SolarOperatingISO-NE

Berkley

Solar power plant in Bristol County, Massachusetts. 3 MW of nameplate capacity across 1 generator, operated by Captona Berkley LLC.

Also known as EIA plant 64112

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Berkley East Solar LLCPadelford SolarLakeville SolarWest Water StreetCleary Flood HybridBerkley2 km
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6 plants within 7.7 km, from EIA coordinates.

Key facts

Capacity
3 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
April 2017First generator online
Operator
Captona Berkley LLCEIA operator ID 63741
Grid
ISO-NEBalancing authority ISNE
Price nodes
None linkedNo verified ISO node
Location
Bristol County, MA41.8415, −71.0183
EIA plant ID
64112EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Berkley produces

Free · EIA-923

Net generation, 2025

3.75 GWh

3,748 MWh, final

Capacity factor, 2025

14.3%

2024: 15.2%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2020 to 2025

3.7–4.3

GWh a year. Low 2025, high 2020

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
2001Not reportedNot reported0 of 12
2002Not reportedNot reported0 of 12
2003Not reportedNot reported0 of 12
2004Not reportedNot reported0 of 12
2005Not reportedNot reported0 of 12
2006Not reportedNot reported0 of 12
2007Not reportedNot reported0 of 12
2008Not reportedNot reported0 of 12
2009Not reportedNot reported0 of 12
2010Not reportedNot reported0 of 12
2011Not reportedNot reported0 of 12
2012Not reportedNot reported0 of 12
2013Not reportedNot reported0 of 12
2014Not reportedNot reported0 of 12
2015Not reportedNot reported0 of 12
2016Not reportedNot reported0 of 12
2017Not reportedNot reported0 of 12
2018Not reportedNot reported0 of 12
2019Not reportedNot reported0 of 12
20204,30816.3%12 of 12
20214,16715.9%12 of 12
20224,27516.3%12 of 12
20234,07315.5%12 of 12
20243,99715.2%12 of 12
20253,74814.3%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 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

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No 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
GeneratorTechnologyNameplate MWOnline since
CPMA3Solar Photovoltaic3.0April 2017

Ownership and offtake

Pro
Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Captona Berkley LLC as the operator, which is not always the owner.

Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

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.

Modeled

Expected vs reported generation

Monthly modeled expected output and physical potential next to EIA-923 reported output.

Analyst and MCP

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Power plants near Berkley

Questions about Berkley

How much power does Berkley produce?

Berkley reported 3,748 MWh (3.75 GWh) of net generation in 2025, a 14.3% capacity factor on 3 MW of nameplate capacity.

Where is Berkley?

Berkley is in Bristol County, Massachusetts, at 41.8415, −71.0183. It is in the ISO New England Inc. balancing area (ISNE).

Who operates Berkley?

EIA-860M for August 2026 lists Captona Berkley LLC as the operator (EIA operator ID 63741). The operator is not always the owner.

When did Berkley start operating?

Its first generator began operating in April 2017, 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