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United States › District of Columbia › Washington

Washington, DC solar installation & market data

Updated August 6, 2026 By The SolarDNA Data Team
Washington has 22,118 solar installations across 42 zip codes at a median installed cost of $3.74/W, installations up 33.7% over the trailing twelve months, and an installs-weighted Market Score of 57.
See Washington on the map District of Columbia market
Active installations
22,118
Zip markets
42
Median cost
$3.74/W
12-mo growth
▲ 33.7%
Installers active
0
57
City Market Score
Excellent · installs-weighted across 42 zips
Best zip in Washington scores higher than 99% of U.S. zip markets.
Versus District of Columbia

How Washington compares with the state

Installed cost
—
state median —/W
Market score
57 vs 48
District of Columbia scores 48
Share of state installs
91.04%
of 24.3K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 10.2%
residential solar added in District of Columbia, 12 months through Jul 2026
Statewide market
32.2K systems
23.9% of homes · utility-reported through Jul 2026
Next-12-month outlook: 3,448–4,666 installs (midpoint 4,057)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±15% band. Not a forecast of permits or policy.
Growth & pricing

Washington by year

3,528 installs in the trailing twelve months vs 2,639 before

Installations by year
Median installed cost, $/W DC by year
Installer comp set

Who installs in Washington

Summed across every zip in the city

Export CSV
#InstallerInstalls12-moZips$/W
Zip markets

Zips in Washington

Ranked by installations · click for the zip market

ZipInstalls$/WScore
200113,730—60 A
200193,143—54 A
200022,596—60 A
200201,910—57 A
200031,269—61 A
200321,173—51 A
200171,157—51 A
200181,147—53 A
200101,035—58 A
20001873—60 A
20016840—60 A
20012830—60 A
20009627—59 A
20015601—58 A
20007525—48 B
20008431—58 A
2002466—43 C
2000540—43 C
2003635—43 C
2003730—43 C
2006411—43 C
200067—43 C
200047—43 C
200526—43 C
200595—43 C
203194—43 C
200133—43 C
202012—43 C
202072$3.6144 C
204361—43 C
205051$4.0049 B
205201—43 C
205301—43 C
205341—43 C
205601—43 C
200271—43 C
202371—43 C
203401—43 C
204051—43 C
204081—43 C
204151—43 C
204311—43 C