Intercession City

Gas power plant in Florida, United States of America. Approximate location 28.2628, -81.5486.

GasFloridaUnited States of AmericaOCGTCO₂ measured

Intercession City is a 1,199 MW gas power station in Florida, United States of America. It is operated by Duke Energy Florida LLC. Based on reported annual generation of 360 GWh, it can supply roughly 103k homes. It ranks #529 of 10,938 United States of America power plants by installed capacity. Commissioned in 1990, it is around 36 years old — long-established. Its annual emissions of 211,060 t CO₂/yr (US EPA GHGRP) are equivalent to about 49k 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).

1,199Source-backed capacity
360GWh reported / yr
102,914homes powered
211,060t CO₂ / yr (US EPA GHGRP)
1990commissioned (~36 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0008049.

Data status

Known data

FacilityIntercession City WRI
CountryUnited States of America · Florida WRI
Coordinates28.2628, -81.5486 WRI
FuelGas WRI
MW installed capacity1,199 MW WRI source record; scope not independently normalised
OwnerDuke Energy Florida LLC WRI
Commissioned1990 WRI
TechnologyOCGT WRI
GWh reported / yr360 GWh/yr WRI
CO₂ emissions211,060 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#529 of 10938 calculated
Fuel-specific rank in country#155 of 2165 calculated
Capacity vs country/fuel peers9.89× · 121 MW median · 2165 peers calculated
Homes-powered equivalent102,914 calculated from reported generation
Climate22.4°C · HDD 134 derived from coordinates
Environmental severityC4 · 42/100 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 operating-unit sum (location L100000401869); fuel: WRI source-record fuel

In context: how this plant compares

At 1,199 MW, Intercession City 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.

211,060 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

49kpassenger cars driven for a year
28khomes' yearly energy use
3.5 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: 186 GWh20132014: 260 GWh20142015: 297 GWh20152016: 386 GWh20162017: 301 GWh20172018: 544 GWh20182019: 360 GWh2019544 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 28.3°N — which shapes how much energy it can produce and how its output varies through the year.

22.4°Cannual mean temp
134heating degree-days (base 18°C)
1,736cooling degree-days (base 18°C)
23 melevation

Monthly mean temperature

J: 16 °CJF: 17 °CFM: 19 °CMA: 22 °CAM: 25 °CMJ: 27 °CJJ: 28 °CJA: 28 °CAS: 27 °CSO: 24 °CON: 20 °CND: 17 °CD28 °C

Heating degree-days here run 95% 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: 16/100 — 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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
42/100environmental-severity index
11.9°Cseasonal temperature swing
62 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 #155 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 28.2628, -81.5486 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Intercession City?

Intercession City is a 1,199 MW source-record gas power plant in Florida, United States of America, commissioned in 1990.

How much electricity does Intercession City generate?

Intercession City generates about 360 GWh of electricity per year.

How many homes can Intercession City power?

Its output is enough to supply roughly 102,914 homes.

Who operates Intercession City?

Intercession City is operated by Duke Energy Florida LLC.

How much CO₂ does Intercession City emit?

Intercession City has measured emissions of about 211,060 tonnes of CO₂ per year (US EPA GHGRP).

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