Jefferson County, WV solar installation & market data
Updated September 10, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Jefferson County has 255 solar installations across 7 zip codes, installations up 72.2% over the trailing twelve months, and an installs-weighted Market Score of 39.
Active installations
255
Zip markets
7
Median cost
—
12-mo growth
▲ 72.2%
Installers active
0
County Market Score
Good · installs-weighted across 7 zips
Best zip in Jefferson County scores higher than 31% of U.S. zip markets.
Versus West Virginia
How Jefferson County compares with the state
Installed cost
—
state median —/W
Market score
39 vs 38
West Virginia scores 38
Share of state installs
9.88%
of 2.6K tracked statewide
Battery attach
—
state 0.0%
Statewide momentum
▲ 24.7%
residential solar added in West Virginia, 12 months through Jul 2026
Statewide market
5.8K systems
1.0% of homes · utility-reported through Jul 2026
Next-12-month outlook: 60–82 installs (midpoint 71)
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
Jefferson County by year
62 installs in the trailing twelve months vs 36 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Jefferson County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|