Query
Power Station 4
Type
Entity Briefing
Entity
Power Station 4
Generated
2026-10-18T02:47:10.556Z

Briefing on Power Station 4

Entity Briefing
Generated Oct 18, 2026·Dataset freshness not reported
191 MW
Capacity
Operating
Current status
1986
Operating since
3
Generators
23.8%
Capacity factor
401 GWh
Annual generation
Briefing/plantOperating

Power Station 4 is a 191 MW Natural Gas Fired Combined Cycle asset in ERCOT (Texas), currently Operating.

Power Station 4 is reported in Texas since 1986 under Marathon Petroleum. Available operating and financial measures include 23.8% capacity factor and 401 GWh annual generation; $965/kW reported CapEx.

Location
Galveston, Texas
Technology
Natural Gas Fired Combined Cycle
Owner / parent
Marathon Petroleum
Operator
South Houston Green Power LLC
Grid
ERCOT (Texas)
Plant ID
52132

What stands out

1

Power Station 4 is a 191 MW Natural Gas Fired Combined Cycle asset in Texas with status Operating.

2

Latest annual operating measures report 23.8% capacity factor and 401 GWh annual generation.

3

Available financial measures include $965/kW CapEx.

4

Latest linked story: “Top 10 greenhouse gas polluters in Texas” (Environment America, 2024-09-24).

Market and operating context

ISO / market
ERCOT (Texas)
Balancing authority
Electric Reliability Council of Texas, Inc.
NERC region
TRE
State rank
#128 of 325
National rank
#785 of 2,025

Why it matters

For this asset in ERCOT (Texas), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.