Mountainview Generating Station
San Bernardino County
Mountainview Generating Station is a natural gas-fired power facility with 1,036.8 MW of EIA-reported nameplate capacity in San Bernardino County, California, registered as EIA Plant ID 358. PowerMag described Mountainview as California’s first utility-developed power plant in 15 years. The plant has also operated as a flexible Inland Empire resource, dispatched as a roughly 600-MW mid-peaker during morning periods and at higher output later in the day.
Mapped infrastructure geometry associated with this asset.
Natural Gas Fired Combined Cycle
Mountainview Generating Station is operating.
CAISO
CAISO · San Bernardino County
EIA plant 358 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| MV3A | Natural Gas Fired Combined Cycle | Operating | 164.6 | Unknown |
| MV3B | Natural Gas Fired Combined Cycle | Operating | 164.6 | Unknown |
| MV3C | Natural Gas Fired Combined Cycle | Operating | 189.2 | Unknown |
| MV4A | Natural Gas Fired Combined Cycle | Operating | 164.6 | Unknown |
| MV4B |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| MV3A | 164.6 MW 156 MW summer | Natural Gas Fired Combined Cycle CT | Dec 2005 | Operating |
| MV3B | 164.6 MW 156 MW summer | Natural Gas Fired Combined Cycle CT | Dec 2005 | Operating |
| MV3C | 189.2 MW 197 MW summer | Natural Gas Fired Combined Cycle CA | Dec 2005 | Operating |
| MV4A | 164.6 MW 156 MW summer | Natural Gas Fired Combined Cycle CT | Jan 2006 | Operating |
| MV4B | 164.6 MW | |||
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Drag organizations to explore the network. Select a node to pin its details and available page link.
Project milestones and public references behind the asset profile.
Thermo Ecotek filed the application for certification for the Mountainview project with the California Energy Commission.
| Natural Gas Fired Combined Cycle |
| Operating |
| 164.6 |
| Unknown |
| MV4C | Natural Gas Fired Combined Cycle | Operating | 189.2 | Unknown |
|---|
| 1 | Natural Gas Steam Turbine | Retired | 65.3 | Unknown |
|---|
| 2 | Natural Gas Steam Turbine | Retired | 65.3 | Unknown |
|---|
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Mountainview Generating StationCurrent | 1,036.8 MW | CA | |
| Cathode (Hinson) BESS | 200 MW | CA | |
| J S Eastwood | 199.8 MW | CA | |
| Mammoth Pool | 190 MW | CA | |
| Big Creek 3 | 174.5 MW | CA | |
| Separator (Etiwanda) BESS | 112.5 MW | CA | |
| Big Creek 4 | 100 MW | CA | |
| Big Creek 1 | 88.4 MW | CA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioThe California Energy Commission certified the project under docket 00-AFC-02.
AES suspended construction amid California market uncertainty when the project was approximately 15% complete; engineering was approximately 85% complete and equipment procurement approximately 80% complete.
SCE signed an option agreement with Sequoia Generating LLC, an InterGen subsidiary, to acquire Mountainview Power Company, LLC and enter into a long-term tolling power-purchase arrangement.
Southern California Edison acquired Mountainview Power Company LLC from Sequoia Generating LLC on March 12, 2004. SEC filings disclose $285 million of acquisition costs related to Mountainview; the source does not separately identify that amount as seller purchase consideration.
EIA-860 lists generator MV3A, generator MV3B, generator MV3C with this operating date.
EIA-860 lists generator MV4A, generator MV4B, generator MV4C with this operating date.
The CEC recorded staff approval for installation of electric-vehicle charging stations at the project.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Mountainview Generating Station reports 1,036.8 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Mountainview Generating Station is a Natural Gas Fired Combined Cycle facility in San Bernardino County, CA, participating in the CAISO market.
Mountainview Generating Station is in San Bernardino County, CA, inside the CAISO balancing area.
Mountainview Generating Station is operated by Southern California Edison Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Mountainview Generating Station reported 1,232.3 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Mountainview Generating Station on the Southern California Edison Co system.
By capacity, Mountainview Generating Station ranks #89 of 540 operating plants of the same technology nationally. It ranks #3 of 64 in CA.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.