Turnbull Hydro
Teton County, Montana · EIA plant ID 57690 · Operator: Turnbull Hydro LLC
Nameplate13MWSummer 13 MW
Generators2in service
Net generation18GWh12 mo to Dec 2025
Capacity factor16%hydro units, summer MW
Heat rate—thermal plants only
First online2011
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), hydro 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) |
|---|---|---|---|
| 2011 | 22.3 | 35.4% | — |
| 2012 | 33 | 28.9% | — |
| 2013 | 29.1 | 25.5% | — |
| 2014 | 28.4 | 24.9% | — |
| 2015 | 25.1 | 22.1% | — |
| 2016 | 24.8 | 21.7% | — |
| 2017 | 29.3 | 25.7% | — |
| 2018 | 31.8 | 27.9% | — |
| 2019 | 25.8 | 22.7% | — |
| 2020 | 31.1 | 27.2% | — |
| 2021 | 24.4 | 21.4% | — |
| 2022 | 29.7 | 26.1% | — |
| 2023 | 22.9 | 20.1% | — |
| 2024 | 19.2 | 16.8% | — |
| 2025 | 18 | 15.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 5.3 | 5.3 | Jul 2011 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 7.7 | 7.7 | Jun 2011 | Operating | — | coming soon |
Owner / operator
Operator: Turnbull Hydro LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Turnbull Hydro LLC | 100.0% | 13 MW |
Nearby plants
Within 80 km.
| Fairfield Wind | 10 MW | 16.4 km |
| Greenfield Wind - MT | 25 MW | 16.5 km |
| Horseshoe Bend Wind Park | 10 MW | 50.8 km |
| Black Eagle | 27 MW | 63.4 km |
| Black Eagle Solar, LLC | 3 MW | 63.6 km |
| Rainbow (MT) | 59 MW | 67.4 km |