Rock Island Generation ProjectPlanned
Colorado County, Texas · EIA plant ID 69760 · Operator: Kerrville Public Utility Board Public Facility Corp
122 MW planned (Natural Gas Internal Combustion Engine), first expected Sep 2027 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
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.
Heat rate applies to fuel-burning (thermal) units only.
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 |
|---|---|---|---|---|---|---|---|---|
| RIG1 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
| RIG2 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
| RIG3 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
| RIG4 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
| RIG5 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
| RIG6 | Natural Gas Internal Combustion Engine | IC | 20.3 | 19.9 | planned Sep 2027 | Planned | — | coming soon |
Owner / operator
Operator: Kerrville Public Utility Board Public Facility Corp. 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.
| Sky Global Power One | 51 MW | 0.1 km |
| Colorado Clean Energy Center (BESS) | — | 11.1 km |
| Columbus Clean Energy Center (BESS) | — | 14.3 km |
| Clear Fork Creek Solar and BESS SLF | — | 39.2 km |
| E-Volve Energy Holdings LLC | retired | 42.1 km |
| Sunrose Renewable Energy | — | 42.4 km |