Bethlehem, PA 18017 solar market data
Updated September 24, 2026Provisional score · under 500 installs By The SolarDNA Data Team
Bethlehem 18017 has 442 solar installations at a median installed cost of $6.55/W, installations down 18.8% over the trailing twelve months, and a Market Score of 30 — higher than 3% of U.S. zip markets.
Versus Pennsylvania
How 18017 compares with the state
Installed cost
$0.56/W above
state median $5.99/W
Market score
30 vs 50
Pennsylvania scores 50
Share of state installs
0.50%
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: 53–65 installs (midpoint 59)
Trailing-12-month installs carried forward at half the observed growth rate (capped at ±30%), with a ±10% band. Not a forecast of permits or policy.
Growth & pricing
18017 by year
65 installs in the trailing twelve months vs 80 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in 18017
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | ASTRUM SOLAR | 5 | 0 | 8.59 | $5.95 |
| 2 | HEAT SHED | 4 | 0 | 5.16 | $6.55 |
| 3 | KEYSTONE HOME ENERGY SAVERS | 2 | 0 | 3.06 | $9.91 |
| 4 | SONIC DEVELOPMENT | 2 | 0 | 7.75 | $6.96 |
| 5 | SUNTRICITY POWER | 2 | 0 | 5.98 | $7.33 |
| 6 | BORREGO SOLAR | 1 | 0 | 245.18 | $4.67 |
| 7 | PENN RENEWABLES | 1 | 0 | 4.41 | $8.77 |
| 8 | SOLAR ELECTRIC POWER SYSTEMS | 1 | 0 | 3.84 | $5.33 |
| 9 | SOLULAR | 1 | 0 | 5.16 | $8.75 |
| 10 | WEST SIDE ELECTRIC COMPANY | 1 | 0 | 6.3 | $6.31 |
Neighboring zips
The nearest zip markets
By distance between zip centroids
| Zip | Distance | Installs | $/W | Score |
|---|---|---|---|---|
| 18018 Bethlehem | 3.8 km | 164 | $6.00 | 35 |
| 18020 Bethlehem | 4.7 km | 295 | $5.65 | 37 |
| 18109 Allentown | 5.1 km | 116 | $4.00 | 44 |
| 18032 Catasauqua | 6.7 km | 114 | $7.09 | 33 |
| 18015 Bethlehem | 6.9 km | 143 | $6.10 | 34 |
| 18037 Coplay | 8.9 km | 86 | $6.00 | 34 |
Same city
Other zips in Bethlehem
Equipment
What gets installed in 18017
Share of systems with a recorded brand
Modules
SUNPOWER23.5%
SUNTECH POWER23.5%
MAGE SOLAR11.8%
TRINA SOLAR11.8%
AMERICAN SOLAR WHOLESALE5.9%
Inverters
ENPHASE ENERGY40.0%
SMA AMERICA25.0%
SUNPOWER15.0%
FRONIUS USA5.0%
KACO5.0%
Frequently asked
Quick answers about 18017
How many solar installations are there in 18017?
SolarDNA counts 442 active solar installations in Bethlehem 18017, 427 of them residential, with data through September 24, 2026.
How much does solar cost in 18017?
The median residential system in 18017 cost $6.55 per watt over the trailing twelve months, $0.56/W above the Pennsylvania median.
Is solar growing in 18017?
Installations in 18017 are down 18.8%: 65 in the trailing twelve months versus 80 before.
Who installs solar in 18017?
ASTRUM SOLAR, HEAT SHED, KEYSTONE HOME ENERGY SAVERS lead the 10 installers with systems in 18017. The full comp set is above.
Is 18017 a good market for solar sales?
18017 scores 30 out of 100 (Weak, higher than 3% of U.S. zip markets). With under 500 installations the score is provisional.