Ormesa III — Plant Summary
- EIA Plant ID
- 10763
- Capacity
- 45.6 MW
- Primary Fuel
- Geothermal
- Technology
- Geothermal
- Status
- Operating
- Location
- Imperial, CA
- Operating Since
- 1989
- Generators
- 3
- Operator
- Ormat Nevada Inc
- Parent Company
- —
- Annual Generation
- 44,416 MWh
- Capacity Factor
- 11.1%
- Balancing Authority
- Imperial Irrigation District
- ISO/RTO
- —
- NERC Region
- WECC
Ormesa III
OperatingGeothermal
Ranked #17 of 33 Geothermal plants in CA#26 of 70 nationally
45.6 MW Geothermal operating in Imperial, CA — Imperial Irrigation District
EIAGEMWD
45.6 MW
Nameplate Capacity
3
Generators
units
Geothermal
Technology
1989
Operating Since
Location
Coordinates
32.7757, -115.2637
County
Imperial, CA
Nearby Plants
- Geo East Mesa IIGeothermal21.6 MW · 0.0 km
- Ormesa IIGeothermal24 MW · 2.0 km
- Vikings Energy FarmBESS286.8 MW · 3.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Ormat Nevada Inc | — | — |
| Owner(s) | Ormat Nevada Inc | — | — |
| Status | Operating | operating | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Ormesa III is a 45.6 MW geothermal power plant located in Imperial County, California. The plant began operating in 1989 and is owned and operated by Ormat Nevada Inc. It utilizes geothermal technology for electricity generation. The plant consists of 3 generators and is interconnected to the Imperial Irrigation District balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, Ormesa III generated 44,416 MWh of electricity, resulting in a capacity factor of 11.1%. Ormesa III is ranked as the 17th largest geothermal plant in California (out of 33) and the 26th largest in the United States (out of 70). Recent news coverage of Ormesa III includes 2 articles related to deals and 1 article related to industry news.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Imperial Irrigation District
Grid Voltage
92 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
4.7K MWh
Latest Month
44.4K MWh
Annual Generation
11.1%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (3)Beta
Deals·ppa
Ormat extends 25-year power agreement with California authorities
RENO, Nev.- Ormat Technologies, Inc. (NYSE:ORA), a $5.8 billion renewable energy company currently trading near its 52-week high,...
Ormat Technologies, Inc. (seller)California authorities (buyer)
The Desert Review·7 months ago
Industry·technology
Pumped geothermal power projects – a global overview
Geothermal pumped-well power projects are a growing niche within the larger geothermal industry, contributing approximately 1000 MWe of installed generating...
GeoExpro·2 years ago
Deals·ppa
Ormat enters new 25-year PPA for its Ormesa geothermal complex in California
Ormat Technologies entered intoa a 25-year Power Purchase Agreement with SCPPA to deliver a contract capacity of 35 MW from its Ormesa Geothermal Power Complex.
Ormat (seller)Ormat Technologies (seller)
ThinkGeoEnergy·9 years ago
Last updated 2026-03-26
View all articles