CURRENT PLAN Assump&ons: 5.00% Real Discount Rate (2%, OMB Circular A-­‐94, 30yr) $ 74.90 Base Electric Price, $/MWh Base Gas Price, $/MCF (burner Lp) $ 7.23 Base Oil Price, $/gallon $ 3.50 $ 112.70 Base Coal Price, $/short ton Default Price, GHG Emission 2015 Start Price Scenario PrioriLes for improving the comparison accur 1) Cost esLmates for building heaLng distribu 2) Accurate 2012 Fuel use data and price 3) RealisLc pumping and COP for the GHSP op 4) All charges associated with water use/wate 5) ConsideraLon of different scenarios of imp 6) Inclusion of cooling system distribuLon as w ground bafery needed. Year 2012, BASE YEAR 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 10yr NPV 20yr NPV 30yr NPV $/MCF $ 7.23 $ 7.16 $ 7.30 $ 7.59 $ 7.66 $ 7.66 $ 7.74 $ 7.81 $ 7.95 $ 8.03 $ 8.10 $ 8.17 $ 8.17 $ 8.24 $ 8.24 $ 8.24 $ 8.10 $ 8.17 $ 8.24 $ 8.39 $ 8.46 $ 8.60 $ 8.75 $ 8.97 $ 9.11 $ 9.18 $ 9.33 $ 9.47 $ 9.47 $ 9.62 $ 9.76 Capital $ -­‐ $ -­‐ $ 50,000,000 $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ 45,351,474 $ 45,351,474 $ 45,351,474 10yr NPV TOTAL $ 149,154,610 20yr NPV TOTAL $ 228,341,511 Maintenance $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ NatGas, MCF 135,727 135,727 135,727 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 1,633,586 Gas Cost $ 981,306 $ 971,493 $ 991,119 $ 12,401,365 $ 12,519,473 $ 12,519,473 $ 12,637,582 $ 12,755,690 $ 12,991,906 $ 13,110,015 $ 13,228,123 $ 13,346,231 $ 13,346,231 $ 13,464,339 $ 13,464,339 $ 13,464,339 $ 13,228,123 $ 13,346,231 $ 13,464,339 $ 13,700,556 $ 13,818,664 $ 14,054,880 $ 14,291,097 $ 14,645,422 $ 14,881,638 $ 14,999,746 $ 15,235,963 $ 15,472,179 $ 15,472,179 $ 15,708,396 $ 15,944,612 $ 76,506,882 $ 140,266,706 $ 183,890,467 30yr NPV TOTAL $ 287,795,052 30yr GHG TOTAL 2,843,821 oving the comparison accuracy: for building heaLng distribuLon system changes, campus district piping, and well drilling for the GHSP+COGEN opLon. Fuel use data and price ng and COP for the GHSP opLon ociated with water use/water loss in both system types. This is substanLal for the steam system, perhaps on the same order of maginitude of different scenarios of improved building efficiency over this 30yr Lme span oling system distribuLon as well; is it cheaper to cool with the GHSP than cooling towers + chillers (keep in mind there will be some "rechar Oil, gallon 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 7,469 $/gallon $ 3.50 $ 3.15 $ 3.19 $ 3.33 $ 3.40 $ 3.47 $ 3.50 $ 3.54 $ 3.57 $ 3.61 $ 3.64 $ 3.68 $ 3.71 $ 3.75 $ 3.82 $ 3.82 $ 3.85 $ 3.89 $ 3.92 $ 4.03 $ 4.10 $ 4.06 $ 4.03 $ 4.10 $ 4.13 $ 4.17 $ 4.24 $ 4.31 $ 4.38 $ 4.41 $ 4.45 Oil Cost $ 26,142 $ 23,527 $ 23,789 $ 24,834 $ 25,357 $ 25,880 $ 26,142 $ 26,403 $ 26,664 $ 26,926 $ 27,187 $ 27,449 $ 27,710 $ 27,971 $ 28,494 $ 28,494 $ 28,756 $ 29,017 $ 29,278 $ 30,063 $ 30,586 $ 30,324 $ 30,063 $ 30,586 $ 30,847 $ 31,108 $ 31,631 $ 32,154 $ 32,677 $ 32,938 $ 33,200 $ 196,942 $ 332,776 $ 424,174 Coal, short ton 71,255 71,255 71,255 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 $/short ton $ 112.70 $ 111.57 $ 113.83 $ 118.34 $ 119.46 $ 119.46 $ 120.59 $ 121.72 $ 123.97 $ 125.10 $ 126.22 $ 127.35 $ 127.35 $ 128.48 $ 128.48 $ 128.48 $ 129.61 $ 130.73 $ 130.73 $ 131.86 $ 131.86 $ 132.99 $ 134.11 $ 135.24 $ 137.49 $ 138.62 $ 139.75 $ 142.00 $ 143.13 $ 144.26 $ 145.38 Coal Cost $ 8,030,439 $ 7,950,134 $ 8,110,743 $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ 14,928,239 $ 14,928,239 $ 14,928,239 COGEN opLon. s on the same order of maginitude as GHG cost. in mind there will be some "recharge" of the CogeneraPon Elec Pumping Energy (MWh) (MWh) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 $/MWh $ 74.90 $ 72.65 $ 71.16 $ 71.16 $ 70.41 $ 69.66 $ 69.66 $ 68.91 $ 69.66 $ 70.41 $ 71.16 $ 71.16 $ 71.90 $ 71.16 $ 70.41 $ 68.91 $ 68.91 $ 68.91 $ 68.91 $ 69.66 $ 69.66 $ 70.41 $ 71.16 $ 72.65 $ 74.15 $ 74.90 $ 75.65 $ 76.40 $ 77.15 $ 77.15 $ 77.90 Elec Gen Cost $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ Pumping Cost $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ Water Treatment Water Charges Charges Sewer Charges Insurance Salaries $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ $ -­‐ MT CO2e* 174,510 174,510 174,510 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 89,100 GHG Cost $ -­‐ $ -­‐ $ -­‐ $ 1,782,000 $ 1,782,000 $ 1,782,000 $ 1,782,000 $ 1,782,000 $ 2,673,001 $ 2,673,001 $ 2,673,001 $ 2,673,001 $ 2,673,001 $ 2,673,001 $ 2,673,001 $ 3,564,001 $ 3,564,001 $ 3,564,001 $ 3,564,001 $ 3,564,001 $ 4,455,001 $ 4,455,001 $ 4,455,001 $ 4,455,001 $ 5,346,001 $ 5,346,001 $ 5,346,001 $ 6,237,002 $ 6,237,002 $ 6,237,002 $ 7,128,002 $ 12,171,073 $ 27,462,316 $ 43,200,698