Old Greenwich, CT 06870 solar market data
Updated December 26, 2024Older data · growth withheldProvisional score · under 500 installs By The SolarDNA Data Team
Old Greenwich 06870 has 36 solar installations at a median installed cost of $4.46/W, recent growth not yet measurable, and a Market Score of 41 — higher than 45% of U.S. zip markets.
Versus Connecticut
How 06870 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
06870 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 06870
Ranked by systems recorded in this zip
| # | Installer | Installs | 12-mo | Avg kW | $/W |
|---|---|---|---|---|---|
| 1 | TESLA | 6 | 0 | 9.5 | $5.00 |
| 2 | CENTURION SOLAR ENERGY | 5 | 0 | 4.64 | $3.98 |
| 3 | SUNRUN | 5 | 0 | 11.87 | $2.15 |
| 4 | SOUND SOLAR SYSTEMS | 3 | 0 | 5.12 | $6.36 |
| 5 | SUNLIGHT SOLAR ENERGY | 3 | 0 | 7.67 | $6.03 |
| 6 | ECOSMART HOME SERVICES | 1 | 1 | 7 | $5.22 |
| 7 | CES | 1 | 0 | 2.64 | $8.98 |
| 8 | DMV EQUITY | 1 | 0 | 7.56 | $3.50 |
| 9 | DOW SOLAR | 1 | 0 | 4.63 | $9.86 |
| 10 | EARTHLIGHT TECHNOLOGIES | 1 | 0 | — | — |
| 11 | GREEN HYBRID ENERGY SOLUTIONS | 1 | 0 | 12.58 | $4.04 |
| 12 | MOMENTUM SOLAR | 1 | 0 | 7.7 | $3.19 |
Equipment
What gets installed in 06870
Share of systems with a recorded brand
Modules
CSI SOLAR17.6%
SUNPOWER17.6%
LG ELECTRONICS11.8%
QCELLS NORTH AMERICA11.8%
LONGI GREEN ENERGY TECHNOLOGY5.9%
Inverters
SOLAREDGE42.4%
ENPHASE ENERGY39.4%
SUNPOWER12.1%
FRONIUS USA3.0%
TESLA3.0%
Frequently asked
Quick answers about 06870
How many solar installations are there in 06870?
SolarDNA counts 36 active solar installations in Old Greenwich 06870, 36 of them residential, with data through December 26, 2024.
How much does solar cost in 06870?
The median residential system in 06870 cost $4.46 per watt over the trailing twelve months, $0.66/W above the Connecticut median.
Is solar growing in 06870?
Recent growth cannot be measured yet for 06870: insufficient recent data (data runs through December 26, 2024).
Who installs solar in 06870?
TESLA, CENTURION SOLAR ENERGY, SUNRUN lead the 19 installers with systems in 06870. The full comp set is above.
Is 06870 a good market for solar sales?
06870 scores 41 out of 100 (Good, higher than 45% of U.S. zip markets). With under 500 installations the score is provisional.