Amalgamated Sugar LLC Nampa
Canyon County, Idaho · EIA plant ID 54690 · Operator: Amalgamated Sugar Co-Nampa
Nameplate8MWSummer 8 MW
Generators2in service
Net generation47GWh12 mo to Dec 2025
Capacity factor65%gas/coal/oil units, summer MW
Heat rate4,549Btu/kWhfossil units, electric fuel, HHV
First online1948Runs as baseload
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) |
|---|---|---|---|
| 2001 | 0 | 0.0% | — |
| 2002 | 49.7 | 65.2% | — |
| 2004 | 54.2 | 70.9% | 4,869 |
| 2005 | 47.9 | 62.8% | 4,869 |
| 2006 | 45 | 59.1% | 4,869 |
| 2007 | 45.4 | 59.6% | 4,869 |
| 2008 | 45.1 | 59.0% | 4,724 |
| 2009 | 42.3 | 55.5% | 4,869 |
| 2010 | 41.2 | 54.1% | 4,869 |
| 2011 | 38 | 49.8% | 4,989 |
| 2012 | 41.4 | 54.2% | 4,869 |
| 2013 | 51.9 | 68.2% | 4,869 |
| 2014 | 40 | 52.4% | 5,025 |
| 2015 | 49.7 | 65.2% | 5,025 |
| 2016 | 53.8 | 70.4% | 4,840 |
| 2017 | 49.7 | 65.2% | 4,690 |
| 2018 | 31.9 | 44.4% | 4,690 |
| 2019 | 37.1 | 51.6% | 4,690 |
| 2020 | 52.3 | 72.6% | 4,549 |
| 2021 | 48.9 | 68.0% | 4,690 |
| 2022 | 41.8 | 58.2% | 4,549 |
| 2023 | 49.3 | 68.7% | 4,549 |
| 2024 | 51.9 | 72.1% | 4,549 |
| 2025 | 46.8 | 65.1% | 4,549 |
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 |
|---|---|---|---|---|---|---|---|---|
| 2250 | Natural Gas Steam Turbine | ST | 2.2 | 2.2 | Oct 1948 | Operating | — | coming soon |
| 6500 | Natural Gas Steam Turbine | ST | 6 | 6 | Oct 1968 | Operating | — | coming soon |
| 500 | Natural Gas Steam Turbine | ST | 0.5 | 0.5 | Oct 1950 | Retired Jan 2003 | — | coming soon |
Owner / operator
Operator: Amalgamated Sugar Co-Nampa. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Amalgamated Sugar Co-Nampa | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| Happy Valley Battery Storage | 82 MW | 8 km |
| Kuna BESS | 150 MW | 18 km |
| Mora Drop Hydroelectric Project | 2 MW | 18.2 km |
| MC6 Hydro Facility | 2 MW | 22.2 km |
| Melba BESS | 2 MW | 26 km |
| Fargo Drop | 1 MW | 26.2 km |