Willow Street, PA solar installation & market data
Updated September 29, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Willow Street has 170 solar installations across 1 zip code at a median installed cost of $5.86/W, recent growth not yet measurable, and an installs-weighted Market Score of 35.
Active installations
170
Zip markets
1
Median cost
$5.86/W
12-mo growth
—
Installers active
8
City Market Score
Fair · installs-weighted across 1 zips
Best zip in Willow Street scores higher than 14% of U.S. zip markets.
Versus Pennsylvania
How Willow Street compares with the state
Installed cost
$0.14/W below
state median $5.99/W
Market score
35 vs 50
Pennsylvania scores 50
Share of state installs
0.19%
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
Growth & pricing
Willow Street by year
12 installs in the trailing twelve months vs 19 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Willow Street
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | JK MECHANICAL | 15 | 0 | 1 | $5.91 |
| 2 | KC GREEN ENERGY | 3 | 0 | 1 | $6.05 |
| 3 | SAFE SOLAR | 3 | 0 | 1 | $5.75 |
| 4 | SOLANCO SOLAR INDUSTRIES | 3 | 0 | 1 | $4.34 |
| 5 | ECLIPSE SOLAR | 1 | 0 | 1 | $5.46 |
| 6 | GREENSPRING ENERGY | 1 | 0 | 1 | $7.29 |
| 7 | SOLTERRA SOLAR | 1 | 0 | 1 | $3.83 |
| 8 | SUNLION ENERGY SYSTEMS | 1 | 0 | 1 | $7.37 |
Zip markets
Zips in Willow Street
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 17584 | 170 | $5.86 | 35 D |