S O Purdom

🔥 Natural GasElectric Utility270 MW capacity

49th largest plant in Florida · 1156th nationally

S O Purdom is a natural gas power plant in Florida with a nameplate capacity of 270 MW. It generates roughly 1.4M MWh per year — enough to power about 132,833 average U.S. homes.

Its capacity factor of 59% puts it in the middle range — running steadily but not full-time. At 932 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%59%
Mid-merit — steady but not full-time

Month by month in 2024

100% capacity0Jan: 129.9k MWh (65% of capacity)JFeb: 120.1k MWh (66% of capacity)FMar: 129.3k MWh (64% of capacity)MApr: 77.1k MWh (40% of capacity)AMay: 110.8k MWh (55% of capacity)MJun: 124.2k MWh (64% of capacity)JJul: 123.2k MWh (61% of capacity)JAug: 130.7k MWh (65% of capacity)ASep: 111.1k MWh (57% of capacity)SOct: 99.9k MWh (50% of capacity)ONov: 30 MWh (0% of capacity)NDec: 50.0k MWh (25% of capacity)D

Ghost bars are each month's theoretical maximum (270 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.

Capacity270 MWnameplate
Annual Generation1.4M MWhEPA eGRID
Capacity Factor59%of theoretical max
Annual CO₂650.1kmetric tons

Location

Plant NameS O Purdom
OperatorCity Of Tallahassee - (Fl)
CitySt Marks
CountyWakulla County
StateFlorida
ZIP32355
Coordinates30.16230, -84.20067

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasSolar

Generators (5)

IDTechnologyFuelCapacityStatusOnline
8Natural Gas Fired Combined CycleNatural Gas180 MWOperating2000
9Natural Gas Fired Combined CycleNatural Gas90.1 MWOperating2000
7Natural Gas Steam TurbineNatural Gas50.0 MWRetired1966
GT1Natural Gas Fired Combustion TurbineNatural Gas15.0 MWRetired1963
GT2Natural Gas Fired Combustion TurbineNatural Gas15.0 MWRetired1964

Emissions (annual)

CO₂650.1k metric tons
SO₂3 metric tons
NOₓ150 metric tons
CO₂ Rate932 lb/MWh
U.S. grid average800 lb/MWhNatural gas combined-cycle average900 lb/MWhThis plant932 lb/MWhCoal plant average2,100 lb/MWh

Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.

Grid context

NERC RegionSERC
Balancing AuthorityCity Of Tallahassee

About Natural Gas plants

Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.

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