Orange County Advanced Power StationUnder construction
Orange County, Texas · EIA plant ID 66621 · Operator: Entergy Texas Inc.
1,306 MW under construction (Natural Gas Fired Combined Cycle), first expected Oct 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 1,306 MW building
Net generation53GWh12 mo to Aug 2026
Capacity factor—no 923 generation in the last 12 months
Heat rate10,635Btu/kWhfossil units, electric fuel, HHV
First online—
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
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1A | Natural Gas Fired Combined Cycle | CT | 453 | 396.6 | planned Oct 2026 | Under construction | — | coming soon |
| 1B | Natural Gas Fired Combined Cycle | CT | 453 | 396.6 | planned Oct 2026 | Under construction | — | coming soon |
| 1C | Natural Gas Fired Combined Cycle | CA | 400 | 365 | planned Oct 2026 | Under construction | — | coming soon |
Owner / operator
Operator: Entergy Texas Inc.. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Sabine | 1,812 MW | 0.7 km |
| Port Arthur Texas Refinery | 38 MW | 7 km |
| NAFTA Region Olefins Complex Cogen Fac | 83 MW | 8 km |
| JCO Oxides Olefins Plant | 74 MW | 8.9 km |
| Port Neches Plant | retired | 9.4 km |
| Sabine Cogen | retired | 9.9 km |