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52.2 MW Hydro operating in Amador, CA — California Independent System Operator
52.2 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1931
Operating Since
Coordinates
38.4493, -120.4926
County
Amador, 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 | — |
Tiger Creek is a 52.2 MW hydroelectric power plant located in Amador County, California. The plant, which began operating in 1931, utilizes conventional hydroelectric technology and consists of two generators. It is owned and operated by Pacific Gas & Electric Co. (PG&E). The plant's primary fuel source is water (WAT).
In the most recent year with available data, Tiger Creek generated 225,092 MWh of electricity, achieving a capacity factor of 49.0%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Tiger Creek ranks 63rd out of 247 power plants in California and 295th out of 1464 plants nationally. Financial data indicates an installed cost of $2923.03 per kW.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
22.5K MWh
Latest Month
225.1K MWh
Annual Generation
49.0%
Capacity Factor
Hydro with storage · PACIFIC GAS AND ELECTRIC COMPANY · Data from 2015–2024
$3,004/kW
Installed Cost
$29.8/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Tiger Creek
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
TIGRCK_7_UNITS-APND
Pricing Hub
TH_NP15_GEN-APND
Location Type
Aggregated Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Tiger CreekCalifornia Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility