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GREENER HOMES PILOT PROGRAM ENERGY REDUCTION

1. O M 11 Laundry p Appain CES 11 E O RN REUS M OUR ENS MR OERGU E UR ENUEe 12 12 o mom 12 Operation and Maintenant crccassncnccrnsnsessesswerseviueenswasensincnvbedesessanouduedaneesancaenneubsesaesyeensacdaednencounseboussadasmesawensoedaediames 12 Management AOI epu duel TD 13 SECTION IL EVALUATED MEASURES btt Feu eA xa uU Eai 14 TABLE OF FIGURES Table 1 Benchmarking Results and Performance Target Table 2 Energy Reduction Plan Summary Metrics Table 3 Detailed List of Recommended Measures for Entire Project Table 4 Benchmarking Tool amp Design Assistant APPENDICIES Appendix A Analysis of Fuel Bills Water Savings Calculations Appendix B Modeling Reports Appendix C Refrigerator Inventory amp Bath Fan Info Appendix D Table of Evaluated Measures EXECUTIVE SUMMARY A comprehensive energy assessment that evaluated a suite of potential measures to achieve the facility s energy performance target and improve the health safety comfort and security of its residents and staff was conducted at Eastern Avenue Apartments The findings and recommendations of this assessment are detailed in Sections I and IJ Based on this initial assessment a scope of work has been propose
2. 5 NOLABEL KENMORE older older fan light missing lens cover missing lens cover ul M missing drywall ceiling 7 FRTBLAWSADiB 206 FRIGEDARE 8 FRTISHB3A02AD15 NEW FRIGEDARE O O Z O O O 9 GTSI2BBMALWW 200 GE 0 10 NOLABEL15ATR80 1980 S HOTPOINT Z O 11 TBXIBLKE 198 GE needsfancleaning 12 FRTi8H6CWi 2003 FRIGEDAIRE needsfancleaning 13 ASISFRTI5BSAWS5 2004 FRIGEDAIRE 14 ASISFRTIBBSAWS 2004 FRIGEDARE Refrigerators made prior to 2000 should be replaced TRC REPORT APPENDIX D Measure Description Evaluation Status Additional Lighting amp Appliances Apartment Level description description Super T8 Bulbs and Ballasts Not Evaluated Not Applicable description ENERGY STAR Dishwashers Not Evaluated Not Applicable ENERGY STAR Clothes Washers Evaluated see Evaluated amp Recommended Section Hardwired CFL Fixtures Not Recommended Not Applicable description Envelope see measure Air Sealing includi ther strippi Recommended Sen d c see measure Insulate Roof Deck or Attic Recommended description Insulate Walls Not Evaluated Not Applicable description HVAC Measures Boilers See Evaluated amp Not High Efficiency Boilers Not Recommended Recommended Section See measure Outdoor air reset controls Recommended description under Boiler
3. Replace steam with hydronic boilers Not Evaluated Not Applicable Energy Management System boiler temp Not Evaluated Not Applicable controls Condensate Reclamation for Steam Systems Not Evaluated Not Applicable Decentralization of Central Boiler Plants Not Evaluated Not Applicable M 30 TRC REPORT Outdoor Air Reset for Hydronic Systems Part of Boiler replacement Hot Surfaces condensate tank Not Recommended Thermostatic Radiator Valves Not Evaluated Not Applicable Furnaces High Efficiency Furnace Not Evaluated Not Applicable Remove Electric DHW tanks and plumb See measure de Recommended indirect description Separate DHW direct fired condensing boiler Not Recommended Exist HVAC distribution repairs duct sealing Not Evalmted Not Applicable etc Heat and Power on 80 unit Not Evaluated Not Applicable Replace 6 Oil with Dual Fuel System _ Not Evaluated Not Applicable Measure 15 cost prohibitive Timers on Roof Fans per code NotEvalmated Not Applicable requirement Health and Safety CO testing of all apartment gas Not Evaluated Not Applicable appliances Carbon Monoxide Detectors unless all Notbvaluad Not Applicable electric Smoke Detectors Not Recommended M p E pus and functional Mechanical Ventilation Installation or M Current condition 15 Seasonal Dehumidification Not Evaluated n satisfactory Water and Other 31 TRC REPORT Replace 2 Oil with natural gas
4. 280 pb S08 4 381 TRC REPORT Modeled Billing history Start End Fuel Natural Gas Month Month Therms Cost 3 25 2010 4 27 2010 649 833 45 2 24 2010 3 25 2010 803 98292 1 27 2010 2 24 2000 974 11327 12 29 2009 1 27 2010 1 159 13554 Totals 6 281 7 267 4 MMBtu 628 Average Cost Per Unit Total Combined MMBtu 840 Electricity kWh Costs 62 081 9 622 56 212 0 155 REPORT Actual Bill History Electric Read Date 6 25 2010 5 24 2010 4 17 2010 3 25 2010 2 24 2010 11 27 2010 12 29 2009 11 25 2009 10 28 2009 9 28 2009 8 27 2009 7 29 2009 6 26 2009 5 27 2009 4 28 2009 3 27 2009 2 25 2009 1 28 2009 12 29 2008 11 26 2008 10 29 2008 9 26 2008 8 27 2008 7 29 2008 6 26 2008 MM b i TRC Read Type Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Actual Days 32 27 33 29 28 29 34 28 30 32 29 33 30 29 32 30 28 30 33 26 33 30 29 33 29 Average Daily kWh 44 46 48 51 58 62 59 58 56 51 49 53 55 54 59 82 87 104 74 68 56 52 57 56 62 Tatal Billed kWh 1 419 1 239 1 576 1 478 1 616 1 793 2 007 1 017 1 694 1 631 1 411 1 746 1 644 1 574 1 570 2 461 2 227 3 107 2 433 1 890 1 041 1 565 1 658 1 654 1 787 Metered Demand kW 13 7 13 9 13
5. 40 of the space conditioning costs it s important to control the infiltration while maintaining good ventilation This will improve tenant comfort reduce large temperature swings and will prevent ice dams MECHANICAL SYSTEMS Space Heating All mechanical equipment is in its own self contained area in the basement Well McClain model CGB 6 650 000 BTU water filled atmospheric boiler is used for space heating and runs a continuous loop to feed the apartments units This boiler is greatly oversized at the building s current heating requirement It lacks proper indoor outdoor controls to operate the boiler This boiler should be upgraded to an ENERGY STAR boiler sized for the building s heating load and along with the appropriate boiler control system This boiler does not provide a OTRC REPORT domestic hot water The apartments use hydronic baseboard with thermostatic valves controlled by wall mounted 3 wire 24 volt mercury based dial thermostats The average temperature in the apartments units and common spaces was 72 5 degrees on a day with outside temperature of 88 degrees Combustion air 15 supplied through a large open louvered exterior vent through ductwork The following boiler combustion efficiency data was obtained on site Boiler DHW DHW Model CGB 6 COpp NA N A Draft pa N A N A Insulation was found on most but not all of the distribution pipes in the mechanical room 9 M l TR
6. 5 12 9 13 7 14 1 13 7 13 4 14 2 13 2 13 4 13 8 13 8 13 6 14 3 15 9 16 4 16 2 14 6 14 6 14 3 13 7 13 6 13 9 14 5 Demand Demand kVA kW 13 7 13 9 13 5 12 9 13 7 14 1 13 7 13 4 14 2 13 2 13 4 15 8 13 8 13 6 14 3 15 9 16 4 16 2 14 6 14 6 14 3 13 7 13 6 13 9 14 5 Load Factor 13 1456 1556 1656 1856 1856 1656 1856 1756 1656 1556 1656 1756 1756 1756 2196 2296 2796 2196 1956 1656 1656 1656 1756 1856 Price 0 10379 0 11728 0 05443 0 09626 0 03355 0 08803 0 07917 0 09204 0 09249 0 09045 0 1035 0 09618 0 10078 0 1032 0 09345 0 08197 0 00458 0 07035 0 07808 0 09417 0 09463 0 10326 0 09465 0 0881 0 09362 Delivery Energy Amount 147 28 145 31 148 82 142 08 151 18 157 04 158 90 148 82 156 67 147 53 146 04 167 93 165 68 162 44 175 03 201 74 5205 27 218 57 189 97 177 98 174 22 161 60 157 26 163 34 167 20 Supplier Charge Amount 5120 46 5106 18 142 42 133 39 146 04 162 03 181 37 145 15 145 99 140 56 5121 60 5150 47 5141 88 5139 91 5210 51 276 59 272 77 349 20 273 44 210 50 189 48 161 05 170 62 5190 80 5183 90 REPORT Gas Actual Bill History Bill To Days Meter Read Usage Usage Usage Date READ Type CCF Therms Cost 6 10 2010 30 6515 ACTUAL 187 172 199 83 5 11 2010 29 6345 ACTUAL 459 474 5559 47 4 12 2010 31 3869 ACTUAL 024 549 833 45 3 12 2010 29 3205 ACTUAL 709 803 982 9
7. around plumbing and electrical penetrations were not sealed prior to insulating Wall to ceiling connections and open knee wall spaces also need to be sealed INFILTRATION Infiltration to the apartments occurred through e minor cracks around windows e units with missing drywall ceilings above 2 x 4 drop down ceiling tiles e framing connections base of walls and tops of interior walls e electrical outlets installed on walls with interstitial space between them infiltration occurs through the top plates of the wall e plumbing penetrations which are connected to the attic space hg fe TRC REPORT around the kitchen exhaust fan ductwork knee wall wall spaces on the attic side allowing air into the walls When infiltration occurs unfiltered air moves from unhygienic unwanted areas into conditioned living spaces This can negatively influence indoor air quality and health and safety Measured Complex Blower Door Metrics Measured Blower Door Ranges cfm 50 998 to1026 Average ACH natural 79 to 87 Best Practices Recommendations Tight as possible while maintaining controlled mechanical ventilation Infiltration in air changes per hour at this facility is quite high and at least twice the ASHRAE standards A great portion of the air leakage occurs due to the missing drywall ceilings that have been covered over with tiled drop down ceiling Since air leakage in buildings can represent anywhere from 5 to
8. 2 2 1 2010 29 4496 ACTUAL 932 974 1 132 71 1 13 2010 33 3504 ACTUAL 1117 1 159 1 355 41 12 11 2009 30 2447 ACTUAL 6368 554 839 88 11 11 2009 2b 1 89 ACTUAL 415 430 5434 11 10 16 2009 31 1374 ACTUAL 217 284 257 37 9 15 2009 28 1103 ACTUAL 146 151 5158 07 8 18 2009 33 957 ACTUAL 170 177 5188 48 7 16 2009 30 38 ACTUAL 193 200 5208 11 6 16 2009 34 594 ACTUAL 285 297 5310 55 5 13 2009 30 309 ACTUAL 450 473 566 40 4 13 2009 31 9853 ACTUAL 758 780 1 042 35 3 13 2009 29 9095 ACTUAL 902 927 1 289 47 2 12 2009 29 193 ACTUAL 1 058 1 092 1 550 05 1 14 2009 33 7135 ACTUAL 1 047 1 092 51 574 92 12 12 2008 30 6088 ACTUAL 770 803 1 194 34 11 12 2008 28 9319 ACTUAL 438 4565 691 22 10 15 2008 30 4880 ACTUAL 268 284 5435 43 9 15 2008 32 45612 ACTUAL 186 194 335 15 8 14 2008 25 4420 ACTUAL 150 156 286 06 7 16 2008 33 42 6 ACTUAL 171 178 319 70 6 13 2008 30 4105 ACTUAL 259 270 5427 02 5 14 2008 30 3646 ACTUAL 402 423 5648 56 4 14 2008 31 3444 ACTUAL 705 734 1 091 38 3 14 2006 29 2739 ACTUAL 521 847 1 204 93 2 14 2008 30 1918 ACTUAL 5 8 900 51 262 34 1 15 2008 33 1040 ACTUAL 974 1014 1 433 95 12 13 2007 30 66 ACTUAL 510 836 1 205 40 11 13 2007 32 9250 ACTUAL 314 228 712 81 10 12 2007 29 6 42 ACTUAL 215 2 7 5201 50 9 13 2007 30 832 ACTUAL 179 186 5236 44 8 14 2007 29 63486 ACTUAL 174 181 5246 21 7 16 2007 32 51 4 ACTUAL 230 239 341 12 TRC REPORT Water Savings for Ea
9. C REPORT DOMESTIC HOT WATER In the same mechanical room two old 80 gallon natural gas independently fired atmospheric hot water storage tank provide DHW and these vent into the chimney These tanks run a continuous loop with circulator pumps Each tank rated at 180 000 Btus is oversized for the building s current DHW needs and are very inefficient compared to an indirect fired domestic hot water setup The water temperature in the apartment units ranges between 125 to 130 degrees All showerheads were 2 5 gallons per minute GPM all kitchen faucets were 2 2 GPM and bathroom faucet aerators were 2 0 GPM Approximately half of the apartment toilets have been upgraded from 3 5gpf to 1 6gpf VENTILATION The ventilation system for the complex consists of both kitchen range hoods and bathroom exhaust fan light combinations Each apartment is equipped with both of these fans Bathroom exhaust fans were rated at an average of 80 cfm The kitchen exhaust fans are rated at 170cfm and are functional However upon inspecting each apartment unit a few observations were made Majority of bathroom exhaust fans have been replaced by low sone noise 80 110 cfm fans with a time delay switch The time delay switch can also be a light switch Upon turning the switch on the lights and fan should both come on and when switched off the fan will continue to run for the allotted time period it was initially set up for usually 10 minutes This allows remo
10. GREENER HOMES PILOT PROGRAM ENERGY REDUCTION PLAN Eastern Ave Apartments 30 Eastern Ave Concord New Hampshire 03301 Owner CATCH Neighborhood Housing Phone 603 225 8835 Property Manager Gerald Walsh Audit Date May 26 2010 Report Contracted by New Hampshire Housing Finance Authority Report Prepared by TRC Energy Services Report Date June 24 2010 TABLE OF CONTENTS d ONU Uu iue Qr 2 SECTION EXISTING CONDITIONS 2 t Puntos 5 Building Ownership Management and Staffing cccccccccccccecccneeseeesseeeeeeeceeeeeeeeeesaaaeeeeseseeeeeeeeeeeeeeeseusaaeaeenses 5 Management 1 0 5 1 5 BVOC CUD AAC ei E T Eme 6 Energy Suppliers Metering and Electrical Systems ccccccccccccccceeeeseesesseseecccececeeeeeeaaaeessesseeeeeeceeeeeeeeeeaaaaaeagesees 6 m 6 N d Mechanical SysteMS REPRE erm 8 Doimesnc Hot WY AU NR 10 BN TNA O I 10 IAS
11. Measure 9 Low Flow Devices Existing Conditions All showerheads averaged 2 5gpm kitchen sink aerators were under 2 2gpm and bath aerators were 2 0gpm Measure Description Install 1 75 gallon per minute showerheads along with 1 0 gallon per minute bathroom aerators 1 5gpm kitchen aerators that will increase the water pressure and lower water consumption The kitchen aerator shall have the capability of jet stream or normal stream flow and also features an easy quick flip on off feature that can be used for hand washing dishes This will lower hot water usage and decrease fuel water and sewer bills In units where a handheld showerhead exists replace with handheld shower unit using 1 75 gallons or less with built in massage feature Important Assumptions Estimated savings 420 yr Estimated installed cost 400 Simple payback 0 95 year o IO TRC REPORT HEALTH amp SAFETY ISSUES Bath fans Concerns and notes on the existing bath fans listed in Appendix C should be investigated and addressed where necessary Estimated Cost unknown Other Recommendations In addition to the measures listed above there are other improvements you can consider for your building Solar Thermal Since this complex has centralized domestic hot water systems the installation of solar thermal panels on the south facing roof could produce 30 to 60 of your hot water needs annually This should be considered once the other equipment upg
12. Not Recommended Low flow Showerheads and Sink see measure Recommended m Aerators description see measure Low flow Toilets Recommended description Elevator Motors and Controls Not Evaluated Not Applicable m driven Louvers amp Not Evaluated Nor Applicable High Efficiency Motors gt 1 HP 4 hp Not Evaluated Not Applicable Variable Speed Drives gt HP 4 hp Not Evaluated Not Applicable QTRC REPORT DISCLAIMER The energy conservation opportunities included in this report have been reviewed for technical accuracy However as energy savings ultimately depend on behavioral factors the weather and many other factors outside its control TRC Energy Services does not guarantee the energy or cost savings estimated in this report All energy savings were based on the energy use for a 12 month period of actual energy utility bills TRC Energy Services shall in no event be liable should the actual energy savings vary from the savings estimated herein Estimated installation costs are based on a variety of sources including our own experience at similar facilities and contractor estimates The cost estimates represent the best judgment of the auditors for the proposed action The building owner is encouraged to confirm these cost estimates independently Since actual installed costs can vary widely for a particular installation and for conditions which cannot be known prior to in depth investigation and design TRC Energy Services do
13. am 2 Btu HDD SgFt tar the best new construction ta 25 Btu HDD SgFt far a high usage existing home Note that the limits may be slightly different for your housing type ef Heating Degree Days for the heating reference temperature of 62 Fis 6396 HDD ef Cooling Degree Days for the Cooling reference temperature of 0 Fis 0 CDD wf According to inputs an the Weather Defaults screen the heating season lasts for 8 months TREAT assumes that there is no heating during nan heating months which creates a realistic model of a building with the heating system turned off during part of the year Average Monthly Temperature of LInheated Spaces Space Mame Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Vented attic 26 31 4 56 69 76 77 The accounts for heat eschanoe with and adiacent snares and intemal nains fron Show this screen each time calculations are completed f Update T Close Help RP 8 TRC REPORT APPENDIX C Refrigerator Inventory amp Ventilation Equipment notes by unit Unit Model Year Made Brand Bathroom Fan Notes Other 1 2538612680 1989 ENE AM NM Wei 17 timer switch set to or not timer switch set tor not working _ 3 ASSFRTGRHD 2000 FRIGEDAIRE indicators of dirt or mold on ETH141PKWRO WE MAN oe bathroom
14. back 45 03 years Measure 3 Replace Table Lamp Bulbs Existing Conditions There are inefficient incandescent bulbs installed Measure Description Replace all existing incandescent floor and or table lamp bulbs with new 20 watt fluorescent mini spiral bulbs The lumen ratio of current to new bulbs should ideally be 3 1 Example current 60 watt to be changed with a 20 watt Disposal of light bulbs off site should be in compliance with state and local solid waste regulations unless otherwise instructed by the owner Important Assumptions Estimated savings 172 yr Estimated installed cost 96 Simple payback 0 56 years TRC REPORT Measure 4 Replace Old Ceiling Fixtures in Units Existing Conditions Inefficient light fixtures are installed in the units Measure Description Replace all existing incandescent ceiling mounted fixtures within the units with a 2 to 1 ratio of wattage using pin based fluorescent fixtures Glass domes should be either lightly frosted or spiral type for maximum light output e Measure and record existing light level with a hand held light meter held at the mid point between lighting fixtures If only one fixture is in the room measure at the mid point between the fixture and farthest wall The meter should be held 30 inches above the floor e Submit product information and obtain owner approval prior to ordering e Dispose the light bulbs off site in compliance with state and local solid was
15. c range Other small appliances are found on most kitchen countertops There are no dishwashers present Most apartments have 14 or 15 cubic foot refrigerators that are approximately 1 5 years old Manufacturers varied including Sears Hotpoint GE and Frigidaire Six old refrigerators 1999 must be replaced Please see spreadsheet in Appendix C Two sets of laundry equipment used by the tenants are located in the basement and owned by a private company The equipment is coin operated and not Energy Star rated so its water usage is high and inefficient No sign of corrosion or wear is present The clothes dryers are properly vented outside Although no coin collection data was available jaaa TRC REPORT based on maintenance staff interviews a total of 20 loads per week were estimated for this equipment ELEVATORS There are no elevators in the building HEALTH amp SAFETY There is a smoke detector present in each apartment unit As none of the apartments contain fossil fuel burning appliances there is no need for carbon monoxide detectors However we recommend carbon monoxide detectors in the common areas No obvious safety hazards or concerns were observed at this facility INDOOR AIR QUALITY Currently the existing fans seem to be working sufficiently with a few minor exceptions as noted on the bath fan refrigerator sheet It looks as though the building may have participated in a weatherization program in the past t
16. d in consultation with the building ownership and management that will effectively achieve energy savings in Section II The energy reduction summary metrics and the detailed list of recommended measures are presented in Tables 1 and 2 This report contains an Energy Reduction Plan ERP which details specific steps to be taken by the ownership and management at Eastern Avenue Apartments to achieve estimated energy savings This facility was benchmarked against other Housing and Urban Development HUD buildings to evaluate and compare its current energy consumption relative to similar buildings in the U S in the Benchmarking database The benchmarking results are presented in Table 3 Eastern Avenue Apartments achieved a benchmarking score of 68 This places Eastern Avenue Apartments in the 3rd quartile as compared with multi family buildings nationwide Eastern Avenue s reduction target is 28 of the building s current source energy Table 1 Energy Reduction Plan Summary Metrics Total Investment 49 537 Payback Period years 10 7 Annual Savings 4 616 Savings to Investment Ratio 1 26 288 million Btu Net Life Cycle Savings 13 092 Summer Peak 7 029 kWh Demand Reduction 6 2 kW Fuel Use Reduction 3740 eee TRC REPORT Table 2 Detailed List of Recommended Measures for Entire Project Years M P k R i i e e as i i for LCC kW 1000gals years years 1 448 12 02 4 138 Single pane 2 install Modu
17. e at the complex ENERGY SUPPLIERS METERING AND ELECTRICAL SYSTEMS The facility has a common area electric meter and an individual electric meter for each apartment unit Electricity 1s supplied by Unitil and the electrical systems appear to be in good condition Natural gas 15 master metered Natural gas is supplied by National Grid which is used for space heating and domestic hot water DHW production During the twelve month analysis period April 2009 March 2010 the facility s energy consumption was as follows Utility Blended Rate 6 281 7 267 40 1 16 therm 62 081 kWh 9 622 00 0 155 kWh Please note that the electricity consumption for all the apartment units was estimated using 250kWh month as the average consumption This average is weather normalized TRC anticipates working with the Management Company and tenants to verify this assumption Domestic water and sewer services are provided by the City of Concord Water saving measures will reflect savings on the water bills as well as quantifiable savings will result from reduced hot water demand Please refer to Appendix A for detailed utility data usage and costs ENVELOPE The building walls have approximately three and a half inches of blown in cellulose insulation from an upgrade possibly installed by the local community action energy program The ground floor is built on slab at grade level with 1 foam board 2x4 wood framing sheathing and a white clapb
18. e in order to accurately estimate the number of loads e Replace the two existing clothes washing machines with new Energy Star models Important Assumptions Estimated savings 68 yr Estimated installed cost negligible Simple payback N A Measure 8 Water Heater Replacement Existing Conditions Two old atmospheric type hot water heaters that are currently greatly oversized for the building s current hot water requirement TRC REPORT Measure Description e Disconnect and remove both existing hot water heaters and install a new indirect stainless steel tank in line with the boiler New boiler to feed a new insulated stainless steel storage tank indirect fired Provide aquastat recirculation control between boiler and storage tanks The Aquastat set point should be set at a temperature not higher than 130 e Replace existing manual mixing valves with electronically controlled automatic mixing valves to ensure controlled and accurate delivery at the faucets within the temperature range of 120 125 Ensure a storage tank temperature of 130 or per New Hampshire Mechanical Code e Insulate the uninsulated DHW hot water pipes in the basement with 1 fiberglass insulation and according to New Hampshire State Energy Conservation Construction Code e All work should be performed as per New Hampshire Building Code Important Assumptions Estimated savings 1 064 yr Estimated installed cost 1 800 Simple payback 1 69 years
19. es not guarantee installed cost estimates and shall in no event be liable should actual installed costs vary from the estimated costs herein TRC Energy Services will not benefit in any way from any decision by the owner to select a particular contractor vendor or manufacturer to supply or install any materials described or recommended in this report QTRC REPORT
20. hat addressed bath fans and proper venting along with time delay controls which are all intact OPERATION AND MAINTENANCE We recommend developing a written O amp M plan so that a successor can gain historical insight into the building its improvements and operation Adopting O amp M strategies helps efficient Operation of expensive building equipment and systems and reduces risk of early equipment failure unscheduled down time utility costs and tenant losses This facility may already be following certain O amp M practices However without written documentation efficiently accounting for the returns 1s difficult The following O amp M practices can be performed on a regular basis e Cleaning A C coils e Clean and tune boilers e Check window amp door weather strips and replace as required e Clean bathroom exhaust fan units e Clean refrigerator coils e Drain sediment e Clean DHW tanks e Check DHW temperature settings e Check for equipment corrosion TRC REPORT Database of warranties and equipment documentation e Schedule of cleanings repair e Record of completed tasks and location apartment number There are a number of other resources that may help develop a property specific O amp M plan Most of these plans suggest that around 5 to 20 can be saved on energy bills by adopting O amp M programs that target energy efficiency A few resources are included below e Fifteen O amp M Best Practices made by The U S Envi
21. ilding Operator Training amp Certification classes Such classes are available through several local state and government organizations Tying energy reduction goals to incentive compensation for the maintenance staff can have dramatic impacts on energy savings http www bpi org schedules training aspx http www eere energy gov industry bestpractices training html Q TRC REPORT SECTION II EVALUATED MEASURES This section provides an overview of measures assessed for Eastern Avenue Apartments A TREAT model for Eastern Avenue Apartments was developed TREAT compares modeled energy usage to actual energy usage with gt 90 reconciliation by end use for heat hot water base load and A C Existing conditions were assessed for all of the apartment units All common areas laundry areas and hallways were also assessed Attic spaces and walls were explored to determine insulation condition and air sealing opportunities Appliances lighting water and shell features were examined and tested in the apartments This includes measurement of water temperature and flow rates appliance name plate data examination of shell components lighting levels and quantities ambient temperatures and identification of health and safety concerns The TREAT software model represents the entire building A comprehensive suite of potential energy reduction health and safety and education amp management opportunities have been analyzed for this project Ap
22. ineer should review design e Install new boiler controls to maximize boiler efficiency including an outdoor reset control e Determine that the mechanical spaces are free of asbestos e Replace the circulation pumps with smart variable speed pumps that can provide constant and or proportional differential pressure to regulate the flow as the valves open and close similar to the Wilo Stratos or Grundfos Magna TRC REPORT e Install boiler water treatment system and hydraulic separator to balance multiple circuits and reduce scale and dirt build up in piping Dirt and scale build up in piping insulates the piping and results in more boiler combustion heat going up the chimney and reducing efficiency e Install CO sensor in boiler room e Seal off open combustion air duct with the new sealed combustion boiler system The existing motorized air louvered vent into the boiler should remain inoperable until future summer heat in the mechanical room would warrant a need to provide outside air to the space e Installer shall provide training to the owner or management staff to demonstrate proper use of the system and its applicable controls Deliver the user s manual including measurement reports warranties and approved submittals e Installation must meet New Hampshire State Energy Conservation Construction Code Important Assumptions based on a stand alone installed measure Estimated savings 577 yr Estimated installed cost 26 000 Simple pay
23. ing Location Concord NH Annual CDD 328 328 HERREN Entire IMPORTANT Annual entries should correspond Building Percent of Units Percentof Gross to the same time period as the pre post retrofit Gross Floor Number of with Laundry Floor Area Percent of Gross annual consumptions reported below Pre or Area sqft Family Units Hookups Heated Floor Area Cooled post retrofit values must be provided to score your building 17 101 14 100 0 Annual Energy Consumptions and Costs IMPORTANT Entries should represent 12 continuous months of consumption Pre Retrofit Post Retrofit Electricity Natl Gas Propane Fuel Oil District Steam Electricity Natl Gas Propane Fuel Oil District Steam Units MMBtu I Natl gas MMBtu M MMBtu MMBtu kWh M Natl gas therms MMBtu MMBtu Energy 212 628 Cost 9 623 5 977 lo of buildings 1 1 IMPORTANT Number of buildings represented by the reported energy use values above should always be equal for all reported fuels Calculated 45 39 9 52 unit cost unit unit unit unit unit unit unit unit Results Pre Retrofit Post Retrofit Your Building Average Your Building Average Score AgainstPeers 68 50 Building Site Energy Use MMBtu year 840 NA NA Building Source Energy Use MMBtu year 1 366 1 621 1 366 Site Energy Use Intensity kBtu ft2 year 49 1 NA NA Source Energy Use Intensity kBtu ft2 year 79 9 94 8 79 9 Weather normalized Percent Source Energy Use Reduct
24. ion After Retrofit Design Assistant Projected Annual Energy Consumption Electricity Natl Gas Propane Fuel Oil District Steam Units MMBtu I Natl gas MMBtu MMBtu I MMBtu Energy 188 340 Projected Percent Source Energy Reduction 28 Projected Score Against Peers Projected Building Site Energy Use MMBtu year 528 Projected Building Source Energy Use MMBtu year 985 Projected Site Energy Use Intensity kBtu ft2 year 30 9 Projected Source Energy Use Intensity kBtu ft2 year 57 6 TRC REPORT SECTION I EXISTING CONDITIONS Eastern Avenue Apartments located in Concord New Hampshire consists of 14 apartment units in one large building The building is a two story above grade building with the rear basement fully exposed Each unit does not have an exterior door with the exception of a few providing exterior access Each apartment unit comprises a kitchen dining area joined to the living room bathroom and a single bedroom This complex built in 1945 sits just off Rte 132 with the front of the building facing southwest Eastern Avenue Apartments are located in a multi family residential area not far from downtown with a few other multi story buildings surrounding it There is nearly no shading provided except by the neighboring trees on the erounds There are tall buildings nearby that provide iT W additional wind shielding On May 26th 2010 Multifamily Building Specialis
25. lating Boiler 577 45 03 0 33 17 411 NES controls l Replace Table lamp 172 690 D NN e ow se Energy Savings Measures Infiltration Reduction amp Window Replacement bs eee oo 3x 8 8 Retrigerator 3 000 4 635 725 4 14 3 46 7 380 1 Replacement 7 Energy Star Washers a s ss n 767 34 wm Water Heater 1 800 1 064 1 69 8 80 14 032 Replacement Low Flow Device 400 420 2 216 Installation Heath amp Safety Measures af NENNEN Total for Improvements 49 537 288 7029 62 102 50 4616 813 092 TOTALS 1 49 537 288 7029 62 102 90 4 616 10 73 126 13 092 Notes The SIR calculation uses a discount rate of 3 per annum The individual measures in the package are meant to work together to deliver sustained comprehensive energy savings therefore certain measures may have a negative life cycle savings Modeled price of Oil was 2 66 per gallon Modeled price of Electricity was 0 139 per kWh no energy cost escalation is factored into this formula The cost of replacement of the Energy Star washers is negligible because this equipment is owned by the Laundry Equipment Corporation of Manhester NH sao 3 A 8 TRC REPORT Table 3 Eastern Avenue Apartments Benchmarking Results Building s Description Weather Description Project Name Eastern optional entry Typical Pre Retrofit Post Retrofit S digitZip Code 03301 NotSwe Annual HDD 7554 7554 Mapp
26. loor area First floor Conditioned basement Top floor ef Each unconditioned space has atleast one surface adjacentto conditioned space ef There are unconditioned space s in the project ef Specified infiltration is within expected range ASHRAE Fundamentals handbook indicates that typical infiltration values for housing in North America vary from seasonal average of 0 2 air changes per hour for tightly constructed housing to 2 0 ACH for loosely constructed M Show this screen each time calculations are completed SS Update ff Close Help TRC REPORT E aModel Inspector Inspection Summary Building Envelope Lighting Applances HVAL Calculation Results Lighting Load First floor Yes 3130 83 1 24 Conditioned basement Yes 0 00 0 00 Vented attic Mo 0 00 0 00 Top floor es 00 0 59 Total Lighting Load i 2 10 Btu DaySgFt of Heated Area Note row for conditioned space is shown in red if the lighting load differs by more than 20 from the default Average Lighting Load wh SgFr D ay The Average Lighting Load value for this project 3 00 Ww hs gFr D ay is shown an the Advanced window of the Weather Defaults screen The Lighting load for each space in Watts and hours per day should be entered on the Lighting screen Appliance Load Natural gas 0 00 Therm 0 00 Electricity 9340 00 kwh 5 11 Propane 0 00 Gallon D t 2 0 00 Gallon 0 00 af There are appliances in the project
27. oard exterior cladding There is an existing walk out basement at the rear of the building TRC REPORT The average occupied apartment temperatures measured 72 5 degrees There are approximately 77 window openings present in the complex majority being white vinyl replacement windows in good shape They are double pane with no low e coating The lower level windows in the rear of the building are single pane with 6 over 6 individually glazed panes of glass and a few single pane glass small awning type windows All single pane windows appeared to have loose fitting metal storms The vinyl windows are in good condition with no evident seal failures The mechanicals are intact and operate well There are a total of 12 steel insulated exterior doors to the complex and generally in good condition Weather stripping is present and intact on all doors All buildings have pitch roofs with medium to dark asphalt shingles The roofing appeared to be in excellent condition A CDX wooden roof deck supports the roofing and is securely fastened to the roof trusses Soffit and ridge vents supply roof ventilation along with two non functioning thermostatically controlled gable end fans Interior attic access 1s via two full size steel insulated doors on the top floor The attic space revealed approximately 3 inches of rock wool fiber under about 11 inches of blown cellulose insulation After examining the attic flat it was apparent that many gaps
28. pendix D includes a full list of commonly addressed measures and whether or not they apply to this project The analysis in this report was conducted using the TREAT building modeling software version 3 0 27 Based on this analysis recommended energy efficiency measures are included in Table 2 They are also described in detail below Measure 1 Infiltration Reduction amp Window Replacement Single Pane Existing Conditions Envelope amp Window Replacement Single Pane Envelope Some general building construction details have not been air sealed a few units are missing drywall above their 2 x 4 ceiling tiled ceiling Overall there 1s excessive air leakage into the building aled with polyurethane foant Windows Approximately 28 existing window openings are single pane original wood framed windows Measure Description e Reduce air infiltration into the building by use of expanding foam and transparent caulking to seal building penetrations such as tops of interior walls in the attic wall ceiling junctions in the attic exposed plumbing pipe holes and chase ways both in attic and basement e Seal pipe holes under kitchen and bath sinks st i jen TRC REPORT e Seal missing drywall ceilings above acoustical tiled ceilings by taking down necessary 2x4 acoustical tiles and install 3 8 fan fold foam board above tiles so as to cause a solid air barrier to attic sealing all edges and seams with expanding foam in units
29. rades are in place Green Cleaning Products The use of earth friendly cleaning products provides better indoor air quality and environmental benefits We highly recommend integrating green cleaning products into standard maintenance practices Education and Awareness Programs Recent studies have shown that changes in occupant behavior can account for a substantial percentage of energy savings Consider a resident education outreach program which may include awareness meetings display posters or even reward programs that encourage environmentally responsible behavior Solar Photovoltaic Panels Photovoltaic panels produce electricity Since this facility has a single electric meter consider installing solar panels to reduce electricity expense Federal and State programs are available to help off set the cost of installation Operation and Maintenance Documentation A well documented O amp M plan will ensure that efficient operation of expensive building systems and reduce the risk of early equipment failure TRC REPORT Analysis of fuel and electricity bills Total Annual Energy Bill by Category 12 000 me Hot Water Ga Appliances Lighting 10 000 Cooling Heating 6 000 6 000 4 000 2 000 Base Building Eastem Ave Energy Improvements Eastern Awe Energy Base Building Improvements Savings Heating 1 598 Cooling po Lighting 379 Appliances prO Hot Water 1 700 Total 11
30. ronmental Protection Agency EPA in cooperation with the U S Department of Energy DOE http www scribd com doc 223588 12 operation and maintenance best practices http www cmhc schl gc ca odpub pdt 65893 pdf lang en Energy and Water Tune ups http www wbdg org om om php Facilities Operations Maintenance http www heritage nsw gov au docs maintenancel 1 preparingplan pdf Preparing a Maintenance Plan MANAGEMENT amp EDUCATION Resident Education Program amp Materials Recent studies show that changes in occupant behavior can account for a substantial percentage of energy savings with relatively little cost to the owners Surveys indicate that as much as 69 of the participants in Residential Education classes have implemented at least some of the recommended practices which had a direct impact on operating cost savings Resident education programs can play a key role in helping deliver this type of information to tenants At Eastern Avenue Apartments owners pay energy bills so tenant actions can have a significant influence on energy expenses Consider a resident education outreach program which may include awareness meetings display posters or even reward programs that encourage environmentally responsible behavior Also the introduction of green cleaning products will help promote good indoor air quality Building Operator Training amp Certification Consider enrolling the maintenance staff in Bu
31. stern Apartments Low Flow Showerhead Replacement Saved Measure Minutes per day 15 5 Gallons per day 300 180s Gallons per year 109 500 65 700 43 800 Cubic Feet per year 8 783 Low Flow Aerator Replacement Saved Number in Measure Minutes per day 15 Gallons per day 360 Gallons per year Cubic Feet per year 17 567 This data is purely for water and sewer savings Cost per year is based on city rates for the building REPORT APPENDIX B MODELING REPORTS TREAT file submitted electronically F aModel Inspector m x Model Base Building what is the Model Inspector Inspection Summary Building Envelope Lighting 4pplances HVAC Calculation Results ef Total area of surfaces adjacent to outdoors and ground is adequate for the building valurme ef There is an exterior ceiling or roof ef There is a floor adjacentto outdoors or ground of There is a wall adjacentto ground and a slab below grade of Total area of floor adjacentto outdoors and ground 7040 SqFt differs from total area of horizontal projection af roof and ceiling adjacentta outdoors r052 SqFt by less than 10 of Surfaces not adjacent to ground in conditioned spaces have R value of atleast R 4 The following conditioned space s have windows with single glazing which is unusual for conditioned space Conditioned basement The following heated space s have unusually low window area less than 1073 of the space f
32. t Dan Ramage and Michael McQueeney of TRC visited the project site and preformed a detailed energy assessment of the property On the day of the assessment the temperature outside was in the high 80 s with a clear sky As part of the energy assessment all of the apartment units were assessed and accounted for BUILDING OWNERSHIP MANAGEMENT AND STAFFING The building is owned by CATCH Neighborhood Housing of Concord NH The facility maintenance is performed by Gerald Walsh of MB Management and his staff Major repairs and capital improvement projects are sub contracted MANAGEMENT AND EDUCATION OPTIONS The building staff appears to have a working knowledge of energy efficiency issues but no formal training was conducted Though no written preventive maintenance schedules were evident routine maintenance tasks are performed Total utility expenses are recorded annually and consumption is gauged by cost Currently no incentive program is in place to encourage energy a p f TRC REPORT efficient behavior by the staff and residents Some residents appear to have only a rudimentary understanding of energy efficiency and its benefits BUILDING OCCUPANCY At the time of the site assessment the facility was occupied mostly by seniors With one resident per unit on average Eastern Avenue Apartments totals about 20 tenants All of the tenants are over the age of 55 and must qualify as low income for the local area to liv
33. te regulations unless otherwise instructed by the owner Important Assumptions Estimated savings 63 yr Estimated installed cost 480 Simple payback 7 59 years Measure 5 LED Exit Signs Existing Conditions Inefficient incandescent exit signs in place that also require frequent bulb replacement due to short life expectancy Measure Description Replace all existing incandescent exit signs in the common hallways with new 3 watt LED exit signs Important Assumptions Estimated savings 79 yr Estimated installed cost 360 Simple payback 4 54 years QTRC REPORT Measure 6 Refrigerator Replacement Existing Conditions Six inefficient refrigerators are currently used The operating conditions are poor resulting in high energy consumption Measure Description e Replace the six older model refrigerators with new similarly sized models rated at atleast 360kWh year Energy Star refrigerators e Ensure proper disposal of old refrigerators in accordance with the regulations e Deliver all owner s manuals and warranties to the owner Important Assumptions Estimated savings 725 yr Estimated installed cost 3 000 Simple payback 4 14 years Measure 7 Energy Star Washers Existing Conditions Two older inefficient washing machines are installed that consume excess water and require long dryer time for clothes drying Measure Description e Accurate data on current usage should first be obtained from laundry revenu
34. that use hot water The water consumption of these appliances willbe added to the building hot water demand E amp Model Inspector Inspection Summary Building Envelope Lighting Appliances HVAC Calculation Results 7 What iz the Model Inspector w Not every space in the building has roam air conditioners Room air conditioners are best modeled as having programmable thermostat with high setback temperature because typically units are not operating for the entire day Domestic hot water heater is located in the heated area Its jacket losses will contribute to useful heating of this space and will increase space cooling load w The specified mechanical ventilation for all spaces is below 0 5ACH Combustion efficiency steady state efficiency af the primary heat plant was not measured REPORT Model Inspector Base Building hal What i the Model Inspector _ Inspection Summary Building Envelope Lighting amp ppliances HVAC Calculation Results r4 Heating system output capacity adjusted by distributian efficiency and heating safety factor exceeds building load by mare than SOs ef Distribution efficiency of primary heating system is 100 which is in the reasonable range ef Heating reference temperature of B2 F is in the expected range ef Calculated heating slope of 3 97 Btu HDD SgFt is in the typical range It usually varies fr
35. val of excess moisture and odor It is important to do a routine exhaust fan grill cleaning to ensure efficient operation Unit 5 had an older fan light fixture with a missing lens cover while units 11 and 12 could use a exhaust fan grill cleaning Kitchen hoods operate on switches and according to some tenants are used sparingly All kitchen and bathroom exhaust fans appear to be vented to the outside however during any attic insulation upgrade this should be verified of i TRC REPORT LIGHTING Each apartment has on average two ceiling fixtures and a bath fan light combination All apartment lighting operates on wall switches The apartment light fixtures were mainly fluorescent with twin biax bulbs though some older incandescent fixtures are present in certain units as noted below All units had around one to four table or floor lamps using incandescent light bulbs that should be upgraded to fluorescent Lighting in the residential common areas consists of flush mounted 4 foot T 8 fixtures each containing two 32W T 8 with an advantium ballast using 62 watts each All laundry area lighting operates on wall switches Exit signs contain 32W incandescent bulbs but of the four exit signs only one was operational probably due to burnt out bulbs We recommend an upgrade to LED exit signs for longevity and savings LAUNDRY EQUIPMENT amp APPLIANCES The facility provides each tenant with a refrigerator and electri
36. where applicable Window Replacement Replace existing quantity of 28 single pane wood windows in the heated basement area with white vinyl Energy Star windows with low e and argon or krypton gas and a U value of 30 or less e Use 50 year caulking for the exterior and a minimum of a 30 year paintable caulking for the interior e Seal around all interior window trim upon installation of new windows Seal around new window frame with minimal expansion foam before installing trim e Remove existing storm windows Important Assumptions Estimated savings 1 448 yr Estimated installed cost 17 400 Simple payback 12 02 years Measure 2 Install Modulating Boiler and Controls Existing Conditions One oversized and tired boiler exists that is currently short cycling and has no controls to reduce excess fuel consumption and runtime Measure Description e Replace existing boiler with a modulating 95 thermal efficiency or greater condensing boiler system according to plans and specifications provided by a design professional using standard methods such as ACCA manual J or ASHRAE The maximum input capacity of each new condensing boiler shall be sized to provide at least 60 of the estimated peak design heating load for the buildings that it serves e The cost to develop a professional design build and specify the improvement and its components and contractual work scope should be included in overall cost A professional mechanical eng

GREENER HOMES PILOT PROGRAM ENERGY REDUCTION

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