Philadelphia, PA 19121 solar market data
Updated February 16, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Philadelphia 19121 has 111 solar installations at a median installed cost of $7.34/W, recent growth not yet measurable, and a Market Score of 33 — higher than 9% of U.S. zip markets.
Versus Pennsylvania
How 19121 compares with the state
Installed cost
$1.35/W above
state median $5.99/W
Market score
33 vs 50
Pennsylvania scores 50
Share of state installs
0.13%
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
19121 by year
21 installs in the trailing twelve months vs 43 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 19121
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | EDF RENEWABLE ENERGY | 1 | 0 | 2.76 | $7.34 |
| 2 | ENDLESS MTN SOLAR SERVICES | 1 | 0 | 2.87 | $7.66 |
| 3 | EOS ENERGY | 1 | 0 | 25.3 | $5.47 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 19130 Philadelphia | 1.5 km | 127 | $6.90 | 33 |
| 19132 Philadelphia | 1.6 km | 130 | $8.20 | 29 |
| 19122 Philadelphia | 2.4 km | 89 | $12.31 | 33 |
| 19123 Philadelphia | 2.6 km | 63 | $7.29 | 32 |
| 19133 Philadelphia | 3.0 km | 41 | — | 42 |
| 19103 Philadelphia | 3.3 km | 29 | $7.53 | 32 |
Same city
Other zips in Philadelphia
Equipment
What gets installed in 19121
Share of systems with a recorded brand
Modules
CSI SOLAR66.7%
GE ENERGY33.3%
Inverters
ENPHASE ENERGY33.3%
FRONIUS USA33.3%
PV POWERED33.3%
Frequently asked
Quick answers about 19121
How many solar installations are there in 19121?
SolarDNA counts 111 active solar installations in Philadelphia 19121, 110 of them residential, with data through February 16, 2026.
How much does solar cost in 19121?
The median residential system in 19121 cost $7.34 per watt over the trailing twelve months, $1.35/W above the Pennsylvania median.
Is solar growing in 19121?
Recent growth cannot be measured yet for 19121: too few recent installs (data runs through February 16, 2026).
Who installs solar in 19121?
EDF RENEWABLE ENERGY, ENDLESS MTN SOLAR SERVICES, EOS ENERGY lead the 3 installers with systems in 19121. The full comp set is above.
Is 19121 a good market for solar sales?
19121 scores 33 out of 100 (Weak, higher than 9% of U.S. zip markets). With under 500 installations the score is provisional.