Summary of Electricity Activity in Connecticut
Summary of Connecticut Generation
Connecticut is ranked #35 out of 51 U.S. states and territories in terms of total annual net electricity generation.
GridInfo.com electricity generation data is aggregated from Jan 2001 to Jul 2024.
| Companies on File | 132 |
|---|---|
| Plants on File | 214 |
| Total Generation | 4.42G MMBtu |
| Total Sales | 2.93G kWh |
| Total Revenue | $700.54M |
Map of Top Producing Cities in the Connecticut
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Natural Gas Rank
#22
Coal Rank
#43
Nuclear Rank
#17
Hydroelectric Rank
#45
Wind Rank
#40
Solar Rank
#28
Monthly Net Generation for Connecticut
Electricity Sales Distribution
Electricity Sales, Price, and Revenue Breakdown
| Sales | Price (Avg) | Revenue | |
|---|---|---|---|
| Residential | 1.51G kWh | 28.02 cents/kWh | $422.23M |
| Commercial | 1.17G kWh | 20.05 cents/kWh | $235.45M |
| Industrial | 231.76M kWh | 17.26 cents/kWh | $40.01M |
| Transportation | 17.31M kWh | 16.50 cents/kWh | $2.86M |
| Total | 2.93G kWh | 23.91 cents/kWh | $700.54M |
Production by Source
Largest 24 Power Plants in Connecticut
| Rank | Plant | Utility | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| #18 | Algonquin Windsor Locks | Algonquin Windsor Locks LLC | Windsor Locks, Connecticut | 140.4 GWh | Dec 1989 | Jul 2024 | Natural Gas : 99.9% |
| #7 | Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, Connecticut | 2.6 TWh | May 1998 | Jul 2024 | Natural Gas |
| #14 | Bridgeport Fuel Cell, LLC | Bridgeport Fuel Cell, LLC | Bridgeport, Connecticut | 218.0 GWh | Nov 2013 | Dec 2023 | Natural Gas |
| #5 | Bridgeport Station | Generation Bridge II Connecticut, LLC | Bridgeport, Connecticut | 3.6 TWh | Jul 1961 | Jul 2024 | Natural Gas |
| #23 | Covanta Bristol Energy | Covanta Bristol Inc | Bristol, Connecticut | 118.0 GWh | Nov 1987 | Jul 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| #22 | Covanta Southeastern Connecticut Company | Covanta Southeastern Connecticut Company | Preston, Connecticut | 128.5 GWh | Nov 1991 | Jul 2024 | Non-biogenic Municipal Solid Waste : 53.9% Biogenic Municipal Solid Waste : 44.1% Distillate Fuel Oil : 1.9% |
| #3 | CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, Connecticut | 6.0 TWh | Apr 2018 | Jul 2024 | Natural Gas |
| #16 | Generate Colchester Fuel Cells, LLC | Generate Colchester Fuel Cells, LLC | Colchester, Connecticut | 170.5 GWh | Sep 2021 | Dec 2023 | Natural Gas |
| #9 | Kimberly Clark-Unit 1,2,3 | Kimberly-Clark Corporation | New Milford, Connecticut | 453.4 GWh | Mar 2008 | Dec 2023 | Natural Gas |
| #6 | Kleen Energy Systems Project | Kleen Energy Systems, LLC | Middletown, Connecticut | 3.1 TWh | Jun 2011 | Jul 2024 | Natural Gas : 99.4% Distillate Fuel Oil : 0.6% |
| #2 | Lake Road Generating Plant | Lake Road Generating Co LP | Dayville, Connecticut | 6.2 TWh | Feb 2002 | Jul 2024 | Natural Gas |
| #15 | Middletown | Middletown Power LLC | Middletown, Connecticut | 200.5 GWh | Sep 1958 | Dec 2023 | Natural Gas : 67.5% Residual Fuel Oil : 32.5% |
| #4 | Milford Power Project | Milford Power Co LLC | Milford, Connecticut | 3.8 TWh | Jan 2004 | Jul 2024 | Natural Gas |
| #1 | Millstone | Dominion Energy Nuclear Conn Inc | Waterford, Connecticut | 17.8 TWh | Nov 1975 | Jul 2024 | Nuclear |
| #12 | Plainfield Renewable Energy LLC | Plainfield Renewable Energy, LLC | Plainfield, Connecticut | 233.8 GWh | Nov 2013 | Dec 2023 | Wood/Wood Waste Solids : 99.6% |
| #19 | Pratt & Whitney | United Technologies | East Hartford, Connecticut | 139.6 GWh | Dec 1991 | Jul 2024 | Natural Gas : 99.8% |
| #17 | Rand Whitney CHP Plant | Rand Whitney Containerboard L.P. | Montville, Connecticut | 146.3 GWh | Mar 2005 | Jul 2024 | Natural Gas |
| #10 | Shepaug | FirstLight Power Resources Services LLC | Southbury, Connecticut | 337.0 GWh | Dec 1954 | Dec 2023 | Water |
| #21 | Sikorsky Aircraft CHP | Sikorsky Aircraft Corporation | Stratford, Connecticut | 133.7 GWh | May 2010 | Dec 2023 | Natural Gas : 99.8% |
| #13 | Stevenson | FirstLight Power Resources Services LLC | Monroe, Connecticut | 229.1 GWh | Dec 1918 | Dec 2023 | Water |
| #20 | UCONN Cogen Facility | University of Connecticut | Storrs, Connecticut | 136.4 GWh | Feb 2006 | Jul 2024 | Natural Gas : 99.7% |
| #11 | Wallingford Energy | Wallingford Energy LLC | Wallingford, Connecticut | 324.8 GWh | Jul 2001 | Dec 2023 | Natural Gas |
| #8 | Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, Connecticut | 486.4 GWh | Jun 1988 | Jul 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| #24 | Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, Connecticut | 108.1 GWh | Sep 1995 | Jul 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
Electricity Generation by Connecticut Counties
| State Rank | County | # Power Plants | Net Generation Past 12 Months | Net Generation from Natural Gas | Net Generation from Wind | Net Generation from Solar | Net Generation from Nuclear |
|---|---|---|---|---|---|---|---|
| #7 | Capitol Planning Region, CT | 50 | 909.9 GWh | 708.5 GWh | 0.0 Wh | 155.9 GWh | 0.0 Wh |
| #2 | Greater Bridgeport Planning Region, CT | 10 | 7.3 TWh | 6.6 TWh | 0.0 Wh | 1.1 GWh | 0.0 Wh |
| #6 | Lower Connecticut River Valley Planning Region, CT | 15 | 3.4 TWh | 3.2 TWh | 0.0 Wh | 54.9 GWh | 0.0 Wh |
| #4 | Naugatuck Valley Planning Region, CT | 13 | 6.6 TWh | 6.1 TWh | 0.0 Wh | 16.5 GWh | 0.0 Wh |
| #3 | Northeastern Connecticut Planning Region, CT | 17 | 6.6 TWh | 6.2 TWh | 0.0 Wh | 138.7 GWh | 0.0 Wh |
| #9 | Northwest Hills Planning Region, CT | 15 | 177.2 GWh | 0.0 Wh | 9.1 GWh | 33.1 GWh | 0.0 Wh |
| #5 | South Central Connecticut Planning Region, CT | 23 | 4.3 TWh | 4.3 TWh | 0.0 Wh | 51.0 GWh | 0.0 Wh |
| #1 | Southeastern Connecticut Planning Region, CT | 50 | 18.9 TWh | 700.0 GWh | 0.0 Wh | 124.6 GWh | 17.8 TWh |
| #8 | Western Connecticut Planning Region, CT | 14 | 629.4 GWh | 513.3 GWh | 0.0 Wh | 0.0 Wh | 0.0 Wh |
Top 20 Electricity Producing Cities in Connecticut
| City | Net Generation | # Power Plants |
|---|---|---|
| Baltic, Connecticut | 149.9 GWh | 2 |
| Bridgeport, Connecticut | 6.9 TWh | 6 |
| Bristol, Connecticut | 134.3 GWh | 3 |
| Colchester, Connecticut | 171.7 GWh | 2 |
| Dayville, Connecticut | 6.3 TWh | 3 |
| East Hartford, Connecticut | 235.7 GWh | 4 |
| East Village, Connecticut | 229.1 GWh | 1 |
| Groton, Connecticut | 326.1 GWh | 8 |
| Middletown, Connecticut | 3.3 TWh | 7 |
| Milford city (balance), Connecticut | 3.8 TWh | 1 |
| Naugatuck, Connecticut | 6.0 TWh | 1 |
| New Milford, Connecticut | 565.6 GWh | 4 |
| Newtown, Connecticut | 337.0 GWh | 1 |
| Oronoque, Connecticut | 133.7 GWh | 1 |
| Oxoboxo River, Connecticut | 279.9 GWh | 4 |
| Plainfield Village, Connecticut | 239.7 GWh | 3 |
| Storrs, Connecticut | 136.4 GWh | 1 |
| Wallingford Center, Connecticut | 369.1 GWh | 3 |
| Waterford, Connecticut | 17.8 TWh | 1 |
| Windsor Locks, Connecticut | 197.6 GWh | 3 |
Electricity Generation for Neighboring States
| National Rank | State | Net Generation | # Power Plants |
|---|---|---|---|
| #49 | Delaware | 5.7 TWh | 42 |
| #51 | District of Columbia | 213.6 GWh | 23 |
| #18 | Indiana | 107.6 TWh | 271 |
| #26 | Kentucky | 75.6 TWh | 85 |
| #45 | Maine | 19.8 TWh | 270 |
| #38 | Maryland | 40.7 TWh | 247 |
| #42 | Massachusetts | 25.8 TWh | 698 |
| #11 | Michigan | 142.1 TWh | 374 |
| #44 | New Hampshire | 21.1 TWh | 74 |
| #27 | New Jersey | 74.3 TWh | 475 |
| #10 | New York | 155.4 TWh | 1,165 |
| #9 | North Carolina | 156.2 TWh | 1,119 |
| #6 | Ohio | 166.1 TWh | 290 |
| #4 | Pennsylvania | 274.0 TWh | 371 |
| #46 | Rhode Island | 15.3 TWh | 114 |
| #15 | South Carolina | 115.1 TWh | 297 |
| #19 | Tennessee | 95.1 TWh | 114 |
| #50 | Vermont | 4.4 TWh | 140 |
| #16 | Virginia | 112.7 TWh | 314 |
| #31 | West Virginia | 59.6 TWh | 66 |
* Net Generation data is based on the last 12 months since Jul 2024