Solar Panel Cost in
Washington D.C.

Updated 10/24/2020

How much do solar panels cost in Washington D.C. in 2020?

As of October 2020, the average solar panel cost in Washington D.C. is $3.27/W. Given a solar panel system size of 5 kilowatts (kW), an average solar installation in Washington D.C. ranges in cost from $13,898 to $18,802, with the average gross price for solar in Washington D.C. coming in at $16,350. 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 $9,810 $7,259
4 kW $13,080 $9,679
5 kW $16,350 $12,099
6 kW $19,620 $14,519
7 kW $22,890 $16,939
8 kW $26,160 $19,358
9 kW $29,430 $21,778
10 kW $32,700 $24,198

2020 average solar panel cost graph in Washington D.C.

for a 5kW system

Great Price
$13,898 or less
Market Average
Above Market
$18,802 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

4.98 Years

20-Year Savings


Cost per Watt


solar quote comparison on a computer

Learn how EnergySage helps you go solar

We are your solar allies. We provide a transparent and easy shopping process, and promise you’ll have all the information you need to go solar with confidence.

Learn more about EnergySage

Top solar installers in Washington D.C.

If you are looking for solar companies in DC, here are some popular suggestions:

See more solar companies in DC arrow icon
green calculator

Want a custom solar estimate for your home?

solar calculation

True Cost of Solar Guide™ for Washington D.C.

Download EnergySage’s DIY worksheet to better understand what solar should cost in your state

Don’t get sold on the hype! Find out what solar should actually cost before you talk to your first sales rep. This PDF worksheet will walk you through the simple calculations you can make to determine what size solar PV system you need, and approximately how much it should cost.

See what solar costs in DC counties

EnergySage spans Washington D.C.! Check out solar prices in your city or town