Alton, NH solar installation & market data
Updated October 2, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Alton has 44 solar installations across 1 zip code at a median installed cost of $3.31/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
44
Zip markets
1
Median cost
$3.31/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Alton scores higher than 63% of U.S. zip markets.
Versus New Hampshire
How Alton compares with the state
Installed cost
$0.13/W below
state median $3.44/W
Market score
44 vs 35
New Hampshire scores 35
Share of state installs
0.43%
of 10.2K tracked statewide
Battery attach
0.0%
state 0.0%
Statewide momentum
▼ 26.2%
residential solar added in New Hampshire, 12 months through Jul 2026
Statewide market
27.3K systems
6.5% of homes · utility-reported through Jul 2026
Growth & pricing
Alton by year
2 installs in the trailing twelve months vs 4 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Alton
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNDIAL SOLAR NJ | 8 | 0 | 1 | $3.30 |
| 2 | GRANITE STATE SOLAR | 6 | 0 | 1 | $3.22 |
| 3 | REVISION ENERGY | 5 | 0 | 1 | $3.20 |
| 4 | SUNRAY SOLAR | 5 | 0 | 1 | $3.93 |
| 5 | FRASE ELECTRIC | 3 | 0 | 1 | $2.56 |
| 6 | 603 SOLAR | 2 | 2 | 1 | — |
| 7 | ACE RESIDENTIAL SOLAR | 1 | 0 | 1 | $4.91 |
| 8 | ADAMS ENERGY | 1 | 0 | 1 | $2.44 |
| 9 | BRIGHT LIGHT SOLAR | 1 | 0 | 1 | $3.37 |
| 10 | REKNEW ENERGY SYSTEMS | 1 | 0 | 1 | $6.26 |
| 11 | SOLAR CONTRACTORS | 1 | 0 | 1 | — |
| 12 | SUNERGY SYSTEMS | 1 | 0 | 1 | — |
Zip markets
Zips in Alton
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 03809 | 44 | $3.31 | 44 C |