Green Power 2 — Plant Summary
- EIA Plant ID
- 55470
- Capacity
- 861 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle
- Status
- Operating
- Location
- Galveston, TX
- Operating Since
- 2003
- Generators
- 5
- Operator
- South Houston Green Power LLC
- Parent Company
- Marathon Petroleum
- Annual Generation
- 3,861,166 MWh
- Capacity Factor
- 51.2%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Green Power 2
OperatingNatural Gas
Ranked #36 of 313 Natural Gas plants in TX#216 of 2009 nationally
861 MW Natural Gas operating in Galveston, TX — Electric Reliability Council of Texas, Inc.
EIAWD
861 MW
Nameplate Capacity
5
Generators
units
Natural Gas Fired Combined Cycle
Technology
2003
Operating Since
Location
Coordinates
29.3781, -94.9328
County
Galveston, TX
Nearby Plants
- Texas City Power PlantNatural Gas450 MW · 1.1 km
- Texas City Plant Union CarbidePurchased Steam45 MW · 1.4 km
- HeightsBESS9.9 MW · 1.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | South Houston Green Power LLC | Marathon Petroleum | — |
| Owner(s) | Marathon Petroleum Company LP | Marathon Petroleum | — |
| Status | Operating | — | — |
Ownership Chain
About
Green Power 2 is an 861 MW natural gas-fired combined cycle power plant located in Galveston County, Texas. The plant began operating in 2003 and consists of 5 generators. It is owned by Marathon Petroleum and operated by South Houston Green Power LLC. The plant is within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority and the TRE NERC region.
In the most recent year of data, Green Power 2 generated 3,861,166 MWh of electricity, achieving a capacity factor of 51.2%. Green Power 2 ranks as the 37th largest power plant in Texas out of 144 plants in the state, and 220th nationally out of 945 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Industrial
Sector
Industrial CHP
Generation
406.5K MWh
Latest Month
3.9M MWh
Annual Generation
51.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
ERCOT
LMP Node
AMOCOOIL
Pricing Hub
HB_HOUSTON
Node Source
EIA-860 direct report
News & Articles (10)Beta
Industry·partnership
Sunrun + NRG launch a virtual power plant to ease Texas power demand
NRG and Sunrun are building a huge Texas virtual power plant using home batteries to help ERCOT meet surging demand.
Sunrun (developer)NRG (developer)
Electrek·3 months ago
Regulatory·state puc
Entergy Texas receives PUCT approval for two power plants to support Southeast Texas growth
The Public Utility Commission of Texas approved Entergy Texas' proposal to build two highly efficient natural gas power plants that will...
Entergy Texas (operator)Public Utility Commission of Texas (regulator)
Entergy·6 months ago
Industry·corporate
Liebreich: The Pragmatic Climate Reset – Part II: A Provocation
As the debate on transition deepens, Michael Liebreich details how a pragmatic climate and energy reset might unfold.
Michael Liebreich (other)
BloombergNEF·6 months ago
Industry·corporate
Inside the AI race: can data centres ever truly be green?
Energy demand for training machines and running apps is driving a surge of investment into fossil fuels.
Financial Times·7 months ago
Last updated 2026-03-14
View all 10 articles