Summary of Electricity Activity in Connecticut

Summary of Connecticut Generation

Connecticut is ranked #36 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 Feb 2024.

Companies on File	124
Plants on File	203
Total Generation	3.40G MMBtu
Total Sales	2.18G kWh
Total Revenue	$537.36M

Map of Top Producing Cities in the Connecticut

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Overall National Rank

#36 /51 U.S. States

In Net Annual Generation

Overall Annual Net Geneneration

43.7 TWh

Total Annual Fuel Consumption

381.9 M MMBtu

Electric Companies in Connecticut

124

Connecticut
Power Plants

203

Natural Gas Rank

#22

Coal Rank

#48

Nuclear Rank

#17

Hydroelectric Rank

#38

Wind Rank

#40

Solar Rank

#27

Monthly Net Generation for Connecticut

Electricity Sales Distribution

Electricity Sales, Price, and Revenue Breakdown

	Sales	Price (Avg)	Revenue
Residential	1.05G kWh	29.52 cents/kWh	$310.98M
Commercial	909.49M kWh	20.85 cents/kWh	$189.64M
Industrial	199.15M kWh	16.97 cents/kWh	$33.79M
Transportation	16.48M kWh	17.88 cents/kWh	$2.95M
Total	2.18G kWh	24.66 cents/kWh	$537.36M

* Data is aggregated from Jan 2001 to Feb 2024.

Production by Source

Largest 24 Power Plants in Connecticut

Rank	Plant	Utility	Location	Annual Generation	Initial Operation Date	Last Update	Fuel Types
#17	Algonquin Windsor Locks	Algonquin Windsor Locks LLC	Windsor Locks, Connecticut	125.1 GWh	Dec 1989	Feb 2024	Natural Gas : 99.7%
#7	Bridgeport Energy Project	Bridgeport Energy LLC	Bridgeport, Connecticut	2.7 TWh	May 1998	Feb 2024	Natural Gas
#18	Bridgeport Fuel Cell, LLC	Bridgeport Fuel Cell, LLC	Bridgeport, Connecticut	120.4 GWh	Nov 2013	Dec 2022	Natural Gas
#5	Bridgeport Station	Generation Bridge II Connecticut, LLC	Bridgeport, Connecticut	3.1 TWh	Jul 1961	Feb 2024	Natural Gas : 99.3% Distillate Fuel Oil : 0.7%
#20	Covanta Bristol Energy	Covanta Bristol Inc	Bristol, Connecticut	113.1 GWh	Nov 1987	Feb 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
#16	Covanta Southeastern Connecticut Company	Covanta Southeastern Connecticut Company	Preston, Connecticut	125.5 GWh	Nov 1991	Feb 2024	Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Distillate Fuel Oil : 1.8%
#3	CPV Towantic Energy Center	CPV Towantic, LLC	Oxford, Connecticut	6.1 TWh	Apr 2018	Feb 2024	Natural Gas : 99.9%
#11	CT Resource Rec Authority Facility	NAES Corp	Hartford, Connecticut	241.7 GWh	Jun 1988	Jul 2022	Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.8%
#23	Generate Colchester Fuel Cells, LLC	Generate Colchester Fuel Cells, LLC	Colchester, Connecticut	83.8 GWh	Sep 2021	Dec 2022	Natural Gas
#10	Kimberly Clark-Unit 1,2,3	Kimberly-Clark Corporation	New Milford, Connecticut	256.5 GWh	Mar 2008	Dec 2022	Natural Gas
#6	Kleen Energy Systems Project	Kleen Energy Systems, LLC	Middletown, Connecticut	2.8 TWh	Jun 2011	Feb 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	Feb 2024	Natural Gas
#12	Middletown	Middletown Power LLC	Middletown, Connecticut	187.1 GWh	Sep 1958	Dec 2022	Residual Fuel Oil : 69.9% Natural Gas : 29.9%
#4	Milford Power Project	Milford Power Co LLC	Milford, Connecticut	3.9 TWh	Jan 2004	Feb 2024	Natural Gas
#1	Millstone	Dominion Energy Nuclear Conn Inc	Waterford, Connecticut	14.9 TWh	Nov 1975	Feb 2024	Nuclear
#22	Montville Station	NRG Montville Operations Inc	Uncasville, Connecticut	97.4 GWh	Dec 1953	Dec 2022	Residual Fuel Oil : 78.4% Natural Gas : 20.4% Distillate Fuel Oil : 1.2%
#9	Plainfield Renewable Energy LLC	Plainfield Renewable Energy, LLC	Plainfield, Connecticut	288.3 GWh	Nov 2013	May 2022	Wood/Wood Waste Solids : 99.6%
#15	Pratt & Whitney	United Technologies	East Hartford, Connecticut	130.4 GWh	Dec 1991	Feb 2024	Natural Gas : 99.8%
#24	Quinebaug Solar	Quinebaug Solar, LLC	Canterbury, Connecticut	81.1 GWh	Nov 2021	Feb 2024	Solar
#13	Rand Whitney CHP Plant	Rand Whitney Containerboard L.P.	Montville, Connecticut	136.3 GWh	Mar 2005	Feb 2024	Natural Gas
#19	Shepaug	FirstLight Power Resources Services LLC	Southbury, Connecticut	114.4 GWh	Dec 1954	Dec 2022	Water
#14	UCONN Cogen Facility	University of Connecticut	Storrs, Connecticut	132.5 GWh	Feb 2006	Feb 2024	Natural Gas : 98.8% Distillate Fuel Oil : 1.2%
#8	Wheelabrator Bridgeport	Wheelabrator Environmental Systems	Bridgeport, Connecticut	495.6 GWh	Jun 1988	Feb 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%
#21	Wheelabrator Lisbon	Wheelabrator Environmental Systems	Lisbon, Connecticut	108.9 GWh	Sep 1995	Feb 2024	Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0%

* Data is based on the last 12 months since Feb 2024.

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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	45	974.0 GWh	598.1 GWh	0.0 Wh	93.5 GWh	0.0 Wh
#2	Greater Bridgeport Planning Region, CT	10	6.7 TWh	6.1 TWh	0.0 Wh	229.4 MWh	0.0 Wh
#6	Lower Connecticut River Valley Planning Region, CT	15	3.1 TWh	2.9 TWh	0.0 Wh	48.1 GWh	0.0 Wh
#3	Naugatuck Valley Planning Region, CT	13	6.4 TWh	6.1 TWh	0.0 Wh	11.9 GWh	0.0 Wh
#4	Northeastern Connecticut Planning Region, CT	17	6.3 TWh	6.2 TWh	0.0 Wh	123.9 GWh	0.0 Wh
#9	Northwest Hills Planning Region, CT	11	75.6 GWh	0.0 Wh	10.3 GWh	12.5 GWh	0.0 Wh
#5	South Central Connecticut Planning Region, CT	21	4.1 TWh	4.0 TWh	0.0 Wh	28.7 GWh	0.0 Wh
#1	Southeastern Connecticut Planning Region, CT	50	15.7 TWh	401.7 GWh	0.0 Wh	83.1 GWh	14.9 TWh
#8	Western Connecticut Planning Region, CT	14	345.2 GWh	288.4 GWh	0.0 Wh	0.0 Wh	0.0 Wh

* Net Generation data is based on the last 12 months since Feb 2024.

View All Counties in Connecticut

Top 20 Electricity Producing Cities in Connecticut

City	Net Generation	# Power Plants
Baltic, Connecticut	150.2 GWh	2
Bridgeport, Connecticut	6.5 TWh	6
Bristol, Connecticut	122.0 GWh	3
Colchester, Connecticut	84.3 GWh	2
Dayville, Connecticut	6.2 TWh	3
East Hartford, Connecticut	186.9 GWh	4
Gales Ferry, Connecticut	97.4 GWh	1
Groton, Connecticut	143.6 GWh	8
Hartford, Connecticut	336.8 GWh	6
Middletown, Connecticut	3.0 TWh	7
Milford city (balance), Connecticut	3.9 TWh	1
Naugatuck, Connecticut	6.1 TWh	1
New Haven, Connecticut	91.6 GWh	4
New Milford, Connecticut	310.0 GWh	4
Newtown, Connecticut	114.4 GWh	1
Oxoboxo River, Connecticut	266.5 GWh	4
Storrs, Connecticut	132.5 GWh	1
Wallingford Center, Connecticut	103.5 GWh	2
Waterford, Connecticut	14.9 TWh	1
Windsor Locks, Connecticut	178.1 GWh	3

* Data is based on the last 12 months since Feb 2024.

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Electricity Generation for Neighboring States

National Rank	State	Net Generation	# Power Plants
#49	Delaware	5.3 TWh	39
#51	District of Columbia	196.2 GWh	18
#17	Indiana	99.5 TWh	260
#24	Kentucky	69.0 TWh	79
#45	Maine	13.3 TWh	214
#38	Maryland	38.3 TWh	223
#41	Massachusetts	21.6 TWh	664
#11	Michigan	131.7 TWh	357
#43	New Hampshire	18.0 TWh	74
#23	New Jersey	70.0 TWh	443
#10	New York	134.9 TWh	1,040
#9	North Carolina	139.9 TWh	1,100
#7	Ohio	148.8 TWh	283
#3	Pennsylvania	256.1 TWh	360
#47	Rhode Island	9.3 TWh	105
#13	South Carolina	110.1 TWh	292
#19	Tennessee	87.2 TWh	105
#50	Vermont	2.3 TWh	138
#16	Virginia	101.6 TWh	281
#31	West Virginia	56.5 TWh	64

* Net Generation data is based on the last 12 months since Feb 2024