Exchequer — Plant Summary
- EIA Plant ID
- 409
- Capacity
- 94.5 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Mariposa, CA
- Operating Since
- 1967
- Generators
- 1
- Operator
- Merced Irrigation District
- Parent Company
- —
- Annual Generation
- 267,905 MWh
- Capacity Factor
- 32.3%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Exchequer
OperatingHydro
Ranked #45 of 247 Hydro plants in CA#201 of 1454 nationally
94.5 MW Hydro operating in Mariposa, CA — California Independent System Operator
EIAGEMWD
94.5 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1967
Operating Since
Location
Coordinates
37.5843, -120.2686
County
Mariposa, CA
Nearby Plants
- McSwainHydro9 MW · 7.8 km
- Merced FallsHydro3.4 MW · 8.7 km
- La GrangeHydro4.5 MW · 18.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Merced Irrigation District | Merced Irrigation District [100%] | — |
| Owner(s) | Merced Irrigation District | Merced Irrigation District [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as Merced Irrigation District [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
The Exchequer hydroelectric plant is located in Mariposa County, California. The plant has a total capacity of 94.5 MW and began operating in 1967. It is owned and operated by Merced Irrigation District. The plant utilizes conventional hydroelectric technology and its primary fuel source is water (WAT). Exchequer is connected to the California Independent System Operator (CAISO) balancing authority and is within the Western Electricity Coordinating Council (WECC) NERC region.
Exchequer ranks as the 45th largest power plant in California out of 247 facilities, and 202nd nationally out of 1464 plants. The plant's latest annual generation was 267,905 MWh, resulting in a capacity factor of 32.3%. The plant consists of one generator.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Political Subdivision
Sector
IPP Non-CHP
Generation
3.2K MWh
Latest Month
267.9K MWh
Annual Generation
32.3%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
POD_EXCHEC_7_UNIT 1-APND
Pricing Hub
TH_NP15_GEN-APND
Location Type
Aggregated Node
Node Source
EIA-860 direct report
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