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Delta Energy Center

Gas power plant in California, United States of America. Approximate location 38.0169, -121.8439.

GasCaliforniaUnited States of AmericaCCGT · HRSGCO₂ measured

Delta Energy Center is a 944 MW gas power station in California, United States of America. It is operated by Delta Energy Center LLC. Based on reported annual generation of 3,534 GWh, it can supply roughly 1.0 million homes. It ranks #693 of 10,938 United States of America power plants by installed capacity. Commissioned in 2002, it is around 24 years old — relatively modern. Its annual emissions of 1,630,421 t CO₂/yr (US EPA GHGRP) are equivalent to about 380k 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).

944Source-backed capacity
1HRSG unit(s)
3,534GWh reported / yr
1,009,600homes powered
1,630,421t CO₂ / yr (US EPA GHGRP)
2002commissioned (~24 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055333.

Data status

Known data

FacilityDelta Energy Center WRI
CountryUnited States of America · California WRI
Coordinates38.0169, -121.8439 WRI
FuelGas WRI
MW installed capacity944 MW WRI source record; scope not independently normalised
OwnerDelta Energy Center LLC WRI
Commissioned2002 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr3,534 GWh/yr WRI
CO₂ emissions1,630,421 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#693 of 10938 calculated
Fuel-specific rank in country#236 of 2165 calculated
Capacity vs country/fuel peers7.78× · 121 MW median · 2165 peers calculated
Homes-powered equivalent1,009,600 calculated from reported generation
Climate16.0°C · HDD 1,269 derived from coordinates
Environmental severityC3 · 34/100 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 L100000401845); fuel: WRI source-record fuel

In context: how this plant compares

At 944 MW, Delta Energy Center 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.

1,630,421 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

380kpassenger cars driven for a year
213khomes' yearly energy use
27 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: 5,653 GWh20132014: 5,187 GWh20142015: 4,633 GWh20152016: 3,422 GWh20162017: 476 GWh20172018: 3,082 GWh20182019: 3,534 GWh20196k GWh

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

Owner

Operated by Delta Energy Center LLC.

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-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 38.0°N — which shapes how much energy it can produce and how its output varies through the year.

16.0°Cannual mean temp
1,269heating degree-days (base 18°C)
537cooling degree-days (base 18°C)
107 melevation

Monthly mean temperature

J: 8 °CJF: 11 °CFM: 12 °CMA: 15 °CAM: 18 °CMJ: 21 °CJJ: 23 °CJA: 23 °CAS: 22 °CSO: 18 °CON: 12 °CND: 8 °CD23 °C

Heating degree-days here run 48% 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: 30/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~1% 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
34/100environmental-severity index
15.2°Cseasonal temperature swing
80 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 #236 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 38.0169, -121.8439 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Delta Energy Center?

Delta Energy Center is a 944 MW source-record gas power plant in California, United States of America, commissioned in 2002.

How much electricity does Delta Energy Center generate?

Delta Energy Center generates about 3,534 GWh of electricity per year.

How many homes can Delta Energy Center power?

Its output is enough to supply roughly 1,009,600 homes.

Who operates Delta Energy Center?

Delta Energy Center is operated by Delta Energy Center LLC.

How much CO₂ does Delta Energy Center emit?

Delta Energy Center has measured emissions of about 1,630,421 tonnes of CO₂ per year (US EPA GHGRP).

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