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74.2 MW Hydro operating in Los Angeles, CA — California Independent System Operator
74.2 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1982
Operating Since
Coordinates
34.6853, -118.7881
County
Los Angeles, 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 | California Dept. of Water Resources | California Department of Water Resources | — |
| Owner(s) | California Dept. of Water Resources | California Department of Water Resources | — |
| Status | Operating | operating | — |
GEM identifies the owner as California Department of Water Resources
This entity is not yet in the GEM ownership database — chain unavailable.
The W E Warne hydroelectric plant is located in Los Angeles County, California. The plant has a total capacity of 74.2 MW across two generators and came online in 1982. It is owned and operated by the California Department of Water Resources. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology.
The W E Warne plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In terms of size, it is ranked as the 52nd largest power plant in California out of 247, and 238th nationally out of 1464 plants. The latest annual generation data indicates an output of 171,455 MWh, resulting in a capacity factor of 26.3%.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
21.5K MWh
Latest Month
171.5K MWh
Annual Generation
26.3%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $170.3M
Market Position
ISO/RTO Market
CAISO
LMP Node
WARNE_2_B1
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
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ask pi about W E WarneCalifornia Independent System Operator (CISO)
Grid Voltage
220.0 kV
Regulatory Status
RE — Regulated
Entity Type
State
Sector
Electric Utility