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4 <br /> <br /> <br />Community Solar Garden Subscription <br />Estimated Cumulative Savings Scenarios <br /> <br />City staff reviewed the estimated financial implications of all of the solar gardens subscriptions currently <br />available to the city. The scenarios below estimate the cost savings from the staff recommendation of a <br />subscription not to exceed 500 kilowatts. The city may request a lower subscription capacity than <br />allocated, and final capacity will depend on eligible facilities and program rules to be discussed with the <br />developers. The estimates below are subject to a number of variables and do not represent guaranteed <br />savings. <br /> <br />Table 1: Estimated Net Present Value of Subscription Agreement Cumulative Savings <br />Subscription Size Scenario 1 <br />Standard <br />assumptions* <br />Scenario 2 <br />No increase in <br />solar bill credit <br />Scenario 3 <br />Solar bill credit <br />increases by 3% / yr <br />500 kW <br />(approximately 1/3 of <br />city’s electrical demand) <br />$410,870 $15,809 $475,049 <br /> <br />*Standard assumptions provided by the Clean Energy Resource Teams calculator include: <br />• Annual increase in bill credits: 2.65% <br />• Year 1 bill credit: $0.11914/kWh for General Service; $0.14431/kWh for Small General Service <br />(inclusive of $0.02/kWh renewable energy credit payment) <br />• Discount rate: 4% <br />• Annual solar panel production factor: 1649 kWh / kW <br />• Annual decrease in solar panel performance: 0.5% <br /> <br /> <br /> <br /> <br />