Union Sanitary District Cogen
Union Sanitary District Cogen is a 2 MW biomass power plant in Alameda County, California, operated by Union Sanitary District. EIA-860M lists 2 generating units here, inside CAISO. Its units entered service in 2015.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 1.8 MW
- 1.8 MW net summer
- Generating units
- 2
- In service
- 2015
- EIA plant ID
- 67485
Where it is
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- County
- Alameda County, California
- Coordinates
- 37.5896, -122.0907
- Balancing authority
- CISO
- Sector
- Commercial CHP
Units, technology and status
- Operator of record
- Union Sanitary District
- Primary energy source
- Biomass
- Technologies
- Other Waste Biomass
- Status
- Operating
Union Sanitary District Cogen: FAQ
- Where is Union Sanitary District Cogen?
- In Alameda County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Union Sanitary District Cogen?
- 2 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Union Sanitary District Cogen?
- EIA-860M names Union Sanitary District as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Union Sanitary District Cogen LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Union Sanitary District here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Union Sanitary District Cogen LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Union Sanitary District Cogen still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.