Kearsarge Amesbury Hybrid
Solar and battery storage project in Essex County, Massachusetts. 4.9 MW of nameplate capacity across 2 generators, operated by Kearsarge Amesbury LLC.
Also known as EIA plant 63398
This project groups Kearsarge Amesbury Hybrid (EIA 63398). EIA reports them as separate plants.
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 4.9 MWSolar 3.3 · Battery storage 1.6
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 2019First generator online
- Operator
- Kearsarge Amesbury LLCEIA operator ID 63163
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Essex County, MA42.8374, −70.9387
- EIA plant ID
- 63398EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Kearsarge Amesbury Hybrid produces
Free · EIA-923Net generation, 2025
5.00 GWh
5,000 MWh, final
Capacity factor, 2025
17.9%
2024: 19.2%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2020 to 2025
5.0–5.7
GWh a year. Low 2025, high 2022
| 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 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | 0 | Not reported | 1 of 12 |
| 2020 | 5,337 | 18.7% | 12 of 12 |
| 2021 | 5,461 | 18.9% | 12 of 12 |
| 2022 | 5,712 | 20.2% | 12 of 12 |
| 2023 | 5,103 | 18.2% | 12 of 12 |
| 2024 | 5,385 | 19.2% | 12 of 12 |
| 2025 | 5,000 | 17.9% | 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 |
|---|---|---|---|
| AMBAT | Batteries | 1.6 | December 2019 |
| AMES | Solar Photovoltaic | 3.3 | December 2019 |
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 Kearsarge Amesbury 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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Questions about Kearsarge Amesbury Hybrid
How much power does Kearsarge Amesbury Hybrid produce?
Kearsarge Amesbury Hybrid reported 5,000 MWh (5.00 GWh) of net generation in 2025, a 17.9% capacity factor on 4.9 MW of nameplate capacity.
Where is Kearsarge Amesbury Hybrid?
Kearsarge Amesbury Hybrid is in Essex County, Massachusetts, at 42.8374, −70.9387. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Kearsarge Amesbury Hybrid?
EIA-860M for August 2026 lists Kearsarge Amesbury LLC as the operator (EIA operator ID 63163). The operator is not always the owner.
Is Kearsarge Amesbury Hybrid a solar or a battery storage plant?
Both. Solar capacity totals 3.3 MW and battery storage capacity totals 1.6 MW.
When did Kearsarge Amesbury Hybrid start operating?
Its first generator began operating in December 2019, according to EIA-860M.
Does InfraMap have power prices for Kearsarge Amesbury Hybrid?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Kearsarge Amesbury Hybrid, 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