Darien, CT solar installation & market data
Updated March 11, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Darien has 76 solar installations across 1 zip code at a median installed cost of $3.99/W, recent growth not yet measurable, and an installs-weighted Market Score of 44.
Active installations
76
Zip markets
1
Median cost
$3.99/W
12-mo growth
—
Installers active
12
City Market Score
Good · installs-weighted across 1 zips
Best zip in Darien scores higher than 63% of U.S. zip markets.
Versus Connecticut
How Darien compares with the state
Installed cost
$0.20/W above
state median $3.79/W
Market score
44 vs 51
Connecticut scores 51
Share of state installs
0.15%
of 50.1K tracked statewide
Battery attach
1.3%
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
Darien by year
1 installs in the trailing twelve months vs 2 before
Installations by year
Median installed cost, $/W DC by year
Installer comp set
Who installs in Darien
Summed across every zip in the city
| # | Installer | Installs | 12-mo | Zips | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 15 | 0 | 1 | $5.05 |
| 2 | PUREPOINT ENERGY | 10 | 0 | 1 | $3.88 |
| 3 | ROSS SOLAR GROUP | 8 | 0 | 1 | $4.68 |
| 4 | RGS ENERGY | 5 | 0 | 1 | $8.19 |
| 5 | SUNRUN | 5 | 0 | 1 | $2.09 |
| 6 | AEGIS ELECTRIC SYSTEMS | 4 | 0 | 1 | $6.37 |
| 7 | PEREGRINE RENEWABLE ENERGY | 4 | 0 | 1 | $3.59 |
| 8 | GREEN POWER ENERGY | 3 | 1 | 1 | $3.20 |
| 9 | SUNLIGHT SOLAR ENERGY | 3 | 0 | 1 | $8.52 |
| 10 | EARTHLIGHT TECHNOLOGIES | 2 | 0 | 1 | $3.35 |
| 11 | MERCURY SOLAR | 2 | 0 | 1 | $6.57 |
| 12 | MOMENTUM SOLAR | 2 | 0 | 1 | $2.74 |
Zip markets
Zips in Darien
Ranked by installations · click for the zip market
| Zip | Installs | $/W | Score |
|---|---|---|---|
| 06820 | 76 | $3.99 | 44 C |