Minuteman Energy Storage
Battery storage project in Middlesex County, Massachusetts. 5 MW of nameplate capacity across 1 generator, operated by Minuteman Energy Storage, LLC.
Also known as EIA plant 62644
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- May 2019First generator online
- Operator
- Minuteman Energy Storage, LLCEIA operator ID 62122
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- None linkedNo verified ISO node
- Location
- Middlesex County, MA42.5676, −71.0981
- EIA plant ID
- 62644EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Minuteman Energy Storage produces
Free · EIA-923Net generation, 2025
−156 MWh
−156 MWh, final
Battery discharge, 2025
494 MWh
Charge 650 MWh
January to July 2026
−87 MWh
Provisional
Range, 2020 to 2025
−313.0–−155.0
MWh a year. Low 2024, high 2020
| 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 | −85 | Not reported | 8 of 12 |
| 2020 | −155 | Not reported | 12 of 12 |
| 2021 | −164 | Not reported | 12 of 12 |
| 2022 | −172 | Not reported | 12 of 12 |
| 2023 | −159 | Not reported | 12 of 12 |
| 2024 | −313 | Not reported | 12 of 12 |
| 2025 | −156 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −87 | Not reported | 7 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
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 |
|---|---|---|---|
| MMES | Batteries | 5.0 | May 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 Minuteman Energy Storage, 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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Questions about Minuteman Energy Storage
How much power does Minuteman Energy Storage produce?
Minuteman Energy Storage reported −156 MWh (−156 MWh) of net generation in 2025. From January to July 2026 it reported −87 MWh, which is provisional.
Where is Minuteman Energy Storage?
Minuteman Energy Storage is in Middlesex County, Massachusetts, at 42.5676, −71.0981. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Minuteman Energy Storage?
EIA-860M for August 2026 lists Minuteman Energy Storage, LLC as the operator (EIA operator ID 62122). The operator is not always the owner.
When did Minuteman Energy Storage start operating?
Its first generator began operating in May 2019, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page