAC Retro-Commissioning NM No measurement is required for this ECM, only verification of operation. 9 & 9A HVAC Improvements B Supply and return air status; discharge, mixed, and outside air temperatures; zone temperatures; damper positions; occupied schedule; variable frequency drive status and speed 9A Exhaust Fan Replacements NM No measurement is required for this ECM, only verification of operation. 9C1, 9C2, & & 10A HVAC Replacements Central Chilled Water Plant improvements B B Supply and return air status; discharge, mixed, and outside air temperatures; zone temperatures; damper positions; occupied schedules. Chiller status; Chilled Water and Condenser pump status; kw/ton; variable frequency drive status and speed. 10C Cooling Tower Improvements A Pre and Post kw readings of fan motors; variable frequency drive status and speed 12 Kitchen Exhaust Controls NM No measurement is required for this ECM, only verification of operation. 14 Electric Sub-Metering NM No measurement is required for this ECM, only verification of operation. 16 Irrigation Controls B 17 Water Conservation - Low Flow Plumbing Fixtures A Contract year water usage as compared to baseline usage. Tracking of weather data as compared to average weather data used for baseline. One time pre and post measurement samples of water use for a sample of fixtures. 18 PC Power Management Software A Annual kw usage as compared to baseline kw usage of all PCs with policies in place. 20 Vending Machine Controls NM No measurement is required for this ECM, only verification of operation. 21B Photovoltaic System - shade NM No measurement is required for this ECM, only verification of operation. 22 Solar Hot Water System B Measurement of actual MBtus produced by the solar system. The available solar radiation will be monitored and compared to the estimated annual amount. 23 Electric Vehicle Charging Stations NM No measurement is required for this ECM, only verification of operation. 27 Trash Management B Number of annual trash pick-ups and volume as compared to the baseline year, through monthly invoices. Measurement and Verification Definitions The following is a brief overview of the Measurement and Verification () methodologies applicable to the Improvement Measures set forth in this project. These methodologies are standards of the International Measurement and Verification Protocol (IPMVP) in connection with the provision of Services. Option A Retrofit Isolation: Key Parameter Measurement An Option A approach involves a retrofit or system level assessment. In an Option A, at least one variable must be measured. These measurements may be one time, short term or continuous. The factor(s) not measured is stipulated based on assumptions, analysis of historical data, or manufacturer s data. Performance and Operation Factors: Savings are based on a combination of measured and stipulated factors. Measurements are spot, short-term or continuous and are taken at the component or system level. The stipulated factors are supported by historical or manufacturer s data. 8

11 Savings Calculation: Savings are derived using engineering calculations, component, or system models. Option B Retrofit Isolation: All Parameter Measurement The Option B Approach is intended for retrofits with performance and operational factors that can be measured at the component or system level. Under Option B all parameters effecting energy use are measured. Spot or short-term measurements are appropriate to determine energy savings when variations in operations are not expected to change. When variations are expected, it is appropriate to measure factors continuously during the performance contract. Option B verification procedures involve the same items as Option A but involve more end-use metering. The Measure Specific Guarantee method is used on a measure-by-measure basis. Utility savings are proven by comparing the value of the applicable physical measurement both before and after installation of the Energy Conservation Measure. Measure Specific Performance Guarantees track individual performance measures instead of total building performance. Performance and Operation Factors: This methodology is based on spot or short-term measurements taken at the component or system level when variation in factors is not expected. This option also allows continuous measurements taken at the component level when variations are expected. Savings Calculation: Savings calculations are based on engineering calculations, component, or system models. 9

12 Contract Utility Rates used in calculations for Year 4 Utility Avoidance (savings) Utility Type Electric Energy Dole Street Offices $0.265 per kwh Year 4 Utility Cost Honolulu Community College Utility Type Year 4 Utility Cost Electric Energy* $0.284 per kwh Electric Energy** $0.175 per kwh Electric Demand Demand Savings not calculated Natural Gas $ per therm Water/wastewater $15.66/kgal Trash*** $4,769.75/mo Baseline Trash Cost * Base ESPC Project. ** SPPA Rate less Avoided Rate. *** Trash cost based on 15 tons/mo and 4,218 students. Leeward Community College Utility Type Year 4 Utility Cost Electric Energy* $0.275 per kwh Electric Energy** $0.153 per kwh Electric Demand Demand Savings not calculated Natural Gas $ per therm Water/wastewater $15.66/kgal Trash*** $3,059.64/mo Baseline Trash Cost * Base ESPC Project. ** SPPA Rate less Avoided Rate. *** Trash cost based on 17 tons/mo and 6,771 students. Kapiolani Community College Utility Type Year 4 Utility Cost Electric Energy* $0.266 per kwh Electric Energy** $0.146 per kwh Electric Demand Demand Savings not calculated Natural Gas No gas savings at this campus Water/wastewater $15.66/kgal Trash*** $5,307.38/mo Baseline Trash Cost * Base ESPC Project. ** SPPA Rate less Avoided Rate. *** Trash cost based on 20 tons/mo and 8,221 students. Windward Community College Utility Type Year 4 Utility Cost Electric Energy* $0.277 per kwh Electric Energy** $0.319 per kwh Electric Demand Demand Savings not calculated Natural Gas No gas savings at this campus Water/wastewater $15.66/kgal Trash No trash savings at this campus * Base ESPC project. ** Mod 2 Pole Lighting 10

13 Individual ECM overview ECM 1, 2, & 3 - Lighting Interior, Exterior and Control Upgrades ECM 1, 2, & 3 Lighting Upgrades kwh Avoidance kw Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Dole Street Office 22,062 7 $5,842 $5,383 Honolulu Community College 796, $226,622 $210,776 Kapiolani Community College 614, $163,480 $138,978 Leeward Community College 781, $214,945 $204,733 Windward Community College 333, $92,547 $74,477 Total Avoidance 2,548, $703,436 $634,347 There are no changes from previous year. Scope Overview with As-built conditions: Existing fluorescent luminaires were retrofit with high CRI 5000ºK 28-Watt premium super T8 lamps and universal-voltage third-generation electronic ballasts. The retrofit involved the removal and disposal of existing lamps and ballasts, fixture cleaning, and the installation of new T8 lamps and electronic ballasts. These ECMs will improve the energy efficiency of lighting fixtures, improve the overall quality of lighting, maintain appropriate levels of lighting, and reduce lighting system maintenance costs in the buildings. Wherever it was practical, these ECMs included the installation of fixtures with built-in occupancy sensors, as well as occupancy sensors in a few select locations, to disable lights when the rooms are unoccupied, reducing lighting burn hours. Occupancy sensors are dual technology (ultrasonic and infrared) for both ceiling-mounted sensors and wall sensors. Dual technology sensors require neutral wiring, often not found at the wall switch wiring. In such cases, Leviton dual-technology sensors, which do not require a neutral wire, were installed. The sensors are intuitive and, after they are set, self-calibrate to avoid false activations. In addition, they will pick up even the slightest activity of the occupant so the fixture will remain on when the space is occupied. Delamping Delamping is the removal of one or more lamps from a fixture. When delamping is employed, the ballast for the removed lamps is also disconnected, as are unused sockets. Delamping was combined with the use of the proper output ballast, and may have involved centering kits and/or reflectors. LED Fixtures Select recessed exterior and interior down-light and wall-mount compact fluorescent (CFL) or incandescent fixtures were replaced with new long-life, high efficiency LEDs, which have a rated life expectancy of more than 10 years. New Fluorescent Fixtures A wide variety of existing fluorescent or incandescent lights as well as specialized CFL or HID fixture types were replaced with new fluorescent fixtures. The new fixtures are strip, decorative, vapor proof, wrap, etc., 11

14 as appropriate for the application. These fixtures standardized on 2-foot or 4-foot super T8 lamps, greatly reducing the variety of lamps to be maintained as well as the lamp replacement costs. Lighting Levels Maintained Lighting levels were maintained by pre and post photopic and scotopic light level readings. At all campuses some fixtures were changed from their proposed fixture or retrofit to a solution that would maintain the light level to acceptable Illuminating Engineer Society (IES) standards for each type of location. Most of these changes resulted in less energy savings than were initially expected. During a lighting upgrade JCI strives to conserve as much energy as possible without sacrificing adequate light levels. One time kw measurement were performed on existing fixtures as well as the new and retrofit fixtures and used to verify the savings for these ECMs. This one time measurement process was completed at the end of Year 1 and verifies savings for the term of the contract, provided that the equipment is maintained as installed. ECM 6 - Energy Management System Upgrades ECM 6 Energy Management System Upgrades kwh Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Honolulu Community College 81,753 $23,249 $21,624 Kapiolani Community College 574,013 $152,666 $129,784 Leeward Community College 402,745 $110,825 $105,559 Total Avoidance 1,058,511 $286,740 $256,967 In June 2016, Windward and Leeward Community College experienced a network hacking incident that disabled the use of the two Metasys Servers. Although the Metasys Servers were offline, the building level controllers operating equipment on each campus were still completely operational and performing as scheduled prior to the hacking incident. Savings are therefore calculated to reflect 100% operational controllers throughout the contract period. Windward campus was able to wipe clean their server and JCI technicians reinstalled the Metasys software in July Leeward campus created a virtual server on their network and JCI technicians reinstalled the Metasys software in September Protocols have been developed in conjunction with UHCC IT professionals and shared with all campuses to help avoid IT security incidents in the future. Scope Overview with As-built conditions: Johnson Controls (JCI) installed a new Metasys Energy Management System (EMS) at the HCC and LCC campuses, replacing various obsolete energy management equipment. At the KCC and WCC campuses the existing EMS, Automated Logic and Metasys respectively, were maintained with new equipment and controls added to the system network. In addition the EMS controls at each site was incorporated into the ECMs related to central plant operation and HVAC as follows. 12

15 New Metasys controllers, actuators and sensors were installed for the upgraded HCC, LCC, and WCC Chilled Water (CHW) Plants (as described in ECM 10 below). As well as HVAC equipment improvements (as described in ECM 9A). New Automated Logic controllers, actuators and sensors were added to new (ECM 9, 9C, & 33) and existing HVAC equipment at the Kapiolani campus. Variable frequency drives (VFD) were added to the Condenser water cooling system for PTAC units (9C). All campuses had building electrical sub metering (ECM 14 below) added to the EMS systems, along with upgraded graphic displays and scheduling for new and existing equipment interface control by the campus staff. Facility Performance Indexing (FPI) software was added to the EMS for continual commissioning of controls at each campus. Both the Metasys and FPI servers store many archived trend points used in the commissioning and troubleshooting process by the JCI energy manager and other JCI staff. The EMS at each campus provides scheduling and control of most pieces of HVAC equipment. These control strategies and schedules have been implemented to save each campus on the amount of energy it takes to condition occupied spaces. Metasys and FPI both have the ability to trend the operation of many individual points for review by both campus staff and the JCI energy manager. Using these two tools the energy manger can identify areas that are under preforming and in many cases resolve these conditions with the EMS system. Critical equipment alarms are also recorded in one place. The EMS for each campus can be accessed remotely by JCI and UHCC staff through web pages. After hours events and emergency conditions can be monitored from internet connections, including cellular smart phones, reducing the need to travel to the site. Trend data was collected via the EMS to track the performance of the key variables for each measure or control strategy. These key variables were analyzed to verify proper equipment functionality. During project development, energy simulation software (equest) was used to project the energy savings for this measure and was also used in the verification of savings during the post installation period. The recorded key variables, or parameters, were used to check the inputs and outputs of the equest models for each campus. Post installation updates to the model were made in cases where there were estimated values during the project development. These variables will not be altered throughout the performance period and will be considered fixed or agreed upon values. Any inaccurate fixed parameters were corrected for all models during Year 1. Fixed equest parameters in the energy models are: Historical weather data used in the energy simulation models Building loads based on pre-retrofit building construction Pump & cooling tower loads Baseline equipment performance for existing equipment Baseline operating schedules and temperature setpoints Baseline utility rate structure used to determine the cost savings 13

16 Building occupancy and plug loads The energy savings directly attributed to ECM 6 are the result of implementing HVAC schedules. Schedules for each building under EMS control were verified through extensive trend studies. The data was examined to confirm that the AC shut off during unoccupied hours, and ran during occupied hours. The intent of this verification was to ensure that the system operated correctly per the implemented schedules. JCI is not responsible for building schedules outside the contract parameters. EMS screen captures show supply fan status going off, supply air temperature rising, and zone temperature rising when scheduled unoccupied. When scheduled to run the fan status changes to on, supply air temperatures fall, and zone temperatures fall. Schedule and trend records can be found in the Appendix. Key performance parameters that were trended are listed below: Discharge air temperatures and setpoints Return air temperatures and setpoints Zone temperatures, during occupied and unoccupied periods, and setpoints Static Pressure and setpoints Differential pressure and setpoints Supply, return, and exhaust fan status Occupied & unoccupied schedules ECM 8 - Retro Commissioning ECM 8 Retro - Commissioning kwh Avoidance *Year 4 **Year 4 (Non-Measured) Verified Savings Actual Savings Honolulu Community College 38,863 $11,052 $10,279 Kapiolani Community College 72,304 $19,230 $16,348 Leeward Community College 36,995 $10,180 $9,696 Windward Community College 37,948 $10,530 $8,474 Total Avoidance 186,110 $50,992 $44,797 There are no changes from previous year. Scope Overview with As-built conditions: At each campus JCI Service Technicians formulated a list of HVAC items that were in need of repair for correct operation of those units. The allotted time and money that was specified in the contract was used to correct the most relevant of these deficiencies. The service work and the dollars spent were reviewed between JCI and UH to verify the completion of this ECM. JCI reduced the amount of annual maintenance for this equipment during the Energy Savings Project installation. This is a non-measured ECM, the savings were agreed upon in the contract. A list of the items that were repaired at each campus can be found in the Year 1 Report Appendix. 14

17 ECM 9 - HVAC Replacement (KCC Olona) *Year 4 **Year 4 ECM 9 HVAC Replacement kwh Avoidance Verified Savings Actual Savings Kapiolani Community College 49,696 $13,218 $11,236 There are no changes from previous year. Scope Overview with As-built conditions: JCI removed and replaced 6 Air Handling Units (AHU) and their associated chiller on the rooftop of the Olona building. A VFD was added to the chilled water pump and existing 3-way valves were retrofitted with 2-way valves. During development the ECM was modeled in equest. The energy savings are based on the improved EER ratings of the new equipment and conversion to a variable pumping design. The model parameters were verified during Year 1. These variables will not be altered throughout the performance period and will be considered fixed or agreed upon values. ECM 9A - HVAC Improvements ECM 9A HVAC Improvements kwh Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Honolulu Community College 377,452 $107,341 $99,836 Leeward Community College 154,716 $42,574 $40,551 Windward Community College 84,595 $23,473 $18,890 Total Avoidance 616,763 $173,388 $159,277 There are no changes from previous year. Scope Overview with As-built conditions: Each of these campuses had unique HVAC Improvements to existing equipment. HCC had changes to the AHUs and VAV boxes in Building 2. The Hot Deck for AHUs 1-6 and associated mixing boxes were capped off. CO 2 sensors were added to the return air for each AHU and new dampers and actuators were installed on each outside air duct. Flow sensors were added to the VAV boxes and a static pressure sensor installed near the end of the ductwork. Existing VFDs were not being utilized to their potential until after the changes were made. Control strategies were implemented to complement the new equipment and have reduced the amount of unconditioned air entering the building during low or no occupancy, and reduced the fan energy used. The LCC Theater main AHU had the outside air and return air dampers and actuators replaced. The existing dampers were no longer moveable or functioning. This allowed more unconditioned air to enter the space than was necessary. A CO 2 sensor was added for varying occupied conditions. Control 15

18 strategies were implemented to utilize the new equipment and have reduced the amount of unconditioned air entering the building during low or no occupancy. The WCC Imaginarium standalone DX split system was removed and replaced with a York AHU fitted with a chilled water coil and VFD. The unit was then connected to the campus CHW loop. The replacement of the DX equipment and addition of the VFD has improved the cooling efficiency. The CO 2 control has reduced the amount of unconditioned air entering the building during low or no occupancy. Exhaust Fans for the WCC Imiloa Science building were at the end of their useful life and were replaced with new corrosion resistant units and exterior ductwork. There was no energy savings claimed with this measure, however maintenance will be reduced and adequate ventilation will now be maintained. During development ECMs were modeled using equest, with the exception of the Exhaust Fans at WCC Imiloa. Post installation installed equipment and measures were verified to be consistent with the scope of each ECM and the model was checked for accuracy against the data. In order to verify CO 2 controls the outside air damper position and measured CO 2 content were recorded. Screen captures of the recorded trends show the damper closed (or min position) when the CO 2 content is low and open when CO 2 rises. To verify the VFDs are working properly the duct static pressure is recorded. The VFD should maintain a static pressure set point. Additionally, fan speed may be recorded and compared to the duct static pressure, showing the fan speed modulate as needed. Trend records can be found in the Appendix. Additional records exist for most equipment and can be requested if needed. Key performance parameters that were trended are listed below: Static Pressure and setpoints Damper positions Supply, return, and exhaust fan status Occupied & unoccupied schedules VFD output and setpoints ECM 9C1 & C2 - HVAC Replacements (KCC PTAC) *Year 4 **Year 4 ECM 9C1 & 2 HVAC Replacement kwh Avoidance Verified Savings Actual Savings Kapiolani Community College 219,796 $58,457 $49,696 There are no changes from previous year. 16

19 Scope Overview with As-built conditions: This measure replaced the floor (C1) and ceiling (C2) water cooled heat pumps (PTAC) in the Iliahi, Ilima, and Kaulia buildings. The new units are more efficient and have automatic isolation valves. Additionally, VFDs were installed on the condenser water pumps. This ECM utilized the recent investment UH had made in upgrading the cooling towers and condenser water loops. The higher efficiency of the new heat pumps as well as new control strategies to take advantage of the VFDs and isolation valves will help the campus greatly reduce the conditioning cost of these three buildings. Insulation was replaced on the floor units during Year 3, this change does not affect savings. During development the energy savings for this ECM was modeled in equest based on the improved EER ratings of the new equipment and the conversion to a variable pumping design. Post installation energy efficiencies of the new equipment were verified to validate the inputs in the model. In order to confirm the variable pumping worked as designed the differential pressure and set point were recorded. The trends show that the VFD adjusts pump speed to maintain the set point. Key performance parameters that were trended are listed below: Differential Pressure and set points VFD output and set points ECM 10 Central CHW Plant Variable Pumping ECM 10 Central CHW Plant Variable Pumping kwh Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Honolulu Community College 147,313 $41,893 $38,964 Leeward Community College 765,638 $210,683 $200,674 Windward Community College 263,896 $73,225 $58,928 Total Avoidance 1,176,847 $325,801 $298,566 Windward campus increased the chilled water usage during Year 4. The increased usage was due to additional buildings and some increased scheduled run times at Imiloa. The increase in usage magnifies the Year 4 Savings. Scope Overview with As-built conditions: This ECM created new variable chilled water pumping at all three campuses. Three-way valves were replaced with two-way valves and new pumps with VFDs were added to utilize this strategy. The old system was a constant volume design, pumped the same gallons at all times regardless of need. The new variable system is demand based and will only pump water through the valves that are open for cooling; greatly reducing the energy needed to cool the campuses. At the HCC chilled water plant the old constant volume chilled water pumps were replaced with new larger pumps and VFDs. By adding the larger primary chilled water pumps, existing individual chilled water booster pumps could be removed at campus buildings to complete the new pumping circuit. Three-way valves were replaced with new two-way valves in able to utilize the variable pumping 17

20 strategy. VFDs were added to the cooling tower fans to increase the energy efficiency of the condenser water loop. Control strategies were implemented to take advantage of the new equipment. During Year 2 JCI implemented central plant optimization to increase the project benefits. VFDs were installed on the condenser water pumps and a demand based control strategy was implemented. The LCC Plant was completely renovated. Three existing chillers were removed and replaced with one Smardt 400 ton WA 3 magnetic bearing compressors chiller and one York 400 ton YK centrifugal chiller. Both chillers use VFDs to vary the chillers output for the required load in order to minimize energy use. New VFD Primary, VFD Secondary CHW pumps and VFD Condenser Water (CW) pumps replaced the existing constant volume pumps. Remotely located booster pumps were removed or bypassed. Three-way valves were replaced with two-way valves, and existing two-way valves were retrofitted with new electronic actuators. Two new Evapco two cell cooling towers replaced the outdated cooling tower with VFDs controlling the four new fan motors. Two filter circulating pumps were also installed with the tower. A CPECs control strategy was incorporated with the Metasys system in order to optimize the CHW Plant for the best possible performance. At WCC two chiller plants at WCC were upgraded to Primary variable flow. The Akoakoa plant had both CHW pumps replaced and new VFDs added to the system. Three-way valves in Akoakoa had a manual isolation valve in the bypass circuit of each valve. These valves were all closed to convert the valves to two-way operation to fully utilize the primary pumping scheme. Secondary chilled water pumps at the Palanakila plant were removed along with their VFDs. The primary CHW pumps were replaced and new VFDs were added to the system. The chiller equipment in Imiloa was removed and all three-way valves were replaced with two-way valves. Extensive underground CHW piping was installed to connect both the Akoakoa and Palanakila CHW plants, and add Imiloa and the Imaginarium to the new campus CHW loop. The new CHW loop combined with the variable pumping scheme has provided the campus with a modern CHW system that can utilize the latest chiller plant controls and improve cooling efficiency. During Year 2 JCI implemented central plant optimization to increase the project benefits. VFDs were installed on the condenser water pumps and cooling tower fans, while a demand based control strategy was implemented. During development this ECM was modeled in equest. Post installation energy efficiencies of the new equipment were verified to validate the inputs in the model. The baseline chiller plant kw/ton was output from the verified equest model. A direct comparison between measured kw/ton and the baseline kw/ton were used to calculate savings as shown in the tables below. Tables of the recorded measurements are available in the Appendix. Chiller Plant Efficiency General Savings Calculation: kwh Avoided = (Annual Ton-hours x Baseline kw/ton) (Annual Ton-hours x Measured kw/ton) 18

21 HCC Total ton-hours 860,975 Contract Savings Estimate (kwh) 93,854 Baseline kw/ton Req'd kw/ton for Prev Savings Measured kw/ton Actual Savings (kwh) 147,313 *Actual ton-hours LCC Total ton-hours 1,921,783 Contract Savings Estimate (kwh) 311,825 Baseline kw/ton Req'd kw/ton for Prev Savings Measured kw/ton Actual Savings (kwh) 765,638 *Actual ton-hours WCC Total ton-hours 1,163,051 Contract Savings Estimate (kwh) 223,177 Baseline kw/ton Req'd kw/ton for Prev Savings Measured kw/ton Actual Savings (kwh) 263,896 *Actual ton-hours The key parameters that were used to verify this measure are as follows: CHW Supply and Return temperatures CHW flows in GPM Plant kw (Chillers, CHW pumps, CW pumps, CT fans) ECM 12 - Kitchen Exhaust Controls *Year 4 **Year 4 ECM 12 Kitchen Exhaust Controls kwh Avoidance Verified Savings Actual Savings Kapiolani Community College 45,810 $12,184 $10,358 Leeward Community College 74,351 $20,459 $19,487 Windward Community College 26,847 $7,449 $5,995 Total Avoidance 147,009 $40,092 $35,840 There are no changes from previous year. 19

22 Scope Overview with As-built conditions: Select kitchen exhaust hoods at the KCC, LCC, and WCC were retrofitted with a new Melink Intelli-Hood II Demand Ventilation Systems to control the kitchen exhaust and their associated makeup air fans. Additional fans were retrofitted at both KCC and WCC above the original scope of the contract. The Melink system includes optical and temperature sensors mounted in the exhaust hoods, Melink controllers, VFDs installed on the supply and exhaust fans, as well as keypad controls installed in the kitchen spaces. VFDs were mounted in mechanical/electrical rooms or ceiling spaces. The system reduces fan motor speeds with inputs from the optical and temperature sensors. A Temperature Sensor is mounted in the exhaust duct of each hood to monitor the exhaust air temperature. A signal is sent from the Input/Output Processor to the respective Variable Frequency Drive(s) to automatically adjust fan speed for each hood based on the actual heat load. The Optic Sensors consist of an Emitter and a Receiver, which are mounted on opposite ends of the kitchen hood. An infrared beam spans the length of the hood to detect smoke/vapors generated by the cooking appliances. Upon detection, a signal is sent to the Input/Output Processor, which automatically ramps the fan(s) up to 100% speed. The temperature span is factory set at 75 F-90 F, which means the fans run at minimum speed at 75 F and increase proportionately to 100% speed. This is a non-measured ECM, however calculations were completed on the additional fans and the savings were added to the original savings amount for the contract. The savings calculations are available in the Year 1 Report Appendix. The equipment was verified to be installed and operating as expected. ECM 14 - Electrical Sub-Metering ECM 14 Electrical Sub-Metering kwh Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Honolulu Community College 58,499 $16,636 $15,473 Kapiolani Community College 87,564 $23,288 $19,798 Leeward Community College 65,638 $18,061 $17,204 Windward Community College 71,589 $19,864 $15,986 Total Avoidance 283,289 $77,849 $68,461 There are no changes from previous year. Scope Overview with As-built conditions: The purpose of this measure is to provide and install electrical power meters on select buildings. These power meters are integrated into the building automation system. The points are trended and a historical database is maintained within Johnson Controls Facility Performance Indexing (FPI) tool. The point information is made available to the Smart Display Kiosks. This is a non-measured ECM. The values in the table have been agreed upon in the contract. Meters were verified to be installed and operating as expected. 20

23 ECM 16 Irrigation Controls ECM 16 Irrigation Controls kgal Avoidance Year 4 Verified Savings Kapiolani Community College 7,060 $110,554 Leeward Community College 2,381 $37,284 Windward Community College 0 $0 Total Avoidance 9,441 $147,838 No savings was claimed for the WCC irrigation system because WCC was not paying the state hospital for use of the water from the cistern. The full Year 4 savings at LCC was claimed as the actual usage could not be verified due to the campus manually watering the landscape. Some controllers were offline at KCC. While offline the controllers operated like a time clock system, and do not record runtime. Adjustments were made to the KCC usage calculations due to this issue. Scope Overview with As-built conditions: WeatherTrak automatic irrigation control systems were installed for weather based monitoring and managing the campus irrigation systems. Existing time based irrigation controllers were replaced with new controllers which receive landscape hydration information through a mobile network to adjust and optimize the irrigation schedules based upon the previous day s evapotranspiration rate. In addition to adding the WeatherTrak controllers to the irrigations systems at each campus other distribution modifications were made as follows. At KCC spray heads and control valves were replaced, existing control wiring was replaced or repaired, and existing distribution piping repairs were made. At LCC the entire distribution system was upgraded (spray heads, valves, wiring, and piping). At WCC only minor repairs were needed including a few spray heads and control wire breaks. The WCC irrigation system was fed by a cistern operated by the state hospital. The cistern was in need of repairs and not able to be filled completely. The state hospital was limiting WCC s use due to these constraints. JCI added a new fill line into the irrigation system in lieu of an irrigation sub-meter. The key variable impacting the irrigation savings is weather, and this variable will be tracked on an annual basis to provide data to adjust the irrigation savings upward or downward according to how the weather for the performance year compares to the average weather data used to project the water savings. The irrigation water usage are tracked and analyzed. Runtime reports are reviewed and the total usage will be compared to the baseline usage. Tables of the recorded measurements and savings calculations are available in the Appendix. 21

24 ECM 17 - Water Conservation ECM 17 Water Conservation kgal Avoidance Year 4 Verified Savings Honolulu Community College 1,775 $27,799 Kapiolani Community College 7,176 $112,373 Leeward Community College 2,716 $42,522 Windward Community College 2,327 $36,444 Total Avoidance 13,995 $219,138 There are no changes from previous year. Scope Overview with As-built conditions: Existing washroom sanitary fixtures throughout the four campuses were replaced with more water-efficient fixtures. The intent of this measure was to reduce water consumption and wastewater production. The scope of work includes the one-for-one replacement of existing sanitary fixtures in restrooms or the retrofit of existing fixtures and valves to decrease water usage. Water fixtures operate as before, but consume less water. This measure included retrofitting the following equipment to the corresponding flow rates: Gallons Per Flush (GPF) Flushometer and Tank toilets replaced with 1.28 GPF fixtures 1.5 and 1.0 GPF Wall-hung urinals replaced with high efficiency GPF type fixtures Sink faucet retrofitted to operate at 0.5 Gallons Per Minute (GPM) flow rates Toilet and Flush Valve Replacement All existing 3.5 GPF fixtures (china and flush valves) throughout the campuses were replaced with new china and corresponding 1.28 GPF valves. All existing ADA approved fixtures were replaced with units that satisfy ADA criteria; non-ada toilets were not upgraded to ADA standards. These reduced flow toilets provide an average of 60% water savings over existing units. In some cases, existing 1.6 GPF toilets were not replaced with the new 1.28 GPF fixtures. During installation, additional numbers were added to the original audit for these items. Urinal and Flush Valve Replacement Nearly all 1.5 and 1.0 GPF urinals were replaced with new high efficiency GPF urinals and flush valves. Existing ADA urinal fixtures were replaced with like for like fixtures. During installation, additional numbers were added to the original audit for these items. Sink Aerators Restroom and hand washing sinks, on average, consume 2.0 GPM. Included in this measure was the installation of 0.5 GPM spray type, pressure-compensating aerators for those faucets with flow rates in excess of 1.0 GPM. These aerators regulate the flow rate to 0.5 GPM with water pressures between psi. The aerators provide adequate water flow to complete the tasks performed in these sinks and deliver an average 75% savings over the existing aerators. 22

25 Single Faucets without aerators During installation, a large number of single faucets were found to have no provision for aerators. These faucets were not changed out to due to the extra cost involved. Post installation, one time flow measurements were performed on existing fixtures as well as the new and retrofit fixtures and used to verify the savings for this ECM. This one time measurement process was completed at the end of Year 1 and verifies savings for the term of the contract. ECM 18 - PC Power Management ECM 18 PC Power Management kwh Avoidance *Year 4 **Year 4 Verified Savings Actual Savings Honolulu Community College 9,447 $2,687 $2,499 Kapiolani Community College 42,074 $11,190 $9,513 Leeward Community College 26,171 $7,202 $6,859 Windward Community College 74,501 $15,337 $12,343 Total Avoidance 152,193 $36,416 $31,214 Analysis of the Surveyor Database for Year 4 shows the campuses have extra licenses that are not being used. More savings would be realized if the existing licenses were installed on more campus computers. No Year 4 data was available from WCC. Year 3 kwh Avoidance value was used as a prior and regressed toward the expected level of expected savings during project development. Campus Licenses Allocated Remaining Honolulu Kapiolani Leeward Windward Total Scope Overview with As-built conditions: This measure installed Verdiem PC power management software to provide network level control to determine, change, and synchronize power settings for networked PCs. The Surveyor software was deployed by the campus IT staff. Computers, which are left on, are suspended into a maximum energy savings mode; after a predetermined amount of time of non-use has elapsed. Surveyor is used to both control and measure the savings of this ECM. In some cases, actual savings did not meet savings estimates. It was found that in these cases the PC usage was minimal and computers were shut down at the end of their sessions. The key variable for this measure is the operating hours of the computers on each network during both the pre and post retrofit periods. The baseline was established for each campus, after the Surveyor software was installed, but not enforced. The fixed variable for this measure is the combined kw load for all of the computers on each network that are controlled by the PC monitoring software. For purposes, once the 23

26 kw load is established it will not be altered throughout the performance period, unless more units are added to the network. Copies of the Verdiem reports can be found in the Appendix. ECM 19 - Trash Management ECM 19 Trash Management Year 4 Verified Savings Honolulu Community College $21,373 Kapiolani Community College $26,717 Leeward Community College $11,516 Total Avoidance $59,606 Overall, this ECM provided the UHCC system cost savings, but fell short of the guaranteed amount. The savings in trash hauling can be increased by taking the following actions. 1. HCC limit compactor hauling to when the compactor is full. 2. KCC remove additional trash bins and limit compactor hauling to when it is full. Scope Overview with As-built conditions: This measure installed a 35-cubic yard trash compactor which will reduce the number of trash pickups by increasing trash load densities. Each campus currently has multiple locations for trash collection, and the new compactor will be in a single location. The compactor will be remotely monitored for fullness using American Trash Management s (ATM) SmartTrash system. SmartTrash includes a remote computer mounted on the compactor to record all the information generated by the compactor s operation. Analysis of the bill data found a common result. The trash compactor costs were less than forecast at each campus, however each campus also kept trash bins. Originally, the savings guarantee under the criteria that all trash bins would be replaced with one trash compactor per campus. Operationally, the campuses found the potential removal of all trash bins untenable. A review of HCC trash bills was particularly insightful, as it lead to the evidence that the original savings analysis was not realistic. Four of HCC s trash bins are off site, and obviously these trash bins cannot be removed due the addition of a trash compactor at the main campus. Taking the unrealistic original assumptions into account the actual trash costs, including compactor plus bins, are compared to the baseline cost. The process for this measure verifies collected trash disposal bill data for each facility. The number of reduced trash pulls (pick up) will be measured and multiplied by the cost per each pull as the dollar savings for this ECM. The annual campus census of students and staff will be compared to the baseline data. Adjustment to the savings calculations will be made if the census increases or decreases noticeably from the baseline census. Frequency of special events and rentals will also be observed and an adjustment to the savings will be made for their impact on the trash volume, if necessary. A summary of the bill data analysis is located in the Appendix. The live calculations and copies of invoices are included in the accompanying CD. 24