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Freeport Energy

Brazoria County, Texas · EIA plant ID 52120 · Operator: Olin Blue Cube Operations
Natural gasNatural Gas Fired Combined CycleERCOTBA: ERCO

×75 MW natural gas retired since 2020 (latest Jun 2023)

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Nameplate603MWSummer 458 MW
Generators6in service
Net generation1,882GWh12 mo to Aug 2026
Capacity factor47%gas/coal/oil units, summer MW
Heat rate5,962Btu/kWhfossil units, electric fuel, HHV
First online1982Runs as baseload

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
0200400GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%25%50%75%2005201020152020202546.9% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
5,0005,5006,0006,500200520102015202020255,962 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
20015,968.9——
20025,708.9——
20035,520.757.9%6,761
20045,261.454.1%5,617
20055,085.652.4%5,617
20064,204.843.3%5,617
20074,698.567.5%5,617
20084,520.464.7%5,617
20093,795.854.5%5,617
20104,15559.7%5,617
20112,726.839.1%5,617
20122,846.660.9%5,617
20133,025.864.9%5,617
20142,608.456.0%6,073
20152,797.760.0%6,453
20163,095.368.1%5,954
20172,537.456.0%5,952
20183,97387.7%5,954
20193,17870.1%5,953
20203,325.673.2%5,940
20213,000.366.2%5,954
20222,321.252.1%5,951
20232,279.253.9%5,956
20241,901.547.3%5,962
20251,71042.6%5,962

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
G-61Natural Gas Fired Combined CycleCT94.568.3Oct 1982Operating—coming soon
G-63Natural Gas Fired Combined CycleCT94.568.3Aug 1982Operating—coming soon
G-64Natural Gas Fired Combined CycleCA64.835Sep 1982Operating (Out of service)—coming soon
G-65Natural Gas Fired Combined CycleCA111.395.2Feb 1984Operating—coming soon
G-66Natural Gas Fired Combined CycleCT11995.6Dec 1983Operating (Out of service)—coming soon
G-67Natural Gas Fired Combined CycleCT11995.6Mar 1984Operating—coming soon
G-31Natural Gas Fired Combined CycleCA5050Nov 1952Retired Jan 2003—coming soon
G-32Natural Gas Fired Combined CycleCA5050Dec 1952Retired Jan 1995—coming soon
G-33Natural Gas Fired Combined CycleCA4949Dec 1953Retired Jan 2007—coming soon
G-35Natural Gas Fired Combined CycleCT11995.6Feb 1983Retired Nov 2009—coming soon
G-36Natural Gas Fired Combined CycleCT11999Feb 1983Retired Oct 2009—coming soon
G-37Natural Gas Fired Combustion TurbineGT7559.2Apr 1978Retired Jun 2023—coming soon
G-41Natural Gas Fired Combined CycleCA5050May 1958Retired Jun 2000—coming soon
G-42Natural Gas Fired Combined CycleCA5046Mar 1959Retired Feb 2003—coming soon
G-45Natural Gas Fired Combined CycleCT11992Oct 1983Retired Nov 2003—coming soon
G-62Natural Gas Fired Combined CycleCT94.568.3Sep 1982Retired Aug 2011—coming soon

Owner / operator

Operator: Olin Blue Cube Operations. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Olin Blue Cube Operations100.0%603 MW

Nearby plants

Within 80 km.
Freeport Energy Center260 MW1.2 km
BASF Freeport Works93 MW1.8 km
Praxair1 MW2.4 km
Oyster Creek Unit VIII498 MW6.5 km
Freeport LP Pretreatment Facility87 MW9.9 km
Brazoria Solar I—16.8 km