HydroOperatingCAISO

Drum 2

Hydro power plant in Placer County, California. 53.1 MW of nameplate capacity across 1 generator, operated by Pacific Gas & Electric Co..

Also known as Drum 2 Power Plant · EIA plant 236

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Alta PowerhouseDutch Flat 2Deer Creek PHDrum 25 km
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5 plants within 8.0 km, from EIA coordinates.

Key facts

Capacity
53.1 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
December 1965First generator online
Operator
Pacific Gas & Electric Co.EIA operator ID 14328
Grid
CAISOBalancing authority CISO
Price nodes
1 CAISO nodeResource nodes with prices
Location
Placer County, CA39.2574, −120.7670
EIA plant ID
236EIA plant page

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

How much power Drum 2 produces

Free · EIA-923

Net generation, 2025

164 GWh

164,163 MWh, final

Capacity factor, 2025

35.3%

2024: 31.9%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

148.6–311.2

GWh a year. Low 2024, high 2017

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000295,682Not reported12 of 12
2001180,907Not reported12 of 12
2002304,231Not reported12 of 12
2003301,071Not reported12 of 12
2004308,298Not reported12 of 12
2005347,172Not reported12 of 12
2006336,043Not reported12 of 12
2007223,416Not reported12 of 12
2008256,106Not reported12 of 12
2009262,497Not reported12 of 12
2010301,21164.8%12 of 12
2011283,61061.0%12 of 12
2012271,75158.3%12 of 12
2013240,92851.8%12 of 12
2014170,81436.7%12 of 12
2015175,38637.7%12 of 12
2016246,25052.8%12 of 12
2017311,21466.9%12 of 12
2018231,24349.7%12 of 12
2019278,49059.9%12 of 12
2020216,02646.3%12 of 12
2021163,53335.2%12 of 12
2022261,23556.2%12 of 12
2023271,03158.3%12 of 12
2024148,56031.9%12 of 12
2025164,16335.3%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 · 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
5Conventional Hydroelectric53.1December 1965

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 Pacific Gas & Electric Co. as the operator, which is not always the owner.

Modeled data

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Power plants near Drum 2

More plants operated by Pacific Gas & Electric Co.

Questions about Drum 2

How much power does Drum 2 produce?

Drum 2 reported 164,163 MWh (164 GWh) of net generation in 2025, a 35.3% capacity factor on 53.1 MW of nameplate capacity.

Where is Drum 2?

Drum 2 is in Placer County, California, at 39.2574, −120.7670. It is in the California Independent System Operator balancing area (CISO).

Who operates Drum 2?

EIA-860M for August 2026 lists Pacific Gas & Electric Co. as the operator (EIA operator ID 14328). The operator is not always the owner.

When did Drum 2 start operating?

Its first generator began operating in December 1965, according to EIA-860M.

Does InfraMap have power prices for Drum 2?

Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Drum 2, 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
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page