percent hours of the year heat rejected to loop percent hour building load on loop, Btuh percent hour building load on loop, Btuh

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1 HOBOKEN RESIDENTIAL C- Ground Loop Pump Calculations Central Geothermal System building load on loop, Btuh Bin hours of the year Count heat rejected to loop Condenser Loop, Pump A. percent gpm delta T hour ft head hp kw Ground Loop, Pump B percent gpm ft head hour kwhr hp kw kwhr Decentral Geothermal System building load on loop, Btuh Bin hours of the year Count heat rejected to loop Condenser Loop, Pump C percent gpm delta T hour ft head hp kw kwhr Ground Loop, Pump B percent gpm ft head hour hp kw kwhr C C

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3 C-2 Rate Structure Summary C22

4 Rate Structure Sources, Residential: C22

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9 Rate Structure Sources, Commercial: C22

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12 C-3 Load Calculation Outputs Energy Consumption Results January February March April May June July August September October November December $ kwhr kw Therms Central Geo Building Energy Shared Space Lighting Electric (kwh) 4,25.2 3,87.3 4,25.2 4,79.3 4,25.2 4,79.3 4,25.2 4,25.2 4,79.3 4,25.2 4,79.3 4, Ground Water Pumps Electric (kwh) 2, ,6.7 3, , , ,936.7,268.,268. 3, , , , FCU Supply Fans Electric (kwh) Heat Pump Cooling Electric (kwh) ,3.2 3,76.5 6,77.2 7, , ,89.5 2,53.8, Chilled Water Circulating Electric (kwh) Heat Pump Heating Electric (kwh),883.2,73.9, , Hot Water Circulating Electric (kwh),667.,5.4, , Above Combined Cost ,483,65, kw Outdoor Air Conditioning Electric (kwh) 8, 6,2 8,43 2,645 8,52 4,463 4,428 4,35 4,72,422 4,88 8, (Supply return and exhaust fans, Cost,55 944, ,72 pumps, reg coils with EW) kw Above Combined Demand kw Domestic Hot Water Heating (therms) Cost Apartment Lighting Electric (kwh) 29, ,46. 29, ,35. 29, ,35. 29, , ,35. 29, ,35. 29,295. NA NA - kw TOTALS Packaged Terminal Heat Pumps January February March April May June July August September October November December $ kwhr kw Therms Apartment Lighting kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 NA kw Domestic Hot Water Heating(therms) kwhr , Air to air Heat Pumps kwhr 2,869 44,7 2,869 68,55 3,58 36,6 44,84 47,476 27,858 5,386 85,67 2, ,6 - - Hallway Lighting 4,25 3,87 4,25 4,79 4,25 4,79 4,25 4,25 4,79 4,25 4,79 4,25-49, On-Pk Demand (kw) ,68 C33

13 Decentral Geo Energy TOTALS January February March April May June July August September October November December $ kwhr kw Therms Shared Space Lighting Electric (kwh) 4,25 3,87 4,25 4,79 4,25 4,79 4,25 4,25 4,79 4,25 4,79 4, Ground Water Pumps Electric (kwh) 3,55 3,75 5,633 5,45 5,633 4,93 5,4 5,4 5,45 5,633 5,45 3, Shared Spaces Conditioning HP Electric (kwh) 2,974 2,662 2,556 2,344 2,48,4,357,435 2,27 2,44 2,359 2, Above Combined $ ,457,499, kw Outdoor Air Tempering, all costs On-Pk Cons. ($) kwhr 5,287 3,663 5,579,329 6,65 4,352 4,97 4,73 4,83 8,256,648 5,543 kw Above Combined Demand kw Water to Air Heat Pumps (see unit selections for grouping) 8 Electric (kwh) N Electric (kwh) Electric (kwh) N Electric (kwh) Electric (kwh) /24 Electric (kwh) ,579,876,953, /24 N Electric (kwh) 2,262,75, ,833 2,26,994, , /3 Electric (kwh) Domestic Hot Water Heating (therms) kwhr Above Combined NA NA - Apartment Lighting Electric (kwh) 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 NA NA kw C33

14 Central Traditional TOTALS Buro Happold Design January February March April May June July August September October November December $ kwhr kw Therms Shared Space Lighting Electric (kwh) 4,25 3,87 4,25 4,79 4,25 4,79 4,25 4,25 4,79 4,25 4,79 4, FCU Supply Fans Electric (kwh) Chiller Cooling Electric (kwh) 22,722 5,52 8,4 9,974 3, Cooling Tower Electric (kwh) 647 3,946 9,259,843,896 7,788, Condensor Loop Pump Electric (kwh),273 5,698 9,757,52,52 8,767 2, Chilled Water Circulating Electric (kwh) Boiler Forced Draft Fan Electric (kwh),6,8, ,4, Hot Water Circulating Electric (kwh) 2,567 2,38 2,567, ,38 2, Exhaust Fans Electric (kwh) Above Combined elec cons $ ,9 2,485 2,7, kw Boiler Gas (therms) DHWH Gas (therms) Above Combined On-Pk Cons. ($) water $ Apartment Lighting Electric (kwh) 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 NA kw C33

15 Trane TRACE peak loads for Base Case model C33

16 C-4 Emissions Calculations Assumptions: Estimating Emissions Associated with On-Site Electricity Use U.S. Power Generation Mix Short Tons lbm Pollutant j /kwh Fuel kwh(999) SO 2 NO x CO 2 Particulates SO 2 /kwh NO x /kwh CO 2 /kwh Coal.77E+2.3E E+6.9E+9.E-3.28E-2 7.4E-3 2.5E+ Oil 8.69E+ 6.7E+5.23E+5 9.8E+7.E-3.54E E-3 2.E+ Nat. Gas 2.96E+ 2.E E+5.99E+8.E+.35E E-3.34E+ Nuclear 7.25E+.E+.E+.E+.E+.E+.E+.E+ Hydro/Wind 3.E+.E+.E+.E+.E+.E+.E+.E+ Totals 3.8E+2.2E+7 7.5E+6 2.9E E E E-3.38E+ Source: Electric Pow er Annual 999, Vol.II, October 2, DOE/EIA-348(99)/2, Energy Information Administration, US DOE, Washington, D.C w w.eia.doe.gov/eneaf/electricity/epav2/epav2.pdf Boiler Emissions Particles SOX NOX CO2 Defined as 6 lb/hr*.35e-5 lbm/kwh* 6 mg/kwh *.566 lb/kw-hr* lb/kwhr 4.5E-6 2.2E lb/therm E *NJ Code for particles for - mill btuh devices is 6 lb/hr, but there are no expected particles from a *Assumed from sulfer in fuel and 98% efficient boiler, linear to 3% eff elec producton *Estimated Nox from Blue Angel Rating *Molar Balance (272 MBH input and 69 kw output) New Jersey Dept of Environmental Protection's only emissions report requirement for the - mill Btuh boiler range is a particle report. Since the Vessiman boiler specificed in the original design is compliant to Blue Angel requirements, those emissions were estimated here for the 96% efficiency rating The same ratings were used for the DHWH. Calculations: Electricity Heating, Cooling, Shared Electricity and elec DHWH Apartment Lights lb Particulates lb SO2 lb NO2 lb CO2 NG Boiler and DHWH Input Therms Particles SO2 NO2 CO2 Base Case 548,68 344, E E E+3.23E+6.E+.E+.E+.E+ Central Geo 3,7 344, E E E+3 8.9E+5 8.E+ 2.37E-2.6E E+3 Decentral Geo 346, , E+2 5.2E+3 3.7E E+5.E+.E+.E+.E+ Original Design 2, , E+2 4.2E E E+5 5,54.E+ 7.3E- 3.58E- 9.9E+4 Pounds Particles per Year Pounds SO2 Pounds NO2 Pounds CO2 Pounds CO2 x Totol Pounds Base Case 574 6,734 3,965,232,789 2,328,244,62 Central Geo 45 4,869 2, ,245 8,942 92,395 Decentral Geo 444 5,22 3,69 954,88 9,54 962,83 Original Design 35 4,2 2, ,2 8, , Total kwhr site Total Mbtu site Source kwhr Mbtu Source Base Case 548,68,872,96,646,4 5,66,288 Central Geo 36,393,45,42 98,627 3,,236 Decentral Geo 346,659,82,82,39,978 3,548,47 Original Design 364,2,242, ,9 2,62,76 C44

17 Total Decrease of Energy Predicted LEED Consumption Over Base Credit Rating Case Decrease In Pounds of Emissions Base Case % % Central Geo 27% 2 to 3 27% Decentral Geo 23% to 2 23% Original Design 2% 3% Total Emission Comparison 2, 8, 4, Original Design Decentral Geo Central Geo Base Case CO2, x SOx NOx Particles C44

18 C-5a Utility Bill Calculation Assumptions H O B O K E N R E S I D E N T I A L C55

19 C-5b Utility Bill Calculations, apartment 2C (.67% Percent of Floor Area, 2.2% Percent of Building Expenses) Rate Structure Percent of Given Attributed to this Apartment Consumption Source Loads Represent Units January February March April May June July August September October November December Yearly residential.67% lighting all apartments kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 residential 25.% hp cooling 4 apartments kwhr commerical 2.2% rooftop unit whole building kwhr demand kw commerical 2.2% Remaining Bldg Elec Cons whole building $ demand kw commercial demand total kw commerical 2.2% kw demand charge building $ residential.67% DHWH Electric building kwhr charges 2.2% manag and maint whole building $ residential total kwhr residential metering $ building fees $ Decentral Geothermal total monthly residential.67% lighting whole building kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 kw commercial 2.2% Remaining Bldg Elec Cons building $ kw commercial 2.2% demand charge building $ commercial 2.2% dhwh and boiler building $ charges 2.2% manag and maint whole building $ commerical 2.2% water $ residential total kwhr residential metering $ building fees $ BH Design total monthly residential.67% lighting all apartments kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 kw commerical 2.2% Bldg Clg and Htg, Hall lighting building $ ,483,65, kw commerical 2.2% rooftop unit whole building kwhr demand kw total demand kw commerical 2.2% demand charge building $ commerical.67% DHWH gas building therms charges 2.2% manag and maint whole building $ residential total kwhr residential metering $ building fees $ Central Geothermal 2.2% Percent of Building Expenses total monthly residential.67% lighting whole building kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 residential.67% All clg and Htg building kwhr 9,6 49,69 9,6 74,637 36,449 42,47 5,3 53,767 33,945 57,677 9,757 9,6 apart kwhr 89,272 89,72,98,77,343,387,4,452 2, % DHWH Electric building kwhr charges 2.2% manag and maint whole building $ residential total kwhr 837, ,736,98,77,343,387,4,454 2, residential metering $ building fees $ Base Case total monthly C55

20 C-5b Utility Bill Calculations, duplex 6B7B (3.97%percent of floor area, 5.83% percent of building expenses) January February March April May June July August September October November December H O B O K E N R E S I D E N T I A L Rate Structure Percent of Given Attributed to this Apartment Consumption Source Loads Represent Units January February March April May June July August September October November December Yearly residential 3.97% lighting all apartments kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 residential.% hp cooling whole apartment kwhr commerical 5.83% rooftop unit whole building kwhr kw commerical 5.83% Remaining Bldg Elec Cons whole building $ demand kw commercial commercial demand $ commerical 5.83% kw demand charge building $ residential 5.83% DHWH Electric building kwhr charges 5.83% manag and maint whole building $ apart kwhr residential metering building fees Decentral Geothermal total monthly residential 3.97% lighting all apartments kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 kw commerical 5.83% Bldg Clg and Htg, Hall lightingbuilding $ ,483,65, x kw commerical 5.83% rooftop unit whole building kwhr kw total demand kw commerical 5.83% demand charge building $ x commerical 5.83% DHWH gas building $ x charges 5.83% manag and maint whole building $ x apart kwhr residential metering building fees Central Geothermal total monthly residential 3.97% lighting whole building kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 kw commercial 5.83% Remaining Bldg Elec Cons building $ kw commercial 5.83% demand charge building $ commercial 5.83% dhwh and boiler building $ charges 5.83% manag and maint whole building $ commerical 5.83% water $ apart kwhr individual metering building fees BH Design total monthly % percent of building expenses residential 3.97% lighting whole building kwhr 29,295 26,46 29,295 28,35 29,295 28,35 29,295 29,295 28,35 29,295 28,35 29,295 residential 3.97% All clg and Htg building kwhr 9,6 49,69 9,6 74,637 36,449 42,47 5,3 53,767 33,945 57,677 9,757 9,6 apart kwhr 89,272 89,72,98,77,343,387,4,452 2, % DHWH Electric building kwhr charges 5.83% manag and maint whole building $ apart kwhr,99 3,85,993 4,27 2,6 2,799 3,93 3,298 2,473 3,457 4,83,988 individual metering building fees Base Case total monthly C55

21 C-6 First Costs and Construction Breadth BH Design item Size Quantity Crew Labor Hours Price, Mat & Instal Total Labor Hours Total Price Location Adjustment DHWH Gas 55 gpm 2 Q Multi Stage Scroll Chillers ton 2 Q Centrifugal Cooling Towers 25 ton 2 Q Rooftop AHU 5 cfm Q Exhaust Fan 85 cfm 5 Q Exhaust Fan 45 cfm 9 Q Exhaust Fan 25 cfm 3 Q Fan Coil Unit.5 ton 4 Q Fan Coil Unit 2 ton 3 Q Fan Coil Unit 2.5 ton 22 Q Fan Coil Unit 3 ton 6 Q Fin tube Radiators ft 835 Q Boiler 275 MBh 2 Q Central Geothermal item Size Quantity Crew Labor Hours Price, Mat & Instal Total Labor Hours Total Price DHWH 5 gal 3 Q Brazed Plate Heat Exchanger 4 gpm Q Pressure Tank PLUM 2 2 Rooftop AHU 5 cfm Q Enthalpy Wheel 2 cfm Q Additional Duct 2 cfm 2 Q Location Adjustment Vertical Turbine Pump 5 gpm Q Test well B Well and Casing and screen 2 B Humidifyer 2 lb/hr Q Water to Water Heat Pumps 6 ton 2 Q Water to Water Heat Pumps 3 ton 7 Q Condensor Loop Pump 3 HP 4 Q Fan Coil Unit, coil and preheat coil.5 ton 4 Q Fan Coil Unit, coil and preheat coil 2 ton 3 Q Fan Coil Unit, coil and preheat coil 2.5 ton 22 Q Fan Coil Unit, coil and preheat coil 3 ton 6 Q Decentral Geothermal item Size Quantity Crew Labor Hours Price, Mat & Instal Total Labor Hours Total Price DHWH 2 Q Brazed Plate Heat Exchanger 4 gpm Q Pressure Tank PLUM 2 2 Rooftop HP 3 ton 2 Q Location Adjustment Rooftop AHU cfm 2 Q Enthalpy Wheel cfm 2 Q Additional Duct 2 cfm 2 Q Vertical Turbine Pump 5 gpm Q Test well B Well and Casing and screen 2 B Humidifyer 2 lb/hr Q Water to air HP.5 ton 2 Q Water to air HP 2 ton 9 Q Water to air HP 2.5 ton 4 Q C66

22 Packaged Terminal Heat Pumps item Size Quantity Crew Labor Hours Price, Mat & Instal Total Labor Hours Total Price Location Adjustment Packaged Terminal Air Conditioner 2 Btuh 9 Q Split system rooftop unit 5 ton Q OA supply ducts 2 cfm 2 Q Exhaust Fan 85 cfm 5 Q Exhaust Fan 45 cfm 9 Q Exhaust Fan 25 cfm 3 Q Exhaust Ducts and Vents 85 cfm 5 Q Exhaust Ducts and Vents 45 cfm 9 Q Exhaust Ducts and Vents 25 cfm 3 Q Crew Hours Plum Q- Q-5 Q-6 Q-7 Q- Q-2 B-23 Mechanical Schedule Additional Hours Well Drilling Hours BH Central Geo Decentral Geo PTHP Original Design Mechanical Cost Central Geothermal Mechanical Cost Decentral Geothermal Mechanical Cost Packaged Unitary Mechanical Cost Per Apartment Averag,2, 4,379,292,398 44,565,27,545 4, ,87 6,754 Conclusion of Construction Study The central geothermal system adds 3 hrs to the mechanical schedule compared to the Buro Happold design, but since these tasks can be done simultaneously, this does not appear to affect the critical path. The wells takes 8 full days to install, and may or may not add several days to the critical path. The domestic geothermal system takes 4 less hours for the mechanical schedule, but since the mechanical system is not the critical item for finishing, this does not appear to affect the critical path. The wells take 8 full days to install, and may or may not add several days to the critical path. The total installed costs of the Buro Happold model and the domestic geothermal models are roughly equivalent. The Central Geothermal system could be $, more due to the extra coils needed in the fan coil units. They are all approximately four times the installed cost of packaged terminal heat pumps. C66

23 Structural Study The geothermal system does not require cooling towers, which weigh more than 7 a piece. Since this beam can be likely removed after the cooling tower load is removed, it is an immediate indicator of some of the cost reductions in the structure construction if it were redesigned without the cooling towers. Area of 8x5 beam 4.7 in2 Length of beam 3' 6.5" Means cost per linear foot 44 Work hours to install.88 Predicted Minimum Savings: 594 dollars 4 hrs C66

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25 C-7 Rooftop unit, Sensible wheel life-cycle costs Central Geothermal January February March April May June July August September October November December Totals with EW kwhr 8, 6,2 8,43 2,645 8,52 4,463 4,428 4,35 4,72,422 4,88 8,389 34, monthly $,55 944, ,72 8,66 first cost 58 Yearly Savings Payback Period without kwhr 34,53 29,326 35,5 7,868,533 5,66 5,7 4,758 5,498 7,85 23,63 39, , monthly $ 2,,78 2,45, ,345 2,295 3,55 5,449 7 first cost 2 Decentral Geothermal with EW kwhr 5,287 3,663 5,579,329 6,65 4,352 4,97 4,73 4,83 8,256,648 5,543 4, monthly $ ,946 first cost 92 without kwhr 3,274 25,66 3,89 5,3 8,49 3,455 4,427 4,233 3,774,6 7,299 32,7 86, monthly $,763,495, ,9,87,5 4,59 8 first cost 36 This shows that there is not a good pay back on constructing a sensible wheel heat recovery rooftop unit. This is partially because we can only reclaim heat from 5% of our exhaust by code, and because there are no commercially available sensible wheel rooftop units. C77