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168.6 MW Hydro operating in Shasta, CA — California Independent System Operator
168.6 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1965
Operating Since
Coordinates
40.9923, -121.9752
County
Shasta, 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 | — |
The James B Black Hydroelectric Plant is located in Shasta County, California. The plant has a total capacity of 168.6 MW across two generators, utilizing conventional hydroelectric technology. It began operating in 1965 and is owned and operated by Pacific Gas & Electric (PG&E). The plant's primary fuel source is water (WAT). It ranks as the 21st largest of 42 hydroelectric plants in California, and 116th of 194 nationally.
In the most recent year with available data, the James B Black plant generated 623,836 MWh, achieving a capacity factor of 42.2%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $545.77 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
62.4K MWh
Latest Month
623.8K MWh
Annual Generation
42.2%
Capacity Factor
Hydro with storage · PACIFIC GAS AND ELECTRIC COMPANY · Data from 2015–2024
$608/kW
Installed Cost
$6.8/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
CAISO
LMP Node
JBBLACK1_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 James B BlackCalifornia Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility