12.5 MW Wood Waste out of service in Madera, CA — California Independent System Operator
12.5 MW
Nameplate Capacity
1
Generators
unit
Wood/Wood Waste Biomass
Technology
2008
Operating Since
Coordinates
37.1067, -120.2485
County
Madera, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Ampersand Chowchilla Biomass LLC | — | — |
| Owner(s) | Ampersand Chowchilla Biomass LLC | — | — |
| Status | Out of service | — | — |
Ampersand Chowchilla Biomass LLC is a 12.5 MW biomass power plant located in Madera County, California. The plant began operating in 2008 and utilizes wood and wood waste as its primary fuel source. It consists of a single generator. The plant is owned and operated by Ampersand Chowchilla Biomass LLC.
The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Ampersand Chowchilla Biomass is ranked as the 20th largest biomass plant in California out of 25, and 75th nationally out of 97 similar facilities. Regulatory issues have been a focus of news coverage related to the plant.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
120 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
CAISO
LMP Node
NP15
Pricing Hub
TH_ZP26_GEN-APND
Node Source
EIA-860 direct report
Ampersand clarifies power project placed-in-service analysis
The US Court of Appeals for the Federal Circuit released its decision in Ampersand Chowchilla Biomass LLC v. US in which the court considered when a power...
Open-Loop Biomass Facilities Not Entitled to Claimed Grants
AMPERSAND CHOWCHILLA BIOMASS, LLC, and MERCED POWER, LLC, Plaintiffs, v. THE UNITED STATES, Defendant. In the United States Court of Federal...
Dispute Over Grants for Open-Loop Biomass Facilities to Proceed
AMPERSAND CHOWCHILLA BIOMASS, LLC, and MERCED POWER, LLC, Plaintiffs, v. THE UNITED STATES, Defendant. In the United States Court of Federal...
Last updated 2026-03-14
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