Colorado Bend II
Wharton County, Texas · EIA plant ID 60122 · Operator: Exelon Power
Nameplate1,230MWSummer 1,143 MW
Generators3in service
Net generation6,694GWh12 mo to Aug 2026
Capacity factor67%gas/coal/oil units, summer MW
Heat rate6,697Btu/kWhfossil units, electric fuel, HHV
First online2017Runs 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
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.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2017 | 3,120.4 | 55.9% | 6,600 |
| 2018 | 4,511 | 47.3% | 7,036 |
| 2019 | 6,104.5 | 61.1% | 6,836 |
| 2020 | 5,598.5 | 55.8% | 6,895 |
| 2021 | 6,171 | 61.7% | 6,808 |
| 2022 | 6,437.3 | 64.3% | 6,746 |
| 2023 | 7,844.8 | 78.4% | 6,818 |
| 2024 | 6,978.6 | 69.5% | 6,829 |
| 2025 | 6,072.5 | 60.7% | 6,759 |
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 |
|---|---|---|---|---|---|---|---|---|
| CT7 | Natural Gas Fired Combined Cycle | CT | 360.9 | 329.3 | Jun 2017 | Operating | — | coming soon |
| CT8 | Natural Gas Fired Combined Cycle | CT | 360.9 | 335 | Jun 2017 | Operating | — | coming soon |
| STG9 | Natural Gas Fired Combined Cycle | CA | 508.5 | 478.4 | Jun 2017 | Operating | — | coming soon |
Owner / operator
Operator: Exelon Power. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Exelon Power | 100.0% | 1,230 MW |
Nearby plants
Within 80 km.
| Colorado Bend Energy Center | 654 MW | 0.3 km |
| I-Eye ESS | 10 MW | 4.9 km |
| OCI SunRoper | — | 7.6 km |
| Lane City Wind | 203 MW | 9.5 km |
| Cascade Solar (TX) | 10 MW | 10.2 km |
| GulfStar Power, LLC | 300 MW | 14.5 km |