Solar Energy in Connecticut - Installation Data & Costs
Total Installations
54,917
Total Capacity
914 MW
Average Cost
$4.03/W
Median: $3.78/W
National Rank
#9
87% residential
27.88¢
Electricity Rate (kWh)
3.8h
Peak Sun Hours/Day
9.1 yrs
Est. Payback Period
$5,135
Est. Annual Savings
Environmental & Community Impact
- CO₂ Offset/Year
- 1,022,143 tons
- CO₂ Offset/System/Year
- 13.1 tons
- Installations per 10K Residents
- 152.1
- State Population
- 3,611,317
- Est. Annual Production/System
- 18,419 kWh
Estimates based on average system size, 3.8h peak sun hours/day, 80% derating factor, and 30% federal ITC. Sources: NREL, EIA, EPA eGRID (0.709 metric tons CO₂/MWh).
System Overview
- Avg System Size
- 16.6 kW
- Battery Adoption
- 0.3%
- Third-Party Owned
- 60.9%
Cost Trend ($/W)
Avg Cost per Watt
Installation Growth (Last 5 Years)
7,5232019
6,6992020
4,7382021
1,4932022
3,2192023
Top Solar Installers in Connecticut
| Installer | Installations |
|---|---|
| Trinity Solar | 12,474 |
| Tesla Energy | 7,094 |
| Sunrun | 5,831 |
| -1 | 5,778 |
| Posigen | 3,659 |
| Sunpower Capital | 2,841 |
| Momentum Solar | 1,712 |
| Ross Solar Group | 1,393 |
| Ctec Solar | 1,274 |
| Sunlight Solar Energy | 1,181 |
Most Popular Panel Brands in Connecticut
| Brand | Installations |
|---|---|
| Qcells North America | 9,937 |
| Trina Solar | 6,724 |
| Alps Technology | 6,551 |
| SunPower | 5,849 |
| LG Electronics Inc. | 5,621 |
| CSI Solar Co., Ltd. | 3,819 |
| Silfab Solar Inc. | 3,316 |
| REC Solar | 2,144 |
| Jinko Solar Co., Ltd | 2,032 |
| Yingli Energy (China) | 1,563 |
Solar by County - Connecticut
| County | Installations | Capacity |
|---|---|---|
| New Haven | 12,896 | 121.3 MW |
| Hartford | 11,642 | 127.1 MW |
| Fairfield | 8,327 | 87.8 MW |
| New London | 4,136 | 38.8 MW |
| Middlesex | 3,095 | 31.7 MW |
| Litchfield | 2,787 | 29.5 MW |
| Tolland | 2,336 | 25.8 MW |
| Windham | 2,134 | 20.8 MW |
Connecticut Solar Incentives
Tax credits, rebates & programs
Is Solar Worth It in Connecticut?
Data-backed analysis
Source: