Old Greenwich, CT solar installation & market data
Updated December 26, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Old Greenwich has 36 solar installations across 1 zip code at a median installed cost of $4.46/W, recent growth not yet measurable, and an installs-weighted Market Score of 41.
Active installations
36
Zip markets
1
Median cost
$4.46/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Old Greenwich scores higher than 45% of U.S. zip markets.
Versus Connecticut
How Old Greenwich compares with the state
Installed cost
$0.66/W above
state median $3.79/W
Market score
41 vs 51
Connecticut scores 51
Share of state installs
0.07%
of 50.1K tracked statewide
Battery attach
2.8%
state 0.4%
Statewide momentum
▼ 5.6%
residential solar added in Connecticut, 12 months through Jul 2026
Statewide market
128.1K systems
13.6% of homes · utility-reported through Jul 2026
Growth & pricing
Old Greenwich by year
1 installs in the trailing twelve months vs 1 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Old Greenwich
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 6 | 0 | 1 | $5.00 |
| 2 | CENTURION SOLAR ENERGY | 5 | 0 | 1 | $3.98 |
| 3 | SUNRUN | 5 | 0 | 1 | $2.15 |
| 4 | SOUND SOLAR SYSTEMS | 3 | 0 | 1 | $6.36 |
| 5 | SUNLIGHT SOLAR ENERGY | 3 | 0 | 1 | $6.03 |
| 6 | ECOSMART HOME SERVICES | 1 | 1 | 1 | $5.22 |
| 7 | CES | 1 | 0 | 1 | $8.98 |
| 8 | DMV EQUITY | 1 | 0 | 1 | $3.50 |
| 9 | DOW SOLAR | 1 | 0 | 1 | $9.86 |
| 10 | EARTHLIGHT TECHNOLOGIES | 1 | 0 | 1 | — |
| 11 | GREEN HYBRID ENERGY SOLUTIONS | 1 | 0 | 1 | $4.04 |
| 12 | MOMENTUM SOLAR | 1 | 0 | 1 | $3.19 |
Zip markets
Zips in Old Greenwich
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 06870 | 36 | $4.46 | 41 C |