PanelCensus

Solar installations in Connecticut

55,073 recorded installations — prices, growth by year, county breakdown and the installers doing the work.

Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.

Installations
55,073
Total capacity
1.6 GW
Median price
$3.78/W
pre-incentive
Third-party owned
61%
lease / PPA

Most active

Top installers in Connecticut

#InstallerInstalls in CT
1Trinity Solar12,474
2Tesla Energy7,094
3Sunrun5,831
4Posigen3,659
5Sunpower Capital2,841
6Momentum Solar1,712
7Ross Solar Group1,393
8Ctec Solar1,275
9Sunlight Solar Energy1,181
10Rgs Energy1,151
11Roof Diagnostics Solar1,005
12Earthlight Technologies1,004
13Aegis Electrical Systems823
14Sungevity Development815
15Direct Energy Solar Formerly Astrum671

Connecticut installer directory →

Growth

Installations by year

2005
33$8.05/W
2006
103$8.42/W
2007
187$8.85/W
2008
334$8.40/W
2009
524$8.00/W
2010
528$7.27/W
2011
435$6.23/W
2012
356$5.06/W
2013
1,075$4.46/W
2014
1,516$4.18/W
2015
8,306$4.42/W
2016
7,379$3.80/W
2017
4,486$3.37/W
2018
5,796$3.57/W
2019
7,534$3.57/W
2020
6,711$3.57/W
2021
4,760$3.60/W
2022
1,505$3.86/W
2023
3,221$1.57/W
2024
11$3.15/W
2025
9
2026
5

Bars: recorded installs · right column: median $/W that year.

By county

Solar by county in Connecticut

CountyInstallsCapacityMedian $/W
New Haven County13,247170.1 MW$3.75/W
Hartford County11,969288.3 MW$3.72/W
Fairfield County9,047105.3 MW$3.96/W
New London County4,194120.4 MW$3.83/W
Middlesex County3,10943.3 MW$3.75/W
Litchfield County2,81357.4 MW$3.99/W
Tolland County2,34745.7 MW$3.75/W
Windham County2,197123.6 MW$3.72/W

Counties derived from installation ZIP codes (Census ZCTA crosswalk) — approximate at boundaries. Counties with fewer than 50 recorded installs are shown but not indexed.

Frequently asked questions

How many solar installations are there in Connecticut?

PanelCensus records 55,073 solar installations in Connecticut, totalling 1.6 GW of capacity — compiled from LBNL's Tracking the Sun, city permit records, state programs and USGS/EIA utility-scale data. (Coverage depends on what the state publishes, so actual totals are higher.)

How much does solar cost per watt in Connecticut?

The median installed price across priced systems in Connecticut is $3.78/W pre-incentive. Year-by-year medians are shown on this page.

Who are the biggest solar installers in Connecticut?

Trinity Solar has the most recorded installations in Connecticut (12,474), followed by Tesla Energy (7,094).