Horseshoe Lake — United States of America

Gas power plant in Oklahoma, United States of America. Approximate location 35.5087, -97.1797.

GasOklahomaUnited States of AmericaOCGT

Horseshoe Lake is a 728 MW gas power station in Oklahoma, United States of America. It is operated by Oklahoma Gas & Electric Co. Based on reported annual generation of 1,038 GWh, it can supply roughly 296k homes. It ranks #858 of 10,884 United States of America power plants by installed capacity. Commissioned in 1969, it is around 57 years old — an older, legacy facility. 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).

728MW installed capacity
1,038GWh reported / yr
296,457homes powered
1969commissioned (~57 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002951.

Data status

Known data

FacilityHorseshoe Lake WRI
CountryUnited States of America · Oklahoma WRI
Coordinates35.5087, -97.1797 WRI
FuelGas WRI
MW installed capacity728 MW GEM · 2026 · L100000402162; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerOklahoma Gas & Electric Co WRI
Commissioned1969 WRI
TechnologyOCGT WRI
GWh reported / yr1,038 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions415,040 t CO₂·a⁻¹ calculated
Capacity rank in country#858 / 10884 calculated
Fuel-specific rank in country#371 / 2165 calculated
Capacity vs country/fuel peers6.01× · 121.2 MW · n=2165 calculated
Homes-powered equivalent296,457 calculated from reported generation
Climate15.7°C · HDD 1,815 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

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

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000402162; fuel: WRI GPPD

In context: how this plant compares

At 728 MW, Horseshoe Lake is well above the median gas plant in United States of America (121.2 MW). Technically it is described as OCGT. 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
16%, from 1,038 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
746 GWh in 2013 and 1,038 GWh in 2019 (+39%)
Highest and lowest year
2019: 1,038 GWh; 2013: 746 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
133 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: 746 GWh20132014: 867 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 1,038 GWh20191k GWh

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

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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 35.5°N — which shapes how much energy it can produce and how its output varies through the year.

15.7°Cannual mean temp
1,815heating degree-days (base 18°C)
983cooling degree-days (base 18°C)
336 melevation

Monthly mean temperature

J: 3 °CJF: 6 °CFM: 11 °CMA: 16 °CAM: 20 °CMJ: 25 °CJJ: 28 °CJA: 27 °CAS: 23 °CSO: 17 °CON: 10 °CND: 5 °CD28 °C

Heating degree-days here run 26% 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: 40/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
37/100environmental-severity index
24.9°Cseasonal temperature swing
696 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 #371 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 35.5087, -97.1797 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Horseshoe Lake?

Horseshoe Lake is a 728 MW gas power plant in Oklahoma, United States of America, commissioned in 1969.

How much electricity does Horseshoe Lake generate?

Horseshoe Lake generates about 1,038 GWh of electricity per year.

Who operates Horseshoe Lake?

Horseshoe Lake is operated by Oklahoma Gas & Electric Co.

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