Berlin Gorham
Hydro and battery storage project in Coos County, New Hampshire. 44.3 MW of nameplate capacity across 22 generators, operated by Great Lakes Hydro America LLC.
Also known as EIA plant 54639
This project groups Berlin Gorham (EIA 54639). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 44.3 MWHydro 30.3 · Battery storage 14.0
- Generators
- 22 operatingEIA-860M, August 2026
- Operating since
- January 1914First generator online
- Operator
- Great Lakes Hydro America LLCEIA operator ID 7595
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 2 ISONE nodesResource nodes with prices
- Location
- Coos County, NH44.3889, −71.1645
- EIA plant ID
- 54639EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Berlin Gorham produces
Free · EIA-923Net generation, 2025
101 GWh
101,103 MWh, final
Capacity factor, 2025
38.7%
2024: 50.8%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
101.1–168.0
GWh a year. Low 2025, high 2023
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 189,128 | Not reported | 12 of 12 |
| 2002 | 90,808 | Not reported | 12 of 12 |
| 2003 | 155,867 | Not reported | 12 of 12 |
| 2004 | 169,371 | Not reported | 12 of 12 |
| 2005 | 256,333 | Not reported | 12 of 12 |
| 2006 | 26,335 | Not reported | 12 of 12 |
| 2007 | 28,560 | Not reported | 12 of 12 |
| 2008 | 29,649 | Not reported | 12 of 12 |
| 2009 | 200,618 | Not reported | 12 of 12 |
| 2010 | 182,684 | Not reported | 12 of 12 |
| 2011 | 171,249 | 64.5% | 12 of 12 |
| 2012 | 180,099 | 67.7% | 12 of 12 |
| 2013 | 189,789 | 71.5% | 12 of 12 |
| 2014 | 153,190 | 57.7% | 12 of 12 |
| 2015 | 142,301 | 53.6% | 12 of 12 |
| 2016 | 153,299 | 57.6% | 12 of 12 |
| 2017 | 150,761 | 56.8% | 12 of 12 |
| 2018 | 118,846 | 44.8% | 12 of 12 |
| 2019 | 127,551 | 48.1% | 12 of 12 |
| 2020 | 138,442 | 52.0% | 12 of 12 |
| 2021 | 115,750 | 43.6% | 12 of 12 |
| 2022 | 137,349 | 51.7% | 12 of 12 |
| 2023 | 167,965 | Not reported | 12 of 12 |
| 2024 | 133,480 | 50.8% | 12 of 12 |
| 2025 | 101,103 | 38.7% | 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 CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| BESS1 | Batteries | 14.0 | December 2023 |
| CAS1 | Conventional Hydroelectric | 2.4 | January 1914 |
| CAS2 | Conventional Hydroelectric | 2.4 | January 1916 |
| CAS3 | Conventional Hydroelectric | 3.1 | January 1918 |
| GOR1 | Conventional Hydroelectric | 1.2 | January 1920 |
| GOR2 | Conventional Hydroelectric | 1.2 | January 1920 |
| GOR3 | Conventional Hydroelectric | 1.2 | January 1920 |
| GOR4 | Conventional Hydroelectric | 1.2 | January 1920 |
| RS1 | Conventional Hydroelectric | 3.8 | January 1920 |
| RS3 | Conventional Hydroelectric | 4.1 | January 1920 |
| SH2 | Conventional Hydroelectric | 0.9 | January 1916 |
| SHL1 | Conventional Hydroelectric | 0.9 | January 1916 |
| SHL3 | Conventional Hydroelectric | 1.8 | January 1929 |
| SM1 | Conventional Hydroelectric | 0.8 | October 1980 |
| SM2 | Conventional Hydroelectric | 0.8 | October 1980 |
| SM3 | Conventional Hydroelectric | 0.7 | October 1980 |
| SM4 | Conventional Hydroelectric | 0.8 | October 1980 |
| XP1 | Conventional Hydroelectric | 0.6 | January 1921 |
| XP2 | Conventional Hydroelectric | 0.6 | January 1921 |
| XP3 | Conventional Hydroelectric | 0.6 | January 1921 |
| XP4 | Conventional Hydroelectric | 0.5 | January 1921 |
| XP5 | Conventional Hydroelectric | 0.7 | January 1924 |
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 Great Lakes Hydro America LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Berlin Gorham
More plants operated by Great Lakes Hydro America LLC
Questions about Berlin Gorham
How much power does Berlin Gorham produce?
Berlin Gorham reported 101,103 MWh (101 GWh) of net generation in 2025, a 38.7% capacity factor on 44.3 MW of nameplate capacity.
Where is Berlin Gorham?
Berlin Gorham is in Coos County, New Hampshire, at 44.3889, −71.1645. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Berlin Gorham?
EIA-860M for August 2026 lists Great Lakes Hydro America LLC as the operator (EIA operator ID 7595). The operator is not always the owner.
Is Berlin Gorham a hydro or a battery storage plant?
Both. Hydro capacity totals 30.3 MW and battery storage capacity totals 14 MW.
When did Berlin Gorham start operating?
Its first generator began operating in January 1914, according to EIA-860M.
Does InfraMap have power prices for Berlin Gorham?
Yes. InfraMap has ISONE day-ahead and real-time prices at 2 price nodes linked to Berlin Gorham, 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)
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page