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126 MW Hydro operating in Plumas, CA — California Independent System Operator
126 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1950
Operating Since
Coordinates
39.9052, -121.3452
County
Plumas, CA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Pacific Gas & Electric Co. | Pacific Gas and Electric | — |
| Owner(s) | Pacific Gas & Electric Co. | PG&E | — |
| Status | Operating | operating | — |
Rock Creek is a 126 MW hydroelectric power plant located in Plumas County, California. The plant, which began operating in 1950, utilizes conventional hydroelectric technology and consists of two generators. It is owned and operated by Pacific Gas & Electric (PG&E).
In the most recent year with available data, Rock Creek generated 597,570 MWh of electricity, resulting in a capacity factor of 54.3%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. According to available data, the installed cost of the plant was $1,549.5 per kW. Rock Creek ranks as the 31st largest power plant out of 42 in California, and 154th out of 194 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
50.9K MWh
Latest Month
597.6K MWh
Annual Generation
54.3%
Capacity Factor
Hydro with storage · PACIFIC GAS AND ELECTRIC COMPANY · Data from 2015–2024
$1,567/kW
Installed Cost
$11.5/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Rock Creek Switchyard
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
ROCKCK1_7_B1
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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ask pi about Rock CreekCalifornia Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility