Butler County, PA solar installation & market data
Updated October 2, 2026 By The SolarDNA Data Team
Butler County has 601 solar installations across 27 zip codes at a median installed cost of $5.22/W, installations up 58.8% over the trailing twelve months, and an installs-weighted Market Score of 39.
Active installations
601
Zip markets
27
Median cost
$5.22/W
12-mo growth
▲ 58.8%
Installers active
7
County Market Score
Good · installs-weighted across 27 zips
Best zip in Butler County scores higher than 75% of U.S. zip markets.
Versus Pennsylvania
How Butler County compares with the state
Installed cost
$0.78/W below
state median $5.99/W
Market score
39 vs 50
Pennsylvania scores 50
Share of state installs
0.68%
of 88.5K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▲ 48.7%
residential solar added in Pennsylvania, 12 months through Jul 2026
Statewide market
105.3K systems
2.8% of homes · utility-reported through Jul 2026
Next-12-month outlook: 132–178 installs (midpoint 155)
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
Butler County by year
135 installs in the trailing twelve months vs 85 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Butler County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | VOX ENERGY SOLUTIONS | 7 | 0 | 6 | $4.97 |
| 2 | ENERGY INDEPENDENT SOLUTIONS | 7 | 0 | 5 | $5.15 |
| 3 | STANDARD SOLAR | 3 | 0 | 3 | $5.22 |
| 4 | SOLAR POWER INDUSTRIES | 3 | 0 | 3 | $4.83 |
| 5 | ALTPOWER | 1 | 0 | 1 | $9.90 |
| 6 | PITTSBURG SOLAR SERVICES | 1 | 0 | 1 | $5.00 |
| 7 | ADAM SOLAR RESOURCES | 1 | 0 | 1 | $6.36 |
Zip markets
Zips in Butler County
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 16066 | 160 | $5.77 | 36 D |
| 16046 | 69 | $5.92 | 35 D |
| 16001 | 63 | $4.81 | 40 C |
| 16033 | 57 | $3.31 | 47 B |
| 16063 | 48 | — | 42 C |
| 16057 | 30 | — | 42 C |
| 16002 | 28 | $5.20 | 38 D |
| 16037 | 26 | $5.50 | 36 D |
| 16059 | 19 | $5.53 | 36 D |
| 16051 | 18 | $5.05 | 38 D |
| 16053 | 17 | $5.27 | 37 D |
| 16055 | 13 | $4.99 | 39 D |
| 16056 | 10 | $4.82 | 39 C |
| 16023 | 8 | — | 42 C |
| 16038 | 6 | — | 42 C |
| 16061 | 6 | — | 42 C |
| 16052 | 5 | $3.66 | 45 C |
| 16025 | 3 | — | 42 C |
| 16020 | 3 | — | 42 C |
| 16034 | 3 | — | 42 C |
| 16041 | 2 | $5.88 | 34 D |
| 16050 | 2 | — | 42 C |
| 16045 | 1 | — | 42 C |
| 16027 | 1 | — | 42 C |
| 16040 | 1 | — | 42 C |
| 16029 | 1 | — | 42 C |
| 16035 | 1 | — | 42 C |