New Haven Steam

1 Waterfront Street, New Haven, CT 6512

Plant Summary Information

New Haven Steam is ranked #14 out of 52 residual fuel oil power plants nationwide in terms of total annual net electricity generation.

New Haven Steam is comprised of 4 generators and generated 89.7 GWh during the 3-month period between October 2025 to January 2026.

Plant Name	New Haven Steam
Utility Name	Generation Bridge II Connecticut, LLC
Location	South Central Connecticut Planning Region, CT
Initial Operation Date	July 1975
Last Update	Jan 2026
Annual Generation	167.4 GWh
Annual Consumption	2.1 M MMBtu
Ranked #2,794 out of 13,081 Power Plants Nationwide
Ranked #14 out of 52 Residual Fuel Oil Power Plants Nationwide
Ranked #12 out of 168 Connecticut Power Plants
Ranked #2 out of 3 Connecticut Residual Fuel Oil Power Plants
Fuel Types	Residual Fuel Oil : 45.1% Natural Gas : 40.3% Distillate Fuel Oil : 12.2% Kerosene : 2.5%
Previous Operator	PSEG Power Connecticut LLC (2013 to 2021) Generation Bridge II Connecticut, LLC (2022 to 2025)

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Monthly Net Generation for New Haven Steam

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Monthly Plant Fuel Consumption for New Haven Steam

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New Haven Steam Details

Summary Information
Plant Name	New Haven Steam (6156)
Plant Address	1 Waterfront Street, New Haven, CT 6512
Utility	Generation Bridge II Connecticut, LLC (65448)
Latitude, Longitude	41.284, -72.90432
Generation Dates on File	Jan 2001 to Jan 2026
Initial Operation Date	July 1975
Annual Generation	167.4 GWh
Fuel Types	Residual Fuel Oil : 45.1% Natural Gas : 40.3% Distillate Fuel Oil : 12.2% Kerosene : 2.5%

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	Yes
FERC Exempt Wholesale Generator Docket Number	11-9-000

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	New Haven Harbor
Ash Impoundment	No
Transmission / Distribution Owner	United Illuminating Co (19497) CT
Grid Voltage	115.00 kV
Energy Storage	No

Natural Gas Information
Local Distribution Company (LDC)	SOUTHERN CONNECTICUT GAS COMPANY
Natural Gas Storage	No

* Data obtained from the 2025 EIA 860 Report

Generator 1 Details Operating July 1975

Technology	Petroleum Liquids
Prime Mover	Steam Turbine
Ownership	Single Owner
RTO ISO LMP Node Designation	513
RTO ISO Location Designation For Reporting Wholesale Sales Data	513
Nameplate Capacity	460 MW
Nameplate Power Factor	0.9
Summer Capacity	432.6 MW
Winter Capacity	453.3 MW
Minimum Load	100 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	July 1975
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Residual Fuel Oil / Natural Gas
Startup Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	OVER
Multiple Fuels	Yes
Cofire Fuels	Yes
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Cofire Energy Source	RFO / NG
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	150 MW
Net Winter Capacity With Natural Gas	150 MW
Net Summer Capacity With Oil	447.9 MW
Net Winter Capacity With Oil	436.6 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Other Limits	Yes

Generator 2 Details Operating June 2012

Technology	Petroleum Liquids
Prime Mover	Combustion Turbine
Ownership	Wholly Owned by Other Entity
RTO ISO LMP Node Designation	15477
RTO ISO Location Designation For Reporting Wholesale Sales Data	15477
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.2 MW
Winter Capacity	47.7 MW
Minimum Load	43 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	June 2012
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Kerosene / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
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	42.9 MW
Net Winter Capacity With Natural Gas	48.6 MW
Net Summer Capacity With Oil	42.9 MW
Net Winter Capacity With Oil	48.6 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Storage Limits	Yes

Generator 3 Details Operating June 2012

Technology	Petroleum Liquids
Prime Mover	Combustion Turbine
Ownership	Wholly Owned by Other Entity
RTO ISO LMP Node Designation	40052
RTO ISO Location Designation For Reporting Wholesale Sales Data	40052
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.2 MW
Winter Capacity	47.7 MW
Minimum Load	43 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	June 2012
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Kerosene / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
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	42.9 MW
Net Winter Capacity With Natural Gas	48.6 MW
Net Summer Capacity With Oil	42.9 MW
Net Winter Capacity With Oil	48.6 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Storage Limits	Yes

Generator 4 Details Operating June 2012

Technology	Petroleum Liquids
Prime Mover	Combustion Turbine
Ownership	Wholly Owned by Other Entity
RTO ISO LMP Node Designation	40053
RTO ISO Location Designation For Reporting Wholesale Sales Data	40053
Nameplate Capacity	60.5 MW
Nameplate Power Factor	0.85
Summer Capacity	43.2 MW
Winter Capacity	47.7 MW
Minimum Load	43 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	June 2012
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Kerosene / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
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	42.9 MW
Net Winter Capacity With Natural Gas	48.6 MW
Net Summer Capacity With Oil	42.9 MW
Net Winter Capacity With Oil	48.6 MW
Time To Switch From Gas To Oil	1H
Time To Switch From Oil To Gas	1H
Factors That Limit Switching	Yes
Storage Limits	Yes

New Haven Steam Plant Owners

Owner Name	Address	Generator	Ownership
Generation Bridge II New Haven LLC	600 Connecticut Ave, New Haven, CT 6512	Generator 2	100.00%
Generation Bridge II New Haven LLC	600 Connecticut Ave, New Haven, CT 6512	Generator 3	100.00%
Generation Bridge II New Haven LLC	600 Connecticut Ave, New Haven, CT 6512	Generator 4	100.00%

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Residual Fuel Oil.

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#5	William F Wyman Hybrid	Yarmouth, ME	338.6 GWh
#6	Canal	Sandwich, MA	546.2 GWh
#7	Roseton Generating Facility	Newsburgh, NY	795.9 GWh
#8	Kahului	Kahului, HI	152.1 GWh
#9	W H Hill	Hilo, HI	145.4 GWh
#10	TalenEnergy Martins Creek	Bangor, PA	2.8 TWh
#11	Oswego Harbor Power	Oswego, NY	130.8 GWh
#12	Newington	Newington, NH	157.4 GWh
#13	Montville Station	Uncasville, CT	133.2 GWh
#15	Port Jefferson	Port Jefferson, NY	416.1 GWh
#16	Bowline Point	West Haverstraw, NY	1.9 TWh
#17	E F Barrett	Island Park, NY	1.1 TWh
#18	Northside Generating Station	Jacksonville, FL	3.5 TWh
#19	Middletown	Middletown, CT	33.0 GWh
#20	Georgia-Pacific Cedar Springs	Cedar Springs, GA	468.1 GWh
#21	Somerset Plant	Skowhegan, ME	567.7 GWh
#22	Puna	Keaau, HI	58.1 GWh
#23	Dartmouth College Heating Plant	Hanover, NH	10.6 GWh
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Nearby Power Plants

Below are closest 20 power plants surrounding New Haven Steam.

Plant Name	Plant Location	Annual Generation	Distance
Amazon BDL3 Solar Project	New Haven, CT	1.7 GWh	11.8 mi
Benz Solar 1	Ansonia, CT	1.3 GWh	9.1 mi
Benz Solar 2	Ansonia, CT	1.3 GWh	9.1 mi
Branford	Branford, CT	288.0 MWh	5.7 mi
Derby Fuel Cell	Derby, CT	110.3 GWh	10.5 mi
Derby Hydro	Shelton, CT	22.7 GWh	10.6 mi
Dynamic Energy CT STAG	Milford, CT	2.5 GWh	7.3 mi
Emerald Gardens PKI, LLC	Shelton, CT	2.0 GWh	11.3 mi
GenConn Devon LLC	Milford, CT	15.1 GWh	11.7 mi
IKEA New Haven Rooftop PV & Fuel Cell	New Haven, CT	2.7 GWh	1.1 mi
Medtronic - New Haven	North Haven, CT	18.0 GWh	4.1 mi
Medtronic - New Haven 2	North Haven, CT	16.9 GWh	4.4 mi
Milford Power Project	Milford, CT	3.2 TWh	11 mi
North Haven Solar One	North Haven, CT	2.8 GWh	7.3 mi
Park Solar	Woodbridge, CT	1.5 GWh	5.6 mi
Sikorsky Aircraft CHP	Stratford, CT	65.3 GWh	10.4 mi
Town of Branford	Branford, CT	1.5 GWh	4.9 mi
UI RCP New Haven Fuel Cell	New Haven, CT	20.5 GWh	0.4 mi
UI RCP Woodbridge FC	Woodbridge, CT	16.7 GWh	7.4 mi
Wallingford Solar	Wallingford, CT	15.4 GWh	11.4 mi