Washington, DC 20018 solar market data
Updated August 6, 2026 By The SolarDNA Data Team
Washington 20018 has 1,147 solar installations, installations up 16.9% over the trailing twelve months, and a Market Score of 53 — higher than 96% of U.S. zip markets.
Zip Market Score
Excellent · higher than 96% of zips
Versus District of Columbia
How 20018 compares with the state
Installed cost
—
state median —/W
Market score
53 vs 48
District of Columbia scores 48
Share of state installs
4.72%
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: 189–231 installs (midpoint 210)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
20018 by year
194 installs in the trailing twelve months vs 166 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 20018
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| No installer has recorded systems here yet. | |||||
Equipment
What gets installed in 20018
Share of systems with a recorded brand
Modules
QCELLS NORTH AMERICA13.9%
CANADIAN SOLAR11.3%
REC GROUP10.9%
CSI SOLAR8.3%
ZNSHINE PV-TECH7.3%
Inverters
SOLAREDGE62.3%
ENPHASE ENERGY32.5%
ALTENERGY POWER SYSTEM2.0%
CHINT POWER SYSTEMS AMERICA0.9%
SUNPOWER0.9%
Frequently asked
Quick answers about 20018
How many solar installations are there in 20018?
SolarDNA counts 1,147 active solar installations in Washington 20018, 1,080 of them residential, with data through August 6, 2026.
How much does solar cost in 20018?
Not enough priced systems in 20018 to report a median.
Is solar growing in 20018?
Installations in 20018 are up 16.9%: 194 in the trailing twelve months versus 166 before.
Who installs solar in 20018?
No installer has enough recorded systems in 20018 to rank yet.
Is 20018 a good market for solar sales?
20018 scores 53 out of 100 (Excellent, higher than 96% of U.S. zip markets).