Bethlehem, PA 18018 solar market data
Updated September 30, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Bethlehem 18018 has 164 solar installations at a median installed cost of $6.00/W, recent growth not yet measurable, and a Market Score of 35 — higher than 13% of U.S. zip markets.
Versus Pennsylvania
How 18018 compares with the state
Installed cost
$0.01/W above
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
18018 by year
25 installs in the trailing twelve months vs 29 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 18018
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | KEYSTONE COUNTRY BUILDING GROUPKEYSTONE RENEWABLE ENERGY SOLUTIONS | 3 | 0 | 27.6 | $5.24 |
| 2 | SONIC DEVELOPMENT | 2 | 0 | 8.86 | $5.99 |
| 3 | ASTRUM SOLAR | 1 | 0 | 7.2 | $6.35 |
| 4 | PENN RENEWABLES | 1 | 0 | 9.68 | $6.77 |
| 5 | SOLAR ELECTRIC POWER SYSTEMS | 1 | 0 | 3 | $5.75 |
| 6 | SOLULAR | 1 | 0 | 10.32 | $8.47 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 18015 Bethlehem | 3.2 km | 143 | $6.10 | 34 |
| 18017 Bethlehem | 3.8 km | 442 | $6.55 | 30 |
| 18109 Allentown | 4.1 km | 116 | $4.00 | 44 |
| 18020 Bethlehem | 6.7 km | 295 | $5.65 | 37 |
| 18032 Catasauqua | 7.2 km | 114 | $7.09 | 33 |
| 18103 Allentown | 7.4 km | 436 | $6.62 | 34 |
Same city
Other zips in Bethlehem
Equipment
What gets installed in 18018
Share of systems with a recorded brand
Modules
SUNPOWER25.0%
SUNTECH POWER25.0%
LUMOS12.5%
REC SOLAR12.5%
SANYO ELECTRIC OF PANASONIC GROUP12.5%
Inverters
ENPHASE ENERGY55.6%
SMA AMERICA22.2%
FRONIUS USA11.1%
SUNPOWER11.1%
Frequently asked
Quick answers about 18018
How many solar installations are there in 18018?
SolarDNA counts 164 active solar installations in Bethlehem 18018, 161 of them residential, with data through September 30, 2026.
How much does solar cost in 18018?
The median residential system in 18018 cost $6.00 per watt over the trailing twelve months, $0.01/W above the Pennsylvania median.
Is solar growing in 18018?
Recent growth cannot be measured yet for 18018: too few recent installs (data runs through September 30, 2026).
Who installs solar in 18018?
KEYSTONE COUNTRY BUILDING GROUPKEYSTONE RENEWABLE ENERGY SOLUTIONS, SONIC DEVELOPMENT, ASTRUM SOLAR lead the 6 installers with systems in 18018. The full comp set is above.
Is 18018 a good market for solar sales?
18018 scores 35 out of 100 (Fair, higher than 13% of U.S. zip markets). With under 500 installations the score is provisional.