Parker

Parker is a 3 MW hydroelectric power plant in Merced County, California, operated by Merced Irrigation District. EIA-860M lists 1 generating unit here, inside CAISO. Its unit entered service in 1982.

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
2.7 MW
2.7 MW net summer
Generating units
1
In service
1982
EIA plant ID
428

Where it is

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County
Merced County, California
Coordinates
37.4778, -120.4445
Balancing authority
CISO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Merced Irrigation District
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Merced Irrigation District reports to EIA →

Parker: FAQ

Where is Parker?
In Merced 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 Parker?
3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Parker?
EIA-860M names Merced Irrigation 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 Parker LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Merced Irrigation 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 "Parker LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Parker still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.