El Centro Hybrid

Gas power plant in California, United States of America. Approximate location 32.8022, -115.54.

GasCaliforniaUnited States of AmericaCCGT · HRSGCO₂ measured

El Centro Hybrid is a 358 MW gas power station in California, United States of America. It is operated by Imperial Irrigation District. Based on reported annual generation of 638 GWh, it can supply roughly 182k homes. It ranks #1502 of 10,938 United States of America power plants by installed capacity. Commissioned in 1993, it is around 33 years old — long-established. Its annual emissions of 510,179 t CO₂/yr (US EPA GHGRP) are equivalent to about 119k 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).

358Source-backed capacity
2HRSG unit(s)
638GWh reported / yr
182,371homes powered
510,179t CO₂ / yr (US EPA GHGRP)
1993commissioned (~33 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000389.

Data status

Known data

FacilityEl Centro Hybrid WRI
CountryUnited States of America · California WRI
Coordinates32.8022, -115.54 WRI
FuelGas WRI
MW installed capacity358 MW WRI source record; scope not independently normalised
OwnerImperial Irrigation District WRI
Commissioned1993 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr638 GWh/yr WRI
CO₂ emissions510,179 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#1502 of 10938 calculated
Fuel-specific rank in country#716 of 2165 calculated
Capacity vs country/fuel peers2.95× · 121 MW median · 2165 peers calculated
Homes-powered equivalent182,371 calculated from reported generation
Climate22.2°C · HDD 493 derived from coordinates
Environmental severityC1 · 43/100 derived from coordinates

Not available

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: GEM tracker 2026 (location L100000402010); fuel: WRI source-record fuel

In context: how this plant compares

At 358 MW, El Centro Hybrid is well above the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

510,179 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

119kpassenger cars driven for a year
67khomes' yearly energy use
8.5 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 0 GWh20132014: 0 GWh20142015: 999 GWh20152016: 0 GWh20162017: 1,045 GWh20172018: 750 GWh20182019: 638 GWh20191k GWh

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

Owner

Operated by Imperial Irrigation District. 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 hot desert climate (Köppen BWh) — Northern Hemisphere, latitude 32.8°N — which shapes how much energy it can produce and how its output varies through the year.

22.2°Cannual mean temp
493heating degree-days (base 18°C)
2,057cooling degree-days (base 18°C)
-3 melevation

Monthly mean temperature

J: 12 °CJF: 15 °CFM: 17 °CMA: 21 °CAM: 24 °CMJ: 29 °CJJ: 33 °CJA: 33 °CAS: 30 °CSO: 24 °CON: 17 °CND: 12 °CD33 °C

Heating degree-days here run 80% 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: 20/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~5% 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)
43/100environmental-severity index
20.4°Cseasonal temperature swing
164 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 #716 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 32.8022, -115.54 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is El Centro Hybrid?

El Centro Hybrid is a 358 MW source-record gas power plant in California, United States of America, commissioned in 1993.

How much electricity does El Centro Hybrid generate?

El Centro Hybrid generates about 638 GWh of electricity per year.

How many homes can El Centro Hybrid power?

Its output is enough to supply roughly 182,371 homes.

Who operates El Centro Hybrid?

El Centro Hybrid is operated by Imperial Irrigation District.

How much CO₂ does El Centro Hybrid emit?

El Centro Hybrid has measured emissions of about 510,179 tonnes of CO₂ per year (US EPA GHGRP).

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