American Falls Solar II
Power County, Idaho · EIA plant ID 60012 · Operator: American Falls Solar II, LLC
Nameplate20MWSummer 20 MW
Generators1in service
Net generation45GWh12 mo to Aug 2026
Capacity factor25%solar units, summer MW
Heat rate—thermal plants only
First online2017
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), solar 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) |
|---|---|---|---|
| 2017 | 35 | 23.8% | — |
| 2018 | 43.7 | 25.0% | — |
| 2019 | 44.1 | 25.2% | — |
| 2020 | 46.5 | 26.5% | — |
| 2021 | 46.8 | 26.7% | — |
| 2022 | 43.1 | 24.6% | — |
| 2023 | 41.4 | 23.6% | — |
| 2024 | 43.3 | 24.7% | — |
| 2025 | 45.4 | 25.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| IPAF2 | Solar Photovoltaic | PV | 20 | 20 | Mar 2017 | Operating | — | coming soon |
Owner / operator
Operator: American Falls Solar II, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| American Falls Solar II, LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| American Falls Solar | 20 MW | 0 km |
| Power County Wind Park North | 23 MW | 9.5 km |
| American Falls | 92 MW | 11.4 km |
| Power County Wind Park South | 23 MW | 13.4 km |
| Simplot Leasing Don Plant | 16 MW | 20.4 km |
| Rockland Wind Farm | 79 MW | 20.6 km |