Home / North America / United States of America / Lost Hills Cogeneration Plant

Lost Hills Cogeneration Plant — United States of America

Gas power plant in California, United States of America. Approximate location 35.6661, -119.7669.

GasCaliforniaUnited States of America

Lost Hills Cogeneration Plant is a 10.5 MW gas power plant in California, United States of America. It is operated by AERA Energy LLC. Based on reported annual generation of 44 GWh, it can supply roughly 12k homes. It ranks #5554 of 10,884 United States of America power plants by installed capacity. Commissioned in 1985, it is around 41 years old — long-established. 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).

10.5MW installed capacity
44GWh reported / yr
12,457homes powered
1985commissioned (~41 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052077.

Data status

Known data

FacilityLost Hills Cogeneration Plant WRI
CountryUnited States of America · California WRI
Coordinates35.6661, -119.7669 WRI
FuelGas WRI
MW installed capacity10.5 MW WRI GPPD; source record
OwnerAERA Energy LLC WRI
Commissioned1985 WRI
GWh reported / yr44 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions17,440 t CO₂·a⁻¹ calculated
Capacity rank in country#5554 / 10884 calculated
Fuel-specific rank in country#1769 / 2165 calculated
Capacity vs country/fuel peers0.09× · 121.2 MW · n=2165 calculated
Homes-powered equivalent12,457 calculated from reported generation
Climate17.7°C · HDD 1,144 derived from coordinates
Environmental severityC1 · 41/100 derived from coordinates

Not available

TechnologyNot available not in dataset

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

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: WRI GPPD; fuel: WRI GPPD

In context: how this plant compares

At 10.5 MW, Lost Hills Cogeneration Plant is below the median gas plant in United States of America (121.2 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.

Key facts

Load factor
47%, from 44 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
32 GWh in 2013 and 44 GWh in 2019 (+34%)
Highest and lowest year
2014: 44 GWh; 2013: 32 GWh
Share of United States of America gas capacity
less than 0.1% of 789,950 MW across 2,165 plants in this dataset
Age among peers
384 of 1,973 dated gas plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

2013: 32 GWh20132014: 44 GWh20142015: 38 GWh20152016: 36 GWh20162017: 39 GWh20172018: 37 GWh20182019: 44 GWh201944 GWh

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

Owner

Operated by AERA Energy 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 cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 35.7°N — which shapes how much energy it can produce and how its output varies through the year.

17.7°Cannual mean temp
1,144heating degree-days (base 18°C)
1,042cooling degree-days (base 18°C)
144 melevation

Monthly mean temperature

J: 8 °CJF: 11 °CFM: 14 °CMA: 16 °CAM: 20 °CMJ: 25 °CJJ: 28 °CJA: 27 °CAS: 24 °CSO: 19 °CON: 12 °CND: 8 °CD28 °C

Heating degree-days here run 53% 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: 28/100 — 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

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)
41/100environmental-severity index
19.4°Cseasonal temperature swing
126 kmdistance to coast

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 #1769 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 35.6661, -119.7669 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Lost Hills Cogeneration Plant?

Lost Hills Cogeneration Plant is a 10.5 MW gas power plant in California, United States of America, commissioned in 1985.

How much electricity does Lost Hills Cogeneration Plant generate?

Lost Hills Cogeneration Plant generates about 44 GWh of electricity per year.

Who operates Lost Hills Cogeneration Plant?

Lost Hills Cogeneration Plant is operated by AERA Energy LLC.

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