Grand Isle County, VT solar installation & market data
Updated December 23, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Grand Isle County has 412 solar installations across 5 zip codes at a median installed cost of $4.65/W, recent growth not yet measurable, and an installs-weighted Market Score of 37.
Active installations
412
Zip markets
5
Median cost
$4.65/W
12-mo growth
—
Installers active
34
County Market Score
Fair · installs-weighted across 5 zips
Best zip in Grand Isle County scores higher than 58% of U.S. zip markets.
Versus Vermont
How Grand Isle County compares with the state
Installed cost
$0.20/W below
state median $4.85/W
Market score
37 vs 39
Vermont scores 39
Share of state installs
1.32%
of 31.3K tracked statewide
Battery attach
0.0%
state 5.7%
Statewide momentum
▲ 12.0%
residential solar added in Vermont, 12 months through Jul 2026
Statewide market
21.9K systems
10.4% of homes · utility-reported through Jul 2026
Growth & pricing
Grand Isle County by year
36 installs in the trailing twelve months vs 43 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Grand Isle County
Summed across every zip in the county
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | SUNRUN | 119 | 7 | 5 | — |
| 2 | SUNCOMMON | 109 | 2 | 5 | $4.80 |
| 3 | DC ENERGY INNOVATIONS | 56 | 0 | 5 | $4.79 |
| 4 | TESLA | 24 | 0 | 5 | — |
| 5 | BUILDING ENERGY | 22 | 2 | 5 | $4.78 |
| 6 | GREEN MOUNTAIN SOLAR | 21 | 4 | 5 | — |
| 7 | ALLEARTH RENEWABLE | 8 | 0 | 2 | $7.50 |
| 8 | DONALD F SCHROEDER MASTER ELECTRICIAN | 5 | 0 | 2 | $4.19 |
| 9 | PECK ELECTRIC | 4 | 0 | 3 | $4.89 |
| 10 | CATAMOUNT SOLAR | 3 | 1 | 1 | — |
| 11 | RGS ENERGY | 3 | 0 | 3 | $4.22 |
| 12 | SUNPOWER | 2 | 0 | 2 | $5.60 |
| 13 | NORWICH TECHNOLOGY | 2 | 1 | 2 | — |
| 14 | LOCAL ENERGY | 2 | 0 | 1 | — |
| 15 | HARVESTAR | 2 | 1 | 2 | — |
| 16 | SHERWIN ELECTRIC | 2 | 0 | 2 | $3.21 |
| 17 | NUNEZ ELECTRIC | 2 | 0 | 2 | $5.07 |
| 18 | REBECCA PAYNE | 2 | 0 | 2 | — |
| 19 | JOSEPH MARCOTULLIO | 1 | 0 | 1 | — |
| 20 | VERMONT SOLAR | 1 | 0 | 1 | $6.09 |
| 21 | USA SOLAR STORE | 1 | 0 | 1 | $2.29 |
| 22 | TITLON ELECTRIC | 1 | 0 | 1 | — |
| 23 | FREEDOM FOREVER | 1 | 1 | 1 | — |
| 24 | WILLIAM LA COUNT | 1 | 0 | 1 | — |
| 25 | ARRAY OF SUNSHINE | 1 | 1 | 1 | — |