Alta Municipal Utilities
Buena Vista County, Iowa · EIA plant ID 1121 · Operator: City of Alta - (IA)
×1 MW oil retired since 2020 (latest Apr 2021)
Nameplate4MWSummer 4 MW
Generators2in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate10,056Btu/kWhfossil units, electric fuel, HHV
First online2018Runs as rarely runs
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 | 0.1% | 13,545 |
| 2002 | 0 | 0.2% | 11,878 |
| 2003 | 0.1 | 0.5% | 12,207 |
| 2004 | 0 | 0.0% | 15,200 |
| 2005 | 0 | 0.0% | 13,140 |
| 2006 | 0 | 0.2% | 12,690 |
| 2007 | 0 | 0.1% | 12,500 |
| 2008 | 0 | 0.0% | 17,857 |
| 2009 | 0 | 0.1% | 14,875 |
| 2010 | 0 | 0.0% | 14,500 |
| 2011 | 0 | 0.1% | 12,667 |
| 2012 | 0 | 0.0% | 11,143 |
| 2013 | 0 | 0.1% | 9,750 |
| 2014 | 0 | 0.0% | — |
| 2015 | 0 | 0.0% | — |
| 2016 | 0 | 0.0% | — |
| 2017 | 0 | 0.0% | — |
| 2018 | 0 | 0.1% | 22,333 |
| 2019 | 0.1 | 0.3% | 9,756 |
| 2020 | 0 | 0.1% | 9,333 |
| 2021 | 0.2 | 0.4% | 9,698 |
| 2022 | 0.2 | 0.5% | 18,092 |
| 2023 | 0.4 | 1.1% | 10,110 |
| 2024 | 0.1 | 0.2% | 10,514 |
| 2025 | 0.1 | 0.1% | 10,056 |
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 |
|---|---|---|---|---|---|---|---|---|
| 2A | Petroleum Liquids | IC | 2 | 2 | Nov 2018 | Operating (Standby / backup) | — | coming soon |
| 3A | Petroleum Liquids | IC | 2 | 2 | Nov 2018 | Operating (Standby / backup) | — | coming soon |
| 1 | Petroleum Liquids | IC | 1 | 0.9 | Aug 1947 | Retired Apr 2021 | — | coming soon |
| 3 | Petroleum Liquids | IC | 1.1 | 1 | Jun 1990 | Retired Nov 2014 | — | coming soon |
Owner / operator
Operator: City of Alta - (IA). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Alta - (IA) | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Storm Lake 1 | 114 MW | 8.5 km |
| Intrepid | 176 MW | 13.5 km |
| Storm Lake II | 80 MW | 20.5 km |
| Richland | 131 MW | 35.1 km |
| Ida Grove Wind | 301 MW | 36.6 km |
| Sac County Wind, LLC | 80 MW | 37.7 km |