Solar Panel Cost & Installation Data in Connecticut
Observed Records
54,917
Reported Capacity
914 MW
Observed Avg Cost
$4.03/W
Median: $3.78/W
Dataset Rank
#9
87% residential
28.75¢
Residential Rate (EIA 2024)
3.8h
Peak Sun Hours/Day
11.8 yrs
Est. Payback Period
$5,693
Est. Annual Savings
Environmental & Community Impact
- CO₂ Offset/Year
- 1,022,143 tons
- CO₂ Offset/System/Year
- 13.1 tons
- Installations per 10K Residents
- 152.1
- State Population
- 3,611,317
- Est. Annual Production/System
- 19,801 kWh
Estimates use average system size, a 3.8h/day state solar-resource proxy and a 14% system-loss assumption. Payback excludes financing and incentives. Context sources: NREL, EIA and EPA eGRID (0.709 metric tons CO₂/MWh).
System Overview
- Avg System Size
- 16.6 kW
- Battery Adoption
- 0.3%
- Third-Party Owned
- 60.9%
Cost Trend ($/W)
Avg Cost per Watt
Installation Growth (Last 5 Years)
7.5K7,5232019
6.7K6,6992020
4.7K4,7382021
1.5K1,4932022
3.2K3,2192023
Installer Names in the Source Records
| Installer | Observed Records |
|---|---|
| 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 |
Panel Brands in the Source Records
| Brand | Observed Records |
|---|---|
| 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 |
County Records - Connecticut
| County | Observed Records | Reported 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
State-program snapshot
Is Solar Worth It in Connecticut?
Modeled homeowner analysis
Primary dataset: LBNL Tracking the Sun 2024 release. Counts represent records in the source release, not a complete statewide census.