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Altech III — Power plant · Wind · Terra-Gen Operating Co-WindSolar Photovoltaic Project #45 — Solar · CA · 6 MW · 5.1 km awayPainted Hills IV Wind — Wind · CA · 19.5 MW · 5.8 km awayPainted Hills — Wind · CA · 17.5 MW · 5.9 km awayWestwind Trust — Wind · CA · 15.6 MW · 6.2 km awayAlta Mesa Project Phase IV — Wind · CA · 40 MW · 10.6 km away
  • Wind & solar
  • Retired
  • 10 · 100 · 1,000 MW

Altech III

Power plant · Wind

Key facts

Power plant · Windran 2% of 2019 Retired
Capacity
Capacity: sourceEIA-860M · Open licenseMW
Commissioned
1984
Net generation, 2019
4,982 MWh
Grid
34 kV to Southern California Edison Co (CISO)
Location
Riverside County, California
Operated by
Terra-Gen Operating Co-WindSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Output

Net generation MWh by year, 2001 to 2020

Operations detail

Details

Who’s behind it

No companies named in filings yet.

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Technology
Wind source: “Onshore Wind Turbine”
Age
42 years since 1984
All 2 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
AttributeValue
Gem
Unit ids
G100000908734
Location id
L100000906454
Eia plant ids
50485
Balancing authority codeCISO

Wind turbines

Turbines
5
Year online
1985

Source U.S. Wind Turbine Database

Source

  • U.S. Wind Turbine DatabaseOpen license · retrieved 25 Oct 2026Map services and data are available from U.S. Wind Turbine Database, provided by the U.S. Geological Survey, American Clean Power Association, and Lawrence Berkeley National Laboratory via https://energy.usgs.gov/uswtdb

Attribution

Retirement

EIA-860M September 2026StatusEvery generator EIA lists at this plant has retired. As of EIA-860M for September 2026.
Retired
February 2020
Capacity retired
25.1 MW
Generators retired
2
GeneratorTechnologyNameplateStateDate
GEN1Onshore Wind Turbine21.7 MWRetiredFebruary 2020
GEN2Onshore Wind Turbine3.4 MWRetiredFebruary 2020

Grid

EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).
Grid voltage at the plant
34 kV
Transmission or distribution system owner
Southern California Edison Co
Balancing authority
California Independent System Operator
NERC region
WECC
Transmission lines within 25 km (10)
Connection points within 25 km (1)
Can the connection be reused?

A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.

Timeline

  • Stated Units GEN1, GEN2 scheduled to retire, 25.1 MW · EIA-860M
  • In service · EIA-860M

Sources

7 sources

Sources EIA-860M · GEM · LBNL · CAISO · U.S. Wind Turbine Database · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory

Sources

Every source and license · Attribution

View at source

Around this plant

Nearby

within 25 km
ProjectKindAwayMW
Solar Photovoltaic Project #45 Postponed Solar 5.1 km 6
Painted Hills IV Wind Withdrawn Wind 5.8 km 19.5
Painted Hills Postponed Wind 5.9 km 17.5
Westwind Trust Postponed Wind 6.2 km 15.6
Alta Mesa Project Phase IV Postponed Wind 10.6 km 40

Sources EIA-860M · CAISO

Sources

Attribution