District of Columbia / Washington

Is solar worth it in Washington?

Potomac Electric Power Co averages 16.6¢/kWh. With 4.4 peak sun hours a day, a typical 8.0 kW system makes ~10,384 kWh a year and saves about $1,721 in year one.

11.0years to pay off
Electric rate16.6¢per kWh
Peak sun4.4hrs/day
System8.0 kW≈$22,000
25-yr net$40,754after cost

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