Stony Brook

Moody Street, Ludlow, MA 1056

Plant Summary Information

Stony Brook is ranked #25 out of 629 power plants in Massachusetts in terms of total annual net electricity generation.

Stony Brook is comprised of 10 generators and generated 41.0 GWh during the 3-month period between June 2025 to September 2025.

Plant Name	Stony Brook
Utility Name	Massachusetts Mun Wholes Electric Co
Location	Hampden County, MA
Initial Operation Date	November 1981
Last Update	Sep 2025
Annual Generation	125.4 GWh
Annual Consumption	1.2 M MMBtu
Ranked #3,134 out of 12,539 Power Plants Nationwide
Ranked #922 out of 2,243 Natural Gas Power Plants Nationwide
Ranked #25 out of 629 Massachusetts Power Plants
Ranked #20 out of 44 Massachusetts Natural Gas Power Plants
Fuel Types	Natural Gas : 74.6% Distillate Fuel Oil : 25.4%

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Monthly Net Generation for Stony Brook

Stony Brook Details

Summary Information
Plant Name	Stony Brook (6081)
Plant Address	Moody Street, Ludlow, MA 1056
Utility	Massachusetts Mun Wholes Electric Co (11806)
Latitude, Longitude	42.1978, -72.5106
Generation Dates on File	Jan 2001 to Sep 2025
Initial Operation Date	November 1981
Annual Generation	125.4 GWh
Fuel Types	Natural Gas : 74.6% Distillate Fuel Oil : 25.4%

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	Regulated
NERC Region	NPCC
Balancing Authority	ISO New England Inc. (ISNE)
NAICS Code	Utilities (22)
Sector	Electric Utility (1)
Water Source	Municipality
Ash Impoundment	No
Transmission / Distribution Owner	Western Massachusetts Electric Company (20455) MA
Grid Voltage	345.00 kV
Energy Storage	No

Natural Gas Information
Local Distribution Company (LDC)	COLUMBIA GAS OF MASSACHUSETTS
Natural Gas Storage	No
Liquefied Natural Gas Storage	No

* Data obtained from the 2024 EIA 860 Report

Generator CA1 Details Operating November 1981

Technology	Petroleum Liquids
Prime Mover	Combined Cycle Steam Part
Unit Code	CC1
Ownership	Jointly Owned
Duct Burners	No
Nameplate Capacity	105 MW
Nameplate Power Factor	0.9
Summer Capacity	96 MW
Winter Capacity	105 MW
Minimum Load	20 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	November 1981
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	12H
Multiple Fuels	No

Generator CT1 Details Operating November 1981

Technology	Petroleum Liquids
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Jointly Owned
Can Bypass Heat Recovery Steam Generator	Yes
RTO ISO LMP Node Designation	UN.STONYBRK13.2ST1A
RTO ISO Location Designation For Reporting Wholesale Sales Data	.Z.WCMASS
Nameplate Capacity	85 MW
Nameplate Power Factor	0.9
Summer Capacity	69.7 MW
Winter Capacity	87 MW
Minimum Load	40 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	November 1981
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	Yes
Cofire Fuels	Yes
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Cofire Energy Source	DFO / NG
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	69.7 MW
Net Winter Capacity With Natural Gas	69.7 MW
Net Summer Capacity With Oil	69.7 MW
Net Winter Capacity With Oil	69.7 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 CT2 Details Operating November 1981

Technology	Petroleum Liquids
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Jointly Owned
Can Bypass Heat Recovery Steam Generator	Yes
RTO ISO LMP Node Designation	UN.STONYBRK13.2ST1B
RTO ISO Location Designation For Reporting Wholesale Sales Data	.Z.WCMASS
Nameplate Capacity	85 MW
Nameplate Power Factor	0.9
Summer Capacity	69.7 MW
Winter Capacity	87 MW
Minimum Load	55 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	November 1981
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	Yes
Cofire Fuels	Yes
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Cofire Energy Source	DFO / NG
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	69.7 MW
Net Winter Capacity With Natural Gas	69.7 MW
Net Summer Capacity With Oil	69.7 MW
Net Winter Capacity With Oil	69.7 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 CT3 Details Operating November 1981

Technology	Petroleum Liquids
Prime Mover	Combined Cycle Combustion Turbine Part
Unit Code	CC1
Ownership	Jointly Owned
Can Bypass Heat Recovery Steam Generator	Yes
RTO ISO LMP Node Designation	UN.STONYBRK13.2ST1C
RTO ISO Location Designation For Reporting Wholesale Sales Data	.Z.WCMASS
Nameplate Capacity	85 MW
Nameplate Power Factor	0.9
Summer Capacity	69.7 MW
Winter Capacity	87 MW
Minimum Load	40 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	November 1981
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil / Natural Gas
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	Yes
Cofire Fuels	Yes
Switch Between Oil And Natural Gas	Yes

Multifuel Details
Cofire Energy Source	DFO / NG
Switch When Operating	Yes
Net Summer Capacity With Natural Gas	69.7 MW
Net Winter Capacity With Natural Gas	69.7 MW
Net Summer Capacity With Oil	69.7 MW
Net Winter Capacity With Oil	69.7 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 EDSI Details Operating November 1981

Technology	Petroleum Liquids
Prime Mover	Internal Combustion Engine
Ownership	Jointly Owned
Nameplate Capacity	0.6 MW
Nameplate Power Factor	0.9
Summer Capacity	0.6 MW
Winter Capacity	0.6 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No
Status	Operating

First Operation Date	November 1981
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No
Cofire Fuels	No

Generator 1 Details Operating November 1982

Technology	Petroleum Liquids
Prime Mover	Combustion Turbine
Ownership	Jointly Owned
RTO ISO LMP Node Designation	UN.STONTBRK13.2ST2A
RTO ISO Location Designation For Reporting Wholesale Sales Data	.Z.WCMASS
Nameplate Capacity	85 MW
Nameplate Power Factor	0.9
Summer Capacity	65 MW
Winter Capacity	85 MW
Minimum Load	40 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	November 1982
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Generator 2 Details Operating November 1982

Technology	Petroleum Liquids
Prime Mover	Combustion Turbine
Ownership	Jointly Owned
RTO ISO LMP Node Designation	UN.STONYBRK13.2ST2B
RTO ISO Location Designation For Reporting Wholesale Sales Data	.Z.WCMASS
Nameplate Capacity	85 MW
Nameplate Power Factor	0.9
Summer Capacity	65 MW
Winter Capacity	85 MW
Minimum Load	40 MW
Uprate/Derate Completed	No

Status	Operating
First Operation Date	November 1982
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Carbon Capture Technology	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No
Cofire Fuels	No

Generator BS#1 Details Standby September 2007

Technology	Petroleum Liquids
Prime Mover	Internal Combustion Engine
Ownership	Jointly Owned
Nameplate Capacity	2 MW
Nameplate Power Factor	0.9
Summer Capacity	2 MW
Winter Capacity	2 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No
Status	Standby

Synchronized To Transmission Grid	No
First Operation Date	September 2007
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No
Switch Between Oil And Natural Gas	No

Generator BS#2 Details Standby September 2007

Technology	Petroleum Liquids
Prime Mover	Internal Combustion Engine
Ownership	Jointly Owned
Nameplate Capacity	2 MW
Nameplate Power Factor	0.9
Summer Capacity	2 MW
Winter Capacity	2 MW
Minimum Load	0.2 MW
Uprate/Derate Completed	No

Status	Standby
Synchronized To Transmission Grid	No
First Operation Date	September 2007
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Generator 5051S Details Operating June 2018

Technology	Solar Photovoltaic
Prime Mover	Photovoltaic
Ownership	Single Owner
RTO ISO LMP Node Designation	4007
RTO ISO Location Designation For Reporting Wholesale Sales Data	Z.WCMASS
Nameplate Capacity	6.9 MW
Nameplate Power Factor	1
Summer Capacity	6.9 MW

Winter Capacity	6.9 MW
Uprate/Derate Completed	No
Status	Operating
First Operation Date	June 2018
Combined Heat & Power	No
Sector Name	Electric Utility (1)
Energy Source	Solar

Solar Details
Fixed Tilt	Yes
Bifacial	Yes
Azimuth Angle	166
Tilt Angle	20
DC Net Capacity	10.4 MW
Thin Film CDTE	Yes
Net Metering Agreement	No
Virtual Net Metering Agreement	No

Stony Brook Plant Owners

Owner Name	Address	Generator	Ownership
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator 1	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator 1	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator 1	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator 2	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator 2	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator 2	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator BS#1	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator BS#1	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator BS#1	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator BS#2	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator BS#2	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator BS#2	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator CA1	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator CA1	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator CA1	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator CT1	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator CT1	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator CT1	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator CT2	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator CT2	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator CT2	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator CT3	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator CT3	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator CT3	90.76%
Green Mountain Power Corp	163 Acorn Lane, Colchester, VT 5446	Generator EDSI	8.80%
The Town of Lyndon Electric Department	P O Box 167, Lyndonville, VT 5851	Generator EDSI	0.44%
Massachusetts Mun Wholes Electric Co	327 Moody Street, Ludlow, MA 1056	Generator EDSI	90.76%

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Natural Gas.

Rank	Plant Name	Plant Location	Annual Generation
#912	Nearman Creek	Kansas, KS	1.3 TWh
#913	Bridgeport Fuel Cell, LLC	Bridgeport, CT	96.8 GWh
#914	Mont Belvieu Cogeneration Unit	Mont Belvieu, TX	95.4 GWh
#915	De Pere Energy Center	De Pere, WI	138.0 GWh
#916	Rawhide	Wellington, CO	1.4 TWh
#917	Duke Energy CHP at Clemson University	Clemson, SC	95.0 GWh
#918	International Paper Texarkana Mill	Queen City, TX	336.7 GWh
#919	Central Utility Plant - Texas A&M	College Station, TX	94.1 GWh
#920	Calcasieu	Sulphur, LA	94.1 GWh
#921	Central Utility Plant at White Oak	Silver Spring, MD	94.1 GWh
#923	Centrahoma West	Centrahoma, OK	93.1 GWh
#924	Goodman Energy Center	Hays, KS	92.9 GWh
#925	Selkirk Cogen	Selkirk, NY	92.4 GWh
#926	491 E 48th Street	Holland, MI	92.2 GWh
#927	PCA, Filer City Mill	Filer City, MI	91.5 GWh
#928	Spiritwood Station	Spiritwood, ND	154.3 GWh
#929	Delray	Detroit, MI	91.1 GWh
#930	Tenaska Georgia Generation Facility	Franklin, GA	94.0 GWh
#931	Pea Ridge	Pace, FL	88.2 GWh
#932	University of Notre Dame	Notre Dame, IN	88.5 GWh

Nearby Power Plants

Below are closest 20 power plants surrounding Stony Brook.

Plant Name	Plant Location	Annual Generation	Distance
Ameresco Chicopee Energy	Chicopee, MA	9.5 GWh	2.8 mi
CED Chicopee Solar	Chicopee, MA	4.8 GWh	2.1 mi
Chicopee	Chicopee, MA	2.6 GWh	1.2 mi
Chicopee River Solar	Springfield, MA	3.1 GWh	3.9 mi
Chicopee Solar	Chicopee, MA	4.6 GWh	3.8 mi
Cottage Street Solar Facility	Springfield, MA	3.5 GWh	3.9 mi
Granby LFG	Granby, MA	3.1 GWh	2.8 mi
Granby Solar, LLC CSG	Granby, MA	6.1 GWh	2.1 mi
Huxley Solar	Ludlow, MA	10.2 GWh	1.6 mi
Indian Orchard	Indian Orchard, MA	6.3 GWh	2.6 mi
Indian Orchard Plant 1	Springfield, MA	137.0 MWh	2.9 mi
Indian Orchard PV Facility	Springfield, MA	2.5 GWh	3.3 mi
Kearsarge Granby	Granby, MA	3.6 GWh	1.7 mi
Kearsarge Ludlow LLC	Ludlow, MA	5.8 GWh	0.9 mi
Ludlow Landfill	Ludlow, MA	3.4 GWh	1.1 mi
Ludlow Site 72 - Conti	Ludlow, MA	2.5 GWh	4 mi
Masspower	Indian Orchard, MA	475.7 GWh	2.9 mi
Oak Street Solar	Springfield, MA	5.6 GWh	3.5 mi
Putts Bridge	Ludlow, MA	16.0 GWh	3 mi
Riverside Holyoke	Holyoke, MA	38.4 GWh	4.3 mi