Quinebaug Lower Project

40 Tiffany Street, Brooklyn, CT 6241

Plant Summary Information

Quinebaug Lower Project is ranked #9 out of 12 hydroelectric power plants in Connecticut in terms of total annual net electricity generation.

Quinebaug Lower Project is comprised of 4 generators and generated 984.0 MWh during the 3-month period between September 2025 to December 2025.

Plant Name	Quinebaug Lower Project
Utility Name	Quinebaug Associates LLC
Location	Northeastern Connecticut Planning Region, CT
Initial Operation Date	April 1990
Last Update	Dec 2025
Annual Generation	5.4 GWh
Annual Consumption	19.3 k MMBtu
Ranked #8,092 out of 13,081 Power Plants Nationwide
Ranked #1,068 out of 1,311 Water Power Plants Nationwide
Ranked #81 out of 168 Connecticut Power Plants
Ranked #9 out of 12 Connecticut Water Power Plants
Fuel Types	Water

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Summary Information
Plant Name	Quinebaug Lower Project (55860)
Plant Address	40 Tiffany Street, Brooklyn, CT 6241
Utility	Quinebaug Associates LLC (25771)
Latitude, Longitude	41.79866, -71.88676
Generation Dates on File	Jan 2003 to Dec 2025
Initial Operation Date	April 1990
Annual Generation	5.4 GWh
Fuel Types	Water

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	Yes
FERC Small Power Producer Docket Number	QF06-292-001
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	Quinebaug River
Ash Impoundment	No
Transmission / Distribution Owner	Connecticut Light & Power Co (4176) CT
Grid Voltage	34.50 kV
Energy Storage	No

* Data obtained from the 2025 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.1 MW
Nameplate Power Factor	0.8
Summer Capacity	0.1 MW
Winter Capacity	0.1 MW
Minimum Load	0.1 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	April 1990
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.3 MW
Nameplate Power Factor	0.8
Summer Capacity	0.3 MW
Winter Capacity	0.3 MW
Minimum Load	0.1 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	August 1990
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	0.8 MW
Nameplate Power Factor	0.8
Summer Capacity	0.8 MW
Winter Capacity	0.7 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	August 1990
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Single Owner
Nameplate Capacity	1.3 MW
Nameplate Power Factor	0.8
Summer Capacity	1.2 MW
Winter Capacity	1.2 MW
Minimum Load	0.3 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	August 1990
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	10M

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#1058	Drop 5 (CA)	Calexico, CA	5.6 GWh
#1059	Newport Hydro Station	Newport, VA	5.6 GWh
#1060	Newport Hydro	Newport, NY	5.6 GWh
#1061	Valley Falls Hydroelectric Facility	Valley Falls, NY	5.6 GWh
#1062	Dwight	Chicopee, MA	5.6 GWh
#1063	Arpin Dam	Radisson, WI	5.5 GWh
#1064	Big Creek Water Works	Hyampom, CA	5.5 GWh
#1065	Emporia	Emporia, VA	5.5 GWh
#1066	Longfalls Facility	West Carthage, NY	5.4 GWh
#1067	Crystal Falls	Crystal Falls, MI	5.4 GWh
#1069	Sugarloaf Hydro Plant	Leadville, CO	5.4 GWh
#1070	Lilliwaup Falls Generating	Lilliwaup, WA	5.3 GWh
#1071	Metropolitan Sewerage District	Asheville, NC	5.3 GWh
#1072	Mile 28 Water Power Project	Eden, ID	5.3 GWh
#1073	Granby Hydro	Granby, CO	5.3 GWh
#1074	Stiles	Oconto Falls, WI	5.3 GWh
#1075	Mottville	White Pigeon, MI	5.3 GWh
#1076	Silver Lake (VT)	Salisbury, VT	5.2 GWh
#1077	Saluda Dam	Greenville, SC	5.2 GWh
#1078	French Landing Dam	Belleville, MI	5.2 GWh

Below are closest 20 power plants surrounding Quinebaug Lower Project.

Plant Name	Plant Location	Annual Generation	Distance
Barrett Farm Solar - Phase I	Thompson, CT	2.7 GWh	10.2 mi
CED Foster	Foster, RI	2.7 GWh	5.1 mi
Dickinson Solar (CT)	Hampton, CT	1.5 GWh	10.1 mi
Foster Solar	North Scituate, RI	1.6 GWh	9.4 mi
Frito Lay Incorporated	Dayville, CT	25.1 GWh	4.4 mi
Lake Road Generating Plant	Dayville, CT	5.9 TWh	5.1 mi
McHenry Solar	Hampton, CT	1.6 GWh	10.2 mi
Plainfield Renewable Energy LLC	Plainfield, CT	245.1 GWh	9.5 mi
Plainfield Solar 1	Plainfield, CT	1.5 GWh	8.2 mi
Plainfield Solar 2	Plainfield, CT	1.5 GWh	8.3 mi
Quinebaug Solar	Canterbury, CT	74.3 GWh	4.1 mi
Sydney Solar	Hampton, CT	3.0 GWh	10.1 mi
WED Coventry 1	Coventry, RI	2.8 GWh	12.5 mi
WED Coventry 2	Coventry, RI	9.1 GWh	12.8 mi
WED Coventry 3	Coventry, RI	3.4 GWh	11.1 mi
WED Coventry 4	Coventry, RI	2.7 GWh	11.3 mi
WED Coventry 5	Coventry, RI	3.3 GWh	13.6 mi
WED Coventry 6	Coventry, RI	7.6 GWh	12.8 mi
WED Coventry Seven, LLC	Coventry, RI	4.9 GWh	11 mi
Woods Hill Solar	Pomfret, CT	21.5 GWh	2.9 mi