HydroOperatingISO-NE

Bulls Bridge

Hydro power plant in Litchfield County, Connecticut. 7.2 MW of nameplate capacity across 6 generators, operated by FirstLight Power Resources Services LLC.

Also known as EIA plant 541

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Dover CSGRocky River (CT)Kimberly Clark-Unit 1,2,3New Milford Gas RecoveryBulls Bridge5 km
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5 plants within 14 km, from EIA coordinates.

Key facts

Capacity
7.2 MWNameplate
Generators
6 operatingEIA-860M, August 2026
Operating since
January 1903First generator online
Operator
FirstLight Power Resources Services LLCEIA operator ID 54895
Grid
ISO-NEBalancing authority ISNE
Price nodes
1 ISONE nodeResource nodes with prices
Location
Litchfield County, CT41.6590, −73.4920
EIA plant ID
541EIA plant page

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

How much power Bulls Bridge produces

Free · EIA-923

Net generation, 2025

26.9 GWh

26,892 MWh, final

Capacity factor, 2025

42.6%

2024: 48.8%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

18.7–48.0

GWh a year. Low 2016, high 2018

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200050,314Not reported12 of 12
200131,124Not reported12 of 12
200235,276Not reported12 of 12
200351,079Not reported12 of 12
200446,614Not reported12 of 12
200537,012Not reported12 of 12
200646,118Not reported12 of 12
200734,186Not reported12 of 12
200851,986Not reported12 of 12
200953,999Not reported12 of 12
201038,34160.8%12 of 12
201143,36368.8%12 of 12
201229,78847.1%12 of 12
201335,44656.2%12 of 12
201437,92960.1%12 of 12
201524,37238.6%12 of 12
201618,67729.5%12 of 12
201731,90850.6%12 of 12
201848,03676.2%12 of 12
201936,36557.7%12 of 12
202028,16444.5%12 of 12
202139,09062.0%12 of 12
202233,55253.2%12 of 12
202341,76266.2%12 of 12
202430,84048.8%12 of 12
202526,89242.6%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 · ISONE

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
1Conventional Hydroelectric1.2January 1903
2Conventional Hydroelectric1.2January 1903
3Conventional Hydroelectric1.2January 1903
4Conventional Hydroelectric1.2January 1903
5Conventional Hydroelectric1.2January 1903
6Conventional Hydroelectric1.2January 1903

Ownership and offtake

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Pro

Ownership and offtake are part of Pro

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

Modeled data

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

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Power plants near Bulls Bridge

More plants operated by FirstLight Power Resources Services LLC

Questions about Bulls Bridge

How much power does Bulls Bridge produce?

Bulls Bridge reported 26,892 MWh (26.9 GWh) of net generation in 2025, a 42.6% capacity factor on 7.2 MW of nameplate capacity.

Where is Bulls Bridge?

Bulls Bridge is in Litchfield County, Connecticut, at 41.6590, −73.4920. It is in the ISO New England Inc. balancing area (ISNE).

Who operates Bulls Bridge?

EIA-860M for August 2026 lists FirstLight Power Resources Services LLC as the operator (EIA operator ID 54895). The operator is not always the owner.

When did Bulls Bridge start operating?

Its first generator began operating in January 1903, according to EIA-860M.

Does InfraMap have power prices for Bulls Bridge?

Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Bulls Bridge, 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