Suwannee River

Gas power plant in Florida, United States of America. Approximate location 30.3764, -83.1806.

GasFloridaUnited States of AmericaOCGT

Suwannee River is a 198 MW gas power station in Florida, United States of America. It is operated by Duke Energy Florida LLC. Based on reported annual generation of 64 GWh, it can supply roughly 18k homes. It ranks #2074 of 10,938 United States of America power plants by installed capacity. Commissioned in 1980, it is around 46 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).

198Source-backed capacity
64GWh reported / yr
18,400homes powered
1980commissioned (~46 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000638.

Data status

Known data

FacilitySuwannee River WRI
CountryUnited States of America · Florida WRI
Coordinates30.3764, -83.1806 WRI
FuelGas WRI
MW installed capacity198 MW WRI source record; scope not independently normalised
OwnerDuke Energy Florida LLC WRI
Commissioned1980 WRI
TechnologyOCGT WRI
GWh reported / yr64 GWh/yr WRI

Calculated from dataset

CO₂ emissions25,760 t CO₂/yr calculated
Capacity rank in country#2074 of 10938 calculated
Fuel-specific rank in country#921 of 2165 calculated
Capacity vs country/fuel peers1.63× · 121 MW median · 2165 peers calculated
Homes-powered equivalent18,400 calculated from reported generation
Climate19.9°C · HDD 630 derived from coordinates
Environmental severityC4 · 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 L100000401872); fuel: WRI source-record fuel

In context: how this plant compares

At 198 MW, Suwannee River is well above the median gas plant in United States of America (121 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.

Reported generation trend

2013: 532 GWh20132014: 525 GWh20142015: 524 GWh20152016: 475 GWh20162017: 34 GWh20172018: 43 GWh20182019: 64 GWh2019532 GWh

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

Owner

Operated by Duke Energy Florida LLC. 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 humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 30.4°N — which shapes how much energy it can produce and how its output varies through the year.

19.9°Cannual mean temp
630heating degree-days (base 18°C)
1,335cooling degree-days (base 18°C)
33 melevation

Monthly mean temperature

J: 11 °CJF: 13 °CFM: 16 °CMA: 19 °CAM: 23 °CMJ: 26 °CJJ: 27 °CJA: 27 °CAS: 26 °CSO: 21 °CON: 16 °CND: 12 °CD27 °C

Heating degree-days here run 74% 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: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~3% 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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
43/100environmental-severity index
16.3°Cseasonal temperature swing
94 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 #921 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 30.3764, -83.1806 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Suwannee River?

Suwannee River is a 198 MW source-record gas power plant in Florida, United States of America, commissioned in 1980.

How much electricity does Suwannee River generate?

Suwannee River generates about 64 GWh of electricity per year.

How many homes can Suwannee River power?

Its output is enough to supply roughly 18,400 homes.

Who operates Suwannee River?

Suwannee River is operated by Duke Energy Florida LLC.

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