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- Combustion
- Storage
- In development
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Storage
- In development
- Under construction
- Operating
Green Power 2: location and 5 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Green Power 2
Power plant · Gas, combined cycle
Key facts
Power plant · Gas, combined cycleran 51% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2003
- Net generation, 2025
- 3,861,166 MWh
- Grid
- 138 kV to Texas-New Mexico Power Co (ERCO)
- Location
- Galveston County, Texas
- Operated by
- South Houston Green Power LLC
Output
- Gas
Details
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- Technology
- Gas, combined cycle source: “Natural Gas Fired Combined Cycle”
- Age
- 23 years since 2003
- Unused energy
- 3,681 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 12,112 Btu/kWh 2025
All 9 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| Grid |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Eia status |
|
| Fuel burned (MMBtu), 2025 | 46,766,849 |
| Capacity factor, 2025 | 0.512 |
| Heat rate (Btu/kWh), 2025 | 12,112.1 |
| Net generation (MWh), 2025 | 3,861,166 |
| Balancing authority code | ERCO |
Ownership
4 companies16| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CORP | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
| Marathon Petroleum Company LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| Marathon Petroleum Company LP | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| MARATHON PETROLEUM CO LP | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
| South Houston Green Power LLC | Operator | EIA-860M |
Timeline
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · GEM · EIA · EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT) · EIA-860M Preliminary Monthly Electric Generator Inventory
Sources
- EIA-860M
- GEMGlobal Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
- EIA-860M Preliminary Monthly Electric Generator Inventory
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Zeya Under construction | Storage | 1.2 mi | 255.3 |
| Red Egret Under construction | Storage | 5.3 mi | 310.6 |
| Vertus Energy Storage Plant Studied | Storage | 6.5 mi | 204.9 |
| Hidden Lakes Postponed | Storage | 9.9 mi | 9.9 |
| Berkman Storage Postponed | Storage | 12.3 mi | 100 |