solar PV system worksheet
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$15,000.00PV system costhttp://www.dmsolar.com/solar-gridtie-system.htmlnote: winter=Dec+Jan+Feb, then MarAprMay,
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8930watts peak$/kWhde-rate#6.50%rate of return on $Jun+Jul+Aug, and Sep+Oct+Nov
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3.47sun-hrs (winter)$0.080.773.00%utility inflation
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5.73sun-hrs (spring)$0.080.77update notes: set de-rate to 0.77 per http://rredc.nrel.gov/solar/calculators/PVWATTS/system.html, had to lower rate of return on cash to 6.5% to break even
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6.67sun-hrs (summer)$0.100.77
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5.17sun-hrs (fall)$0.080.77
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yearkWh generated$ valueif invested
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winterspringsummerfallwinterspringsummerfall(year)(int.pays elec $)
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12145.343626.914217.343232.91$171.63$290.15$421.73$258.63$1,142.14$14,832.86
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22145.343626.914217.343232.91$176.78$298.86$434.39$266.39$1,176.42$14,620.58
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32145.343626.914217.343232.91$182.08$307.82$447.42$274.38$1,211.70$14,359.21
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42145.343626.914217.343232.91$187.54$317.06$460.84$282.62$1,248.06$14,044.50
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52145.343626.914217.343232.91$193.17$326.57$474.67$291.09$1,285.50$13,671.89
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62145.343626.914217.343232.91$198.96$336.37$488.91$299.83$1,324.07$13,236.50
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72145.343626.914217.343232.91$204.93$346.46$503.57$308.82$1,363.78$12,733.09
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82145.343626.914217.343232.91$211.08$356.85$518.68$318.09$1,404.70$12,156.04
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92145.343626.914217.343232.91$217.41$367.56$534.24$327.63$1,446.84$11,499.34
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102145.343626.914217.343232.91$223.93$378.58$550.27$337.46$1,490.24$10,756.56
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112145.343626.914217.343232.91$230.65$389.94$566.78$347.58$1,534.95$9,920.79
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122145.343626.914217.343232.91$237.57$401.64$583.78$358.01$1,581.00$8,984.64
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132145.343626.914217.343232.91$244.70$413.69$601.29$368.75$1,628.43$7,940.21
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142145.343626.914217.343232.91$252.04$426.10$619.33$379.81$1,677.28$6,779.04
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152145.343626.914217.343232.91$259.60$438.88$637.91$391.21$1,727.60$5,492.08
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162145.343626.914217.343232.91$267.39$452.05$657.05$402.94$1,779.43$4,069.64
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172145.343626.914217.343232.91$275.41$465.61$676.76$415.03$1,832.81$2,501.35
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182145.343626.914217.343232.91$283.67$479.58$697.06$427.48$1,887.79$776.15
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192145.343626.914217.343232.91$292.18$493.97$717.97$440.31$1,944.43-$1,117.83
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202145.343626.914217.343232.91$300.95$508.78$739.51$453.51$2,002.75
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$30,689.92
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Sheet1