Coalinga 25D Cogen

Gas power plant in California, United States of America. Approximate location 36.1556, -120.3972.

GasCaliforniaUnited States of AmericaCO₂ modelled

Coalinga 25D Cogen is a 14 MW gas power plant in California, United States of America. It is operated by Chevron USA Inc. Based on reported annual generation of 69 GWh, it can supply roughly 20k homes. It ranks #5291 of 10,938 United States of America power plants by installed capacity. Commissioned in 1987, it is around 39 years old — long-established. Its modelled annual emissions are 19,762 t CO₂/yr (Climate TRACE), equivalent to about 4.6k cars driven for a year. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

14Source-backed capacity
69GWh reported / yr
19,714homes powered
19,762t CO₂ / yr (Climate TRACE)
1987commissioned (~39 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052086.

Data status

Known data

FacilityCoalinga 25D Cogen WRI
CountryUnited States of America · California WRI
Coordinates36.1556, -120.3972 WRI
FuelGas WRI
MW installed capacity14 MW WRI source record; scope not independently normalised
OwnerChevron USA Inc WRI
Commissioned1987 WRI
GWh reported / yr69 GWh/yr WRI

Modelled source data

CO₂ emissions19,762 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#5291 of 10938 calculated
Fuel-specific rank in country#1701 of 2165 calculated
Capacity vs country/fuel peers0.11× · 121 MW median · 2165 peers calculated
Homes-powered equivalent19,714 calculated from reported generation
Climate17.3°C · HDD 1,212 derived from coordinates
Environmental severityC1 · 40/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 14 MW, Coalinga 25D Cogen is below the median gas plant in United States of America (121 MW). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

~19,762 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

4.6kpassenger cars driven for a year
2.6khomes' yearly energy use
329ktree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Reported generation trend

2013: 62 GWh20132014: 59 GWh20142015: 65 GWh20152016: 74 GWh20162017: 75 GWh20172018: 71 GWh20182019: 69 GWh201975 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Chevron USA Inc. All plants by this company →

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 36.2°N — which shapes how much energy it can produce and how its output varies through the year.

17.3°Cannual mean temp
1,212heating degree-days (base 18°C)
981cooling degree-days (base 18°C)
244 melevation

Monthly mean temperature

J: 8 °CJF: 11 °CFM: 13 °CMA: 16 °CAM: 20 °CMJ: 24 °CJJ: 27 °CJA: 27 °CAS: 24 °CSO: 19 °CON: 12 °CND: 8 °CD27 °C

Heating degree-days here run 51% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 29/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~2% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
40/100environmental-severity index
19.0°Cseasonal temperature swing
89 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #1701 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 36.1556, -120.3972 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Coalinga 25D Cogen?

Coalinga 25D Cogen is a 14 MW source-record gas power plant in California, United States of America, commissioned in 1987.

How much electricity does Coalinga 25D Cogen generate?

Coalinga 25D Cogen generates about 69 GWh of electricity per year.

How many homes can Coalinga 25D Cogen power?

Its output is enough to supply roughly 19,714 homes.

Who operates Coalinga 25D Cogen?

Coalinga 25D Cogen is operated by Chevron USA Inc.

How much CO₂ does Coalinga 25D Cogen emit?

Coalinga 25D Cogen has modelled emissions of about 19,762 tonnes of CO₂ per year (Climate TRACE).

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