Allentown, PA 18103 solar market data
Updated September 28, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Allentown 18103 has 436 solar installations at a median installed cost of $6.62/W, recent growth not yet measurable, and a Market Score of 34 — higher than 12% of U.S. zip markets.
Versus Pennsylvania
How 18103 compares with the state
Installed cost
$0.63/W above
state median $5.99/W
Market score
34 vs 50
Pennsylvania scores 50
Share of state installs
0.49%
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
18103 by year
43 installs in the trailing twelve months vs 62 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 18103
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | KEYSTONE COUNTRY BUILDING GROUPKEYSTONE RENEWABLE ENERGY SOLUTIONS | 5 | 0 | 8.02 | $6.67 |
| 2 | ASTRUM SOLAR | 2 | 0 | 11.74 | $4.70 |
| 3 | BORREGO SOLAR | 1 | 0 | 191.36 | $6.21 |
| 4 | ENDLESS MTN SOLAR SERVICES | 1 | 0 | 10.25 | $7.22 |
| 5 | KEYSTONE HOME ENERGY SAVERS | 1 | 0 | 1.8 | $8.88 |
| 6 | RENU BUILDING ENERGY SOLUTIONS | 1 | 0 | 6.9 | $7.04 |
| 7 | SOLAR ELECTRIC POWER SYSTEMS | 1 | 0 | 10.75 | $6.40 |
| 8 | SUNPOWER | 1 | 0 | 3.9 | $6.62 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 18102 Allentown | 2.3 km | 79 | $6.53 | 33 |
| 18104 Allentown | 5.1 km | 382 | $6.53 | 34 |
| 18109 Allentown | 5.7 km | 116 | $4.00 | 44 |
| 18034 Center Valley | 6.5 km | 73 | $6.45 | 32 |
| 18015 Bethlehem | 7.2 km | 143 | $6.10 | 34 |
| 18049 Emmaus | 7.3 km | 204 | $6.40 | 33 |
Same city
Other zips in Allentown
Equipment
What gets installed in 18103
Share of systems with a recorded brand
Modules
SHARP23.1%
SANYO ELECTRIC OF PANASONIC GROUP15.4%
SUNTECH POWER15.4%
GE ENERGY7.7%
HANWHA QCELLS QIDONG7.7%
Inverters
ENPHASE ENERGY69.2%
PV POWERED15.4%
KACO7.7%
SATCON TECHNOLOGY7.7%
Frequently asked
Quick answers about 18103
How many solar installations are there in 18103?
SolarDNA counts 436 active solar installations in Allentown 18103, 426 of them residential, with data through September 28, 2026.
How much does solar cost in 18103?
The median residential system in 18103 cost $6.62 per watt over the trailing twelve months, $0.63/W above the Pennsylvania median.
Is solar growing in 18103?
Recent growth cannot be measured yet for 18103: too few recent installs (data runs through September 28, 2026).
Who installs solar in 18103?
KEYSTONE COUNTRY BUILDING GROUPKEYSTONE RENEWABLE ENERGY SOLUTIONS, ASTRUM SOLAR, BORREGO SOLAR lead the 8 installers with systems in 18103. The full comp set is above.
Is 18103 a good market for solar sales?
18103 scores 34 out of 100 (Fair, higher than 12% of U.S. zip markets). With under 500 installations the score is provisional.