Groton Wind LLC
Wind power plant in Grafton County, New Hampshire. 48 MW of nameplate capacity across 1 generator, operated by Avangrid Power LLC.
Also known as Groton Wind · Groton · EIA plant 58141
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 48 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 2012First generator online
- Operator
- Avangrid Power LLCEIA operator ID 15399
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Grafton County, NH43.7681, −71.8189
- EIA plant ID
- 58141EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Groton Wind produces
Free · EIA-923Net generation, 2025
115 GWh
114,677 MWh, final
Capacity factor, 2025
27.3%
2024: 24.3%
January to July 2026
62.5 GWh
Provisional
Range, 2015 to 2025
101.8–121.4
GWh a year. Low 2023, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | 6,308 | Not reported | 1 of 12 |
| 2013 | 97,570 | 23.2% | 12 of 12 |
| 2014 | 108,413 | 25.8% | 12 of 12 |
| 2015 | 114,765 | 27.3% | 12 of 12 |
| 2016 | 121,408 | 28.8% | 12 of 12 |
| 2017 | 112,974 | 26.9% | 12 of 12 |
| 2018 | 105,237 | 25.0% | 12 of 12 |
| 2019 | 107,744 | 25.6% | 12 of 12 |
| 2020 | 106,749 | 27.6% | 11 of 12 |
| 2021 | 114,079 | 27.1% | 12 of 12 |
| 2022 | 111,247 | 26.5% | 12 of 12 |
| 2023 | 101,816 | 24.2% | 12 of 12 |
| 2024 | 102,405 | 24.3% | 12 of 12 |
| 2025 | 114,677 | 27.3% | 12 of 12 |
| 2026 (provisional, partial year) | 62,477 | 25.6% | 7 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 |
|---|---|---|---|
| 1 | Onshore Wind Turbine | 48.0 | December 2012 |
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 Avangrid Power LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Modeled curtailment
A range, not one number. The lower bound counts hours inside the production tax credit window; the upper bound is the no-credit case.
Expected vs reported generation
Monthly modeled expected output and physical potential next to EIA-923 reported output.
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Power plants near Groton Wind
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Questions about Groton Wind
How much power does Groton Wind LLC produce?
Groton Wind LLC reported 114,677 MWh (115 GWh) of net generation in 2025, a 27.3% capacity factor on 48 MW of nameplate capacity. From January to July 2026 it reported 62.5 GWh, which is provisional.
Where is Groton Wind LLC?
Groton Wind LLC is in Grafton County, New Hampshire, at 43.7681, −71.8189. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Groton Wind LLC?
EIA-860M for August 2026 lists Avangrid Power LLC as the operator (EIA operator ID 15399). The operator is not always the owner.
When did Groton Wind LLC start operating?
Its first generator began operating in December 2012, according to EIA-860M.
Does InfraMap have power prices for Groton Wind LLC?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Groton Wind LLC, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
- Project names from the USGS U.S. Wind Turbine Database
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page