Grantham, NH solar installation & market data
Updated June 9, 2023Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Grantham has 39 solar installations across 1 zip code at a median installed cost of $3.33/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
39
Zip markets
1
Median cost
$3.33/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Grantham scores higher than 63% of U.S. zip markets.
Versus New Hampshire
How Grantham compares with the state
Installed cost
$0.11/W below
state median $3.44/W
Market score
44 vs 35
New Hampshire scores 35
Share of state installs
0.38%
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
Grantham by year
6 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 Grantham
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | REVISION ENERGY | 13 | 0 | 1 | $3.23 |
| 2 | NORWICH TECHNOLOGY | 6 | 0 | 1 | $3.48 |
| 3 | GRANITE STATE SOLAR | 4 | 0 | 1 | $3.23 |
| 4 | SOLAFLECT ENERGY | 4 | 0 | 1 | $4.60 |
| 5 | GOSOLAR NH | 2 | 0 | 1 | $3.35 |
| 6 | HARMONY ENERGY WORKS | 2 | 0 | 1 | $4.42 |
| 7 | ALL ENERGY SOLAR | 1 | 0 | 1 | $3.43 |
| 8 | ENDEAVORS | 1 | 0 | 1 | $4.97 |
| 9 | HEATECH | 1 | 0 | 1 | $2.54 |
| 10 | NEW ENGLAND SOLAR CONCEPT | 1 | 0 | 1 | $2.20 |
| 11 | SMART ENERGY OF NE | 1 | 0 | 1 | $5.65 |
| 12 | SUNRAY SOLAR | 1 | 0 | 1 | $3.07 |
Zip markets
Zips in Grantham
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 03753 | 39 | $3.33 | 44 C |