Lee Site 31 Solar
Solar power plant in Berkshire County, Massachusetts. 1.9 MW of nameplate capacity across 1 generator, operated by NSTAR Electric Company.
Also known as EIA plant 62265
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.9 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- August 2018First generator online
- Operator
- NSTAR Electric CompanyEIA operator ID 54913
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Berkshire County, MA42.2969, −73.2275
- EIA plant ID
- 62265EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Lee Site 31 Solar produces
Free · EIA-923Net generation, 2025
149 MWh
149 MWh, final
Capacity factor, 2025
0.9%
2024: 1.8%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2019 to 2025
0.1–2.7
GWh a year. Low 2025, 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 | 418 | Not reported | 5 of 12 |
| 2019 | 2,149 | 12.9% | 12 of 12 |
| 2020 | 2,650 | 15.9% | 12 of 12 |
| 2021 | 2,466 | 14.8% | 12 of 12 |
| 2022 | 2,497 | 15.0% | 12 of 12 |
| 2023 | 2,311 | 13.9% | 12 of 12 |
| 2024 | 296 | 1.8% | 12 of 12 |
| 2025 | 149 | 0.9% | 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 |
|---|---|---|---|
| LG370 | Solar Photovoltaic | 1.9 | August 2018 |
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 NSTAR Electric Company 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 Lee Site 31 Solar
More plants operated by NSTAR Electric Company
Questions about Lee Site 31 Solar
How much power does Lee Site 31 Solar produce?
Lee Site 31 Solar reported 149 MWh (149 MWh) of net generation in 2025, a 0.9% capacity factor on 1.9 MW of nameplate capacity.
Where is Lee Site 31 Solar?
Lee Site 31 Solar is in Berkshire County, Massachusetts, at 42.2969, −73.2275. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Lee Site 31 Solar?
EIA-860M for August 2026 lists NSTAR Electric Company as the operator (EIA operator ID 54913). The operator is not always the owner.
When did Lee Site 31 Solar start operating?
Its first generator began operating in August 2018, according to EIA-860M.
Does InfraMap have power prices for Lee Site 31 Solar?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Lee Site 31 Solar, 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