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11.5 MW Hydro operating in Solano, CA — California Independent System Operator
11.5 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1983
Operating Since
Coordinates
38.5131, -122.1044
County
Solano, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Solano Irrigation District | — | — |
| Owner(s) | Solano Irrigation District | — | — |
| Status | Operating | — | — |
Monticello Dam is a 304-foot (93 m) high concrete arch dam in Napa County, California, United States, constructed between 1953 and 1957. The dam impounded Putah Creek to create Lake Berryessa in the Vaca Mountains.
Read more on WikipediaMonticello Dam is a hydroelectric power plant located in Solano County, California. The plant has a total capacity of 11.5 MW consisting of 3 generators and went into operation in 1983. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. The owner and operator is Solano Irrigation District.
The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In the most recent year with available data, Monticello Dam generated 36,386 MWh of electricity, achieving a capacity factor of 35.9%. Monticello Dam is ranked as the 114th largest power plant in California out of 247 plants, and 634th nationally out of 1464 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
1.0K MWh
Latest Month
36.4K MWh
Annual Generation
35.9%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $26.4M
Point of Interconnection
Nearest Substation
Solano Irrigation Dist
Substation Distance
0.003 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
MONTICLO_7_N002
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
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ask pi about Monticello DamCalifornia Independent System Operator (CISO)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility