Solar Panel Cost in
Washington D.C.

Updated 10/16/2021

How much do solar panels cost in Washington D.C. in 2021?

As of October 2021, the average solar panel cost in Washington D.C. is $3.31/W. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Washington D.C. ranges in cost from $14,068 to $19,032, with the average gross price for solar in Washington D.C. coming in at $16,550. After accounting for the 26% Federal Investment Tax Credit (ITC) and other state and local solar incentives, the net price you'll pay for solar can fall by thousands of dollars.

Importantly, these costs are typical for solar shoppers comparing solar quotes on the EnergySage Marketplace. When you compare quotes for solar panels on EnergySage's competitive solar marketplace, you can expect to see prices up to 20% lower than working with a single solar company.

Average solar panel cost by system size in Washington D.C.

System Size System Cost System Cost (after ITC)
3 kW $9,930 $7,348
4 kW $13,240 $9,798
5 kW $16,550 $12,247
6 kW $19,860 $14,696
7 kW $23,170 $17,146
8 kW $26,480 $19,595
9 kW $29,790 $22,045
10 kW $33,100 $24,494

2021 average solar panel cost graph in Washington D.C.

for a 5kW system

Great Price
$14,068 or less
Market Average
Above Market
$19,032 or more

Solar installation costs do not include the 26% Federal Investment Tax Credit or local incentives. Learn more about local DC incentives, tax credits & rebates.

Payback Period

4.60 Years

20-Year Savings


Cost per Watt


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