HydroOperatingCAISO

Kelly Ridge

Hydro power plant in Butte County, California. 10 MW of nameplate capacity across 1 generator, operated by South Feather Water and Power Agency.

Also known as EIA plant 418

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Thermalito Diverson DamOroville Cogeneration, LLCThermalitoForbestownButte College Main Campus SolarKelly Ridge10 km
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6 plants within 18 km, from EIA coordinates.

Key facts

Capacity
10 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
September 1963First generator online
Operator
South Feather Water and Power AgencyEIA operator ID 14191
Grid
CAISOBalancing authority CISO
Price nodes
1 CAISO nodeResource nodes with prices
Location
Butte County, CA39.5318, −121.4912
EIA plant ID
418EIA plant page

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

How much power Kelly Ridge produces

Free · EIA-923

Net generation, 2025

69.1 GWh

69,070 MWh, final

Capacity factor, 2025

78.8%

2024: 75.7%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

6.8–74.1

GWh a year. Low 2017, high 2016

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200077,746Not reported12 of 12
200160,589Not reported12 of 12
200281,610Not reported12 of 12
200383,730Not reported12 of 12
200484,305Not reported12 of 12
200581,232Not reported12 of 12
200680,519Not reported12 of 12
200770,247Not reported12 of 12
200868,640Not reported12 of 12
200972,385Not reported12 of 12
201077,67988.7%12 of 12
201174,13984.6%12 of 12
201263,18271.9%12 of 12
201339,62445.2%12 of 12
201433,07037.8%12 of 12
201538,98944.5%12 of 12
201674,14884.4%12 of 12
20176,7857.7%12 of 12
201831,48735.9%12 of 12
201959,92168.4%12 of 12
202048,08254.7%12 of 12
202139,22344.8%12 of 12
202252,59660.0%12 of 12
202364,97074.2%12 of 12
202466,53475.7%12 of 12
202569,07078.8%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 · CAISO

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 Hydroelectric10.0September 1963

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists South Feather Water and Power Agency as the operator, which is not always the owner.

Modeled data

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Power plants near Kelly Ridge

More plants operated by South Feather Water and Power Agency

Questions about Kelly Ridge

How much power does Kelly Ridge produce?

Kelly Ridge reported 69,070 MWh (69.1 GWh) of net generation in 2025, a 78.8% capacity factor on 10 MW of nameplate capacity.

Where is Kelly Ridge?

Kelly Ridge is in Butte County, California, at 39.5318, −121.4912. It is in the California Independent System Operator balancing area (CISO).

Who operates Kelly Ridge?

EIA-860M for August 2026 lists South Feather Water and Power Agency as the operator (EIA operator ID 14191). The operator is not always the owner.

When did Kelly Ridge start operating?

Its first generator began operating in September 1963, according to EIA-860M.

Does InfraMap have power prices for Kelly Ridge?

Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Kelly Ridge, 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)
  • CAISO 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