Waterbury Generation

725 Bank Street, Waterbury, CT 6708

Plant Summary Information

Waterbury Generation is ranked #30 out of 168 power plants in Connecticut in terms of total annual net electricity generation.

Waterbury Generation is comprised of 1 generator and generated 13.8 GWh during the 3-month period between September 2025 to December 2025.

Plant Name	Waterbury Generation
Utility Name	Engie North America
Location	Naugatuck Valley Planning Region, CT
Initial Operation Date	June 2009
Last Update	Dec 2025
Annual Generation	55.0 GWh
Annual Consumption	539.7 k MMBtu
Ranked #4,094 out of 13,081 Power Plants Nationwide
Ranked #1,071 out of 2,206 Natural Gas Power Plants Nationwide
Ranked #30 out of 168 Connecticut Power Plants
Ranked #19 out of 52 Connecticut Natural Gas Power Plants
Fuel Types	Natural Gas : 99.1% Kerosene : 0.9%
Previous Operator	FirstLight Power Resources Services LLC (2013 to 2016) Engie North America (2017 to 2025)

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Summary Information
Plant Name	Waterbury Generation (56629)
Plant Address	725 Bank Street, Waterbury, CT 6708
Utility	Engie North America (56201)
Latitude, Longitude	41.5444, -73.0417
Generation Dates on File	Jun 2009 to Dec 2025
Initial Operation Date	June 2009
Annual Generation	55.0 GWh
Fuel Types	Natural Gas : 99.1% Kerosene : 0.9%

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Non-Regulated
NERC Region	NPCC
Balancing Authority	ISO New England Inc. (ISNE)
NAICS Code	Utilities (22)
Sector	IPP Non-CHP (2)
Water Source	City of Waterbury/Municipality
Ash Impoundment	No
Transmission / Distribution Owner	Connecticut Light & Power Co (4176) CT
Grid Voltage	115.00 kV
Energy Storage	No

Natural Gas Information
Pipeline Name	Algonquin Gas Transmission Company
Natural Gas Storage	No
Liquefied Natural Gas Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Natural Gas Fired Combustion Turbine
Prime Mover	Combustion Turbine
Ownership	Wholly Owned by Other Entity
Nameplate Capacity	96 MW
Nameplate Power Factor	0.8
Summer Capacity	96 MW
Winter Capacity	100 MW
Minimum Load	50 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	June 2009
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Natural Gas / Kerosene
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	Yes
Cofire Fuels	No
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	96 MW
Net Winter Capacity With Natural Gas	96 MW
Net Summer Capacity With Oil	89.9 MW
Net Winter Capacity With Oil	90 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Air Permit Limits	Yes

Owner Name	Address	Ownership
Waterbury Generation LLC	1990 Post Oak BLVD., Suite 1900, Houston, TX 77056	100.00%

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#1063	Black Mountain Generating Station	Golden Valley, AZ	55.2 GWh
#1064	Sylvamo Corporation Eastover Facility	Eastover, SC	546.3 GWh
#1065	Hyperion Treatment Plant CHP Plant	Playa del Rey, CA	155.9 GWh
#1066	Mars Wrigley Confectionery US, LLC	Hackettstown, NJ	55.2 GWh
#1067	J K Spruce	San Antonio, TX	6.2 TWh
#1068	San Diego State University	San Diego, CA	56.5 GWh
#1069	Saint Marys Hospital Power Plant	Rochester, MN	55.5 GWh
#1070	CH Resources Syracuse	Solvay, NY	54.8 GWh
#1072	International Paper Georgetown Mill	Georgetown, SC	484.7 GWh
#1073	Newington	Newington, NH	157.4 GWh
#1074	Gillette SBMC	Boston, MA	54.2 GWh
#1075	Cogeneration 1	Tucson, AZ	54.1 GWh
#1076	General Chemical	Green River, WY	215.9 GWh
#1077	New York Presbyterian Hospital- 68th Street	New York, NY	54.1 GWh
#1078	Tilton	Tilton, IL	53.8 GWh
#1079	AOC, Capitol Power Plant	Washington, DC	54.4 GWh
#1080	Osawatomie	Miami, KS	53.6 GWh
#1081	Cymric 36W Cogen	McKittrick, CA	53.4 GWh

Below are closest 20 power plants surrounding Waterbury Generation.

Plant Name	Plant Location	Annual Generation	Distance
Amazon BDL3 Solar Project	New Haven, CT	1.7 GWh	11.9 mi
Benz Solar 1	Ansonia, CT	1.3 GWh	14 mi
Benz Solar 2	Ansonia, CT	1.3 GWh	13.9 mi
Bristol Solar One, LLC	Bristol, CT	4.9 GWh	10.6 mi
Burlington Solar 1	Burlington, CT	5.8 GWh	13.9 mi
Covanta Bristol Energy	Bristol, CT	108.5 GWh	9.8 mi
CPV Towantic Energy Center	Oxford, CT	5.5 TWh	6.1 mi
CTGB Maloney and Webster	Cheshire, CT	3.2 GWh	7.7 mi
Derby Fuel Cell	Derby, CT	110.3 GWh	15.4 mi
Derby Hydro	Shelton, CT	22.7 GWh	15.5 mi
Medtronic - New Haven	North Haven, CT	18.0 GWh	16.8 mi
North Haven Solar One	North Haven, CT	2.8 GWh	15.7 mi
Park Solar	Woodbridge, CT	1.5 GWh	14.6 mi
Shepaug	Southbury, CT	93.3 GWh	14.7 mi
Stevenson	Monroe, CT	70.8 GWh	13 mi
Torrington	Torrington, CT	277.0 MWh	16.5 mi
UI RCP Woodbridge FC	Woodbridge, CT	16.7 GWh	13 mi
Wallingford Energy	Wallingford, CT	107.0 GWh	12.6 mi
Wallingford Solar	Wallingford, CT	15.4 GWh	12.7 mi
Watertown Solar One, LLC	Watertown, CT	2.9 GWh	7.6 mi