Union Carbide Seadrift Cogen

🔥 Natural GasIndustrial CHP168 MW capacity

349th largest plant in Texas · 1759th nationally

Union Carbide Seadrift Cogen is a natural gas power plant in Texas with a nameplate capacity of 168 MW. It generates roughly 574.6k MWh per year — enough to power about 54,726 average U.S. homes.

Its capacity factor of 39% reflects intermittent or peaking operation. At 803 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%39%
Peaking — intermittent or backup

Month by month in 2024

100% capacity0Jan: 5.8k MWh (5% of capacity)JFeb: 8.0k MWh (7% of capacity)FMar: 8.3k MWh (7% of capacity)MApr: 7.2k MWh (6% of capacity)AMay: 8.2k MWh (7% of capacity)MJun: 7.0k MWh (6% of capacity)JJul: 7.0k MWh (6% of capacity)JAug: 8.4k MWh (7% of capacity)ASep: 12.0k MWh (10% of capacity)SOct: 12.6k MWh (10% of capacity)ONov: 10.7k MWh (9% of capacity)NDec: 8.2k MWh (7% of capacity)D

Ghost bars are each month's theoretical maximum (168 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.

Capacity168 MWnameplate
Annual Generation574.6k MWhEPA eGRID
Capacity Factor39%of theoretical max
Annual CO₂230.8kmetric tons

Location

Plant NameUnion Carbide Seadrift Cogen
OperatorUnion Carbide Corp-Seadrift
CitySeadrift
CountyCalhoun County
StateTexas
ZIP77983
Coordinates28.51050, -96.77060

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

Natural GasOilSolar

Generators (8)

IDTechnologyFuelCapacityStatusOnline
GE11Natural Gas Fired Combustion TurbineNatural Gas35.0 MWOperating2000
GEN6Natural Gas Fired Combustion TurbineNatural Gas35.0 MWOperating1987
GEN8Natural Gas Fired Combustion TurbineNatural Gas35.0 MWOperating1987
GE10Natural Gas Steam TurbineNatural Gas15.0 MWOperating1964
GEN5Natural Gas Steam TurbineNatural Gas15.0 MWOperating1987
GEN9Natural Gas Steam TurbineNatural Gas15.0 MWOperating1987
IGTNatural Gas Fired Combustion TurbineNatural Gas12.0 MWOperating1969
GEN7Natural Gas Steam TurbineNatural Gas6.0 MWOut of Service1987

Emissions (annual)

CO₂230.8k metric tons
SO₂6 metric tons
NOₓ586 metric tons
CO₂ Rate803 lb/MWh
U.S. grid average800 lb/MWhThis plant803 lb/MWhNatural gas combined-cycle average900 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 RegionTRE
Balancing AuthorityElectric Reliability Council Of Texas, Inc.

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.

Other plants in Calhoun County

View all plants in Calhoun County →

Explore more