How big is Mountainview Generating Station?

Mountainview Generating Station has a reported capacity of 1,036.8 MW. Source: EIA Form 860.

What kind of plant is Mountainview Generating Station?

Mountainview Generating Station is a Natural Gas Fired Combined Cycle facility in San Bernardino County, CA, participating in the CAISO market.

Where is Mountainview Generating Station located?

Mountainview Generating Station is in San Bernardino County, CA, inside the CAISO balancing area.

Who operates Mountainview Generating Station?

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.

How much electricity does Mountainview Generating Station generate?

Mountainview Generating Station reported 1,091.4 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

Where does Mountainview Generating Station connect to the grid?

Mountainview Generating Station on the Southern California Edison Co system.

How does Mountainview Generating Station compare to other plants?

By capacity, Mountainview Generating Station ranks #88 of 538 operating plants of the same technology nationally. It ranks #3 of 64 in CA.

Mountainview Generating Station — 1,037 MW gas plant, CA

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Mountainview Generating Station — 1,037 MW gas plant, CA · Ask the Grid

Overview

Reported capacity: 1,036.8 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combined Cycle
Primary generation technology.
Registry anchor: Plant 358
San Bernardino County · CAISO
Operating status: Operating
Mountainview Generating Station is operating.

Infrastructure record

Operator: Southern California Edison Co

Profile

Grid role: Local-capacity market generation in the CAISO LA Basin Eastern/West of Devers area; GE and SCE describe the upgrades as improving flexibility to respond to CAISO's solar-heavy system.
Context: 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.
Physical build: Two-unit natural-gas combined-cycle facility. Each unit includes two GE 7FA.04 combustion-turbine generators, two heat-recovery steam generators, and one GE DI1/D11 steam-turbine generator, for a total of 4 combustion turbines, 4 HRSGs, and 2 steam turbines. The HRSGs are identified as Foster Wheeler supplementary-fired units.

Structured profile

Reported capacity: 1,036.8 MW
Natural Gas Fired Combined Cycle
Operating status: operating
Mountainview Generating Station is operating.
Location: San Bernardino County
CAISO
Asset role: natural gas
CAISO · San Bernardino County

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Units and generators

Operating 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 Natural Gas · CT	Dec 2005	Operating
MV3B	164.6 MW 156 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Dec 2005	Operating
MV3C	189.2 MW 197 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Dec 2005	Operating
MV4A	164.6 MW 156 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jan 2006	Operating
MV4B

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 1,036.8 MW; Natural Gas Fired Combined Cycle
National rank: #88; of 538 operating peers
CA rank: #3; of 64 operating peers

Monthly generation

Download CSV

Latest 12 months

1.09 TWh

Reported net generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 capacity factor

15.1%

Using current reported nameplate capacity

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory

SAN BERNARDINO

IN SERVICE · 500 kV

0.4 km

CAPSULE

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Transactions and agreements

Offtake Agreement

Feb 25, 2004

FERC conditionally approved the PPA between Southern California Edison and Mountainview Power Company LLC on February 25, 2004. The agreement is a 30-year, cost-based tolling contract under which Mountainview commits all plant output to SCE; SCE procures gas, hedges fuel, and dispatches the plant, with contract recovering investment, fixed and variable costs, and a regulated return.

30 yearsSouthern California Edison Company · Mountainview Power Company LLC

D0403037/A0307032 Adopted FERC Changes to PPA in D0312059

Land and environmental record

Air Emissions Controls And Limits

2016

Title V major source status; continuous emissions monitoring for NOx and CO; 2.0 ppmvd NOx BACT concentration limit.

SCAQMD permit materials identify the plant as a major source subject to Title V; turbines use continuous emissions monitors for NOx and CO; facility permit contains 2.0 ppmvd NOx BACT limit per Condition A433.1.

DOCKETED

Site Acreage

Mar 25, 2022

54.3-acre parcel in the City of Redlands.

A 2022 CEC notice indicates that the facility is located on a 54.3-acre parcel in Redlands. This represents total site acreage, not parcel ownership allocation across units.

Notice of Receipt - California Energy Commission : e-filing

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOwner / operatorOfftakerContractorEquipment

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Feb 1, 2000
Feb 1, 2000
Application for certification filedMountainvie...
Thermo Ecotek filed the application for certification for the Mountainview project with the California Energy Commission.
Mar 21, 2001
Mar 21, 2001

Reporting portfolio

EIA reporting entity

Southern California Edison Co

Entity 17609

Operating portfolio

34 plants

1 states

Reported capacity

2,702.4 MW

Batteries · Conventional Hydroelectric · Hydroelectric Pumped Storage

Largest reported plants in this portfolio
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 portfolio

Mountainview Generating Station