Rock Creek II
Twin Falls County, Idaho · EIA plant ID 10809 · Operator: Hydroland Omega LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online1990
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.
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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 4.9 | 29.5% | — |
| 2002 | 5.3 | 33.4% | — |
| 2003 | 5 | 31.4% | — |
| 2004 | 2 | 12.9% | — |
| 2005 | 6.3 | 39.8% | — |
| 2006 | 8.8 | 55.2% | — |
| 2007 | 5.5 | 34.8% | — |
| 2008 | 6.5 | 41.0% | — |
| 2009 | 7.6 | 48.3% | — |
| 2010 | 7.6 | 48.4% | — |
| 2011 | 9.6 | 60.7% | — |
| 2012 | 6.7 | 42.2% | — |
| 2013 | 5.5 | 35.1% | — |
| 2014 | 6.8 | 43.3% | — |
| 2015 | 6.3 | 40.0% | — |
| 2016 | 7.3 | 46.1% | — |
| 2017 | 8.9 | 56.2% | — |
| 2018 | 4.7 | 30.0% | — |
| 2019 | 1 | 6.5% | — |
| 2020 | 4.7 | 29.9% | — |
| 2021 | 2.3 | 14.9% | — |
| 2022 | 3.3 | 20.9% | — |
| 2023 | 5.8 | 36.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 1.9 | 1.8 | Aug 1990 | Operating | — | coming soon |
Owner / operator
Operator: Hydroland Omega LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Hydroland Omega LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Rock Creek I | 2 MW | 1.4 km |
| Crystal Springs | 2 MW | 2.5 km |
| Marco Ranch | 1 MW | 2.8 km |
| Filer BESS | 2 MW | 7.5 km |
| Little Mac Project | 2 MW | 10.7 km |
| Shoshone Falls | 15 MW | 10.8 km |