Berkshire Power
Natural gas power plant in Hampden County, Massachusetts. 289 MW of nameplate capacity across 1 generator, operated by Berkshire Power Co LLC.
Also known as EIA plant 55041
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Key facts
- Capacity
- 289 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- September 1999First generator online
- Operator
- Berkshire Power Co LLCEIA operator ID 1616
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Hampden County, MA42.0476, −72.6478
- EIA plant ID
- 55041EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Berkshire Power produces
Free · EIA-923Net generation, 2025
810 GWh
809,512 MWh, final
Capacity factor, 2025
32.0%
2024: 22.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.1–1.1
TWh a year. Low 2023, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 661,541 | Not reported | 12 of 12 |
| 2001 | 622,807 | Not reported | 12 of 12 |
| 2002 | 1,379,085 | Not reported | 12 of 12 |
| 2003 | 1,204,139 | Not reported | 12 of 12 |
| 2004 | 1,232,319 | Not reported | 12 of 12 |
| 2005 | 1,172,387 | Not reported | 12 of 12 |
| 2006 | 637,693 | Not reported | 12 of 12 |
| 2007 | 87,219 | Not reported | 1 of 12 |
| 2008 | 1,120,307 | Not reported | 12 of 12 |
| 2009 | 709,290 | Not reported | 12 of 12 |
| 2010 | 1,002,963 | Not reported | 12 of 12 |
| 2011 | 1,060,233 | 41.9% | 12 of 12 |
| 2012 | 761,901 | 30.0% | 12 of 12 |
| 2013 | 1,114,904 | 44.0% | 12 of 12 |
| 2014 | 1,189,075 | 47.0% | 12 of 12 |
| 2015 | 1,108,977 | 43.8% | 12 of 12 |
| 2016 | 822,149 | 32.4% | 12 of 12 |
| 2017 | 387,265 | 15.3% | 12 of 12 |
| 2018 | 637,246 | 25.2% | 12 of 12 |
| 2019 | 367,488 | 14.5% | 12 of 12 |
| 2020 | 617,602 | 24.3% | 12 of 12 |
| 2021 | 779,620 | 30.8% | 12 of 12 |
| 2022 | 549,169 | 21.7% | 12 of 12 |
| 2023 | 70,140 | 2.8% | 12 of 12 |
| 2024 | 573,345 | 22.6% | 12 of 12 |
| 2025 | 809,512 | 32.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDCO₂, 2025
344,830
US short tons. 2024: 241,358
SO₂, 2025
2
US short tons
NOx, 2025
41
US short tons
CO₂ per MWh, calculated
0.43 t
About 852 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 55041 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
127
million gallons
Consumption, 2024
111
million gallons
Source
Municipal Reservoir
Surface, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.134
USGS SUI, HUC12 Pecousic Brook-Connecticut River
12 of 12 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GEN2 | Natural Gas Fired Combined Cycle | 289.0 | September 1999 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Berkshire Power Co LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Berkshire Power
How much power does Berkshire Power produce?
Berkshire Power reported 809,512 MWh (810 GWh) of net generation in 2025, a 32.0% capacity factor on 289 MW of nameplate capacity.
Where is Berkshire Power?
Berkshire Power is in Hampden County, Massachusetts, at 42.0476, −72.6478. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Berkshire Power?
EIA-860M for August 2026 lists Berkshire Power Co LLC as the operator (EIA operator ID 1616). The operator is not always the owner.
When did Berkshire Power start operating?
Its first generator began operating in September 1999, according to EIA-860M.
Does InfraMap have power prices for Berkshire Power?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Berkshire Power, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page