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289 MW Natural Gas operating in Hampden, MA — ISO New England Inc.
289 MW
Nameplate Capacity
1
Generators
unit
Natural Gas Fired Combined Cycle
Technology
1999
Operating Since
Coordinates
42.0479, -72.6476
County
Hampden, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Berkshire Power Co LLC | Berkshire Power | — |
| Owner(s) | Berkshire Power Co LLC | Tenaska Energy | — |
| Status | Operating | — | — |
Berkshire Power is a 289 MW natural gas-fired combined cycle power plant located in Hampden County, Massachusetts. The plant began operating in 1999 and has one generator. It is owned by Tenaska Energy and operated by Berkshire Power Co LLC. Berkshire Power is connected to the ISO New England Inc. balancing authority and is within the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year of data, Berkshire Power generated 573,345 MWh of electricity, achieving a capacity factor of 22.4%. The plant ranks as the 7th largest in Massachusetts out of 15 plants, and nationally it ranks 653rd out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
53.5K MWh
Latest Month
573.3K MWh
Annual Generation
22.4%
Capacity Factor
CO₂ Intensity
871 lb/MWh
NOx
0.156 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $278.9M
Point of Interconnection
Nearest Substation
Berkshire Power Substation · 115 kV
Substation Distance
< 10 km
Operator
Berkshire Power Co LLC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.BERK_PWR21 BERK(1086)
Pricing Hub
.H.INTERNAL_HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all 5 articlesISO New England Inc. (ISNE)
Grid Voltage
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.005 lb/MWh
CH₄
0.017 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
2.8%
Annual Net Gen
70 GWh
CO₂eq
872 lb/MWh
Subregion
NPCC New England