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47 <br />Appendix IV – Lifecycle Cost Analysis Assumptions <br />Life Cycle Cost <br />Analysis <br />Assumptions <br />Unit Value Notes <br />Energy and <br />Demand Rates <br />Summer Electricity <br />Rate <br />$/kWh $0.171 <br />https://www.xcelenergy.com/company/rates_and_r <br />egulations/rates/rate_books <br />Winter Electricity <br />Rate <br />$/kWh $0.151 <br />https://www.xcelenergy.com/company/rates_and_r <br />egulations/rates/rate_books <br />Natural Gas $/MMBtu $7.00 Xcel's Residential 12 Month average Rate <br />Water $/kgals $4.97 <br />Sewer $/kgals $6.91 <br />Funding <br />Opportunities <br />Inflation Reduction <br />Act (IRA) <br />% of <br />Capital <br />40% Toggle. <br />Grants $ $0 Toggle. <br />Rates <br />Discount Rate % 6.5% <br />Cost of Capital - <br />Developer <br />% 7.0% <br />Cost of Capital - <br />District Energy <br />% 6.5% <br />Capitalized Interest <br />Period (Years) <br />% 1 <br />Payment Periods % 30 <br />Inflation Rate % 2.9% https://pages.nist.gov/eerc/ <br />Natural Gas % 2.0% https://pages.nist.gov/eerc/ (Commercial, 25 years) <br />Electricity % 1.9% https://pages.nist.gov/eerc/ (Commercial, 25 years) <br />Water/Sewer % 2.9% <br />Equipment <br />Efficiency <br />Forced Air Furnace <br />Eff <br />% 86% ASHRAE 90.1 Minimum is 80% <br />Forced Air A/C Eff (kWe/Ton) 1.2 ASHRAE 90.1 Minimum is 13 EER, however <br />assumed seasonal COP of 3 <br />Magic-Pak Furnace <br />Eff <br />% 86% ASHRAE 90.1 Minimum is 80%