Saint Marys Hospital Power Plant
Olmsted County, Minnesota · EIA plant ID 54262 · Operator: St Mary's Hospital
×3 MW natural gas retired since 2020 (latest May 2020)
Nameplate16MWSummer 16 MW
Generators5in service
Net generation56GWh12 mo to Aug 2026
Capacity factor40%gas/coal/oil units, summer MW
Heat rate4,422Btu/kWhfossil units, electric fuel, HHV
First online1971Runs as baseload
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), 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 | 58 | — | — |
| 2002 | 56.8 | — | — |
| 2003 | 37.1 | 34.3% | 12,285 |
| 2004 | 3.8 | 3.5% | 7,545 |
| 2005 | 41.1 | 37.9% | 7,568 |
| 2006 | 40.1 | 37.0% | 7,565 |
| 2007 | 40.5 | 37.3% | 7,559 |
| 2008 | 39.9 | 36.6% | 9,199 |
| 2009 | 49.3 | 45.4% | 9,086 |
| 2010 | 52.7 | 48.5% | 7,549 |
| 2011 | 55.3 | 43.5% | 7,541 |
| 2012 | 53.8 | 41.1% | 7,548 |
| 2013 | 55.4 | 42.5% | 7,478 |
| 2014 | 53.8 | 41.2% | 7,538 |
| 2015 | 50.6 | 38.7% | 7,541 |
| 2016 | 52.3 | 40.0% | 4,452 |
| 2017 | 51.4 | 39.4% | 4,420 |
| 2018 | 55.8 | 42.8% | 4,422 |
| 2019 | 53.8 | 41.2% | 4,423 |
| 2020 | 54.3 | 41.0% | 4,422 |
| 2021 | 53.8 | 38.9% | 4,423 |
| 2022 | 58.5 | 42.2% | 4,423 |
| 2023 | 55 | 39.8% | 4,423 |
| 2024 | 55 | 39.6% | 4,422 |
| 2025 | 56.3 | 40.7% | 4,423 |
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 | Natural Gas Fired Combustion Turbine | GT | 4.7 | 4.5 | Jun 1996 | Operating | — | coming soon |
| 4 | Natural Gas Steam Turbine | ST | 3 | 2.7 | Jan 1971 | Operating | — | coming soon |
| 5 | Petroleum Liquids | IC | 2.5 | 2.5 | Jan 1978 | Operating (Standby / backup) | — | coming soon |
| 6B | Petroleum Liquids | IC | 3.3 | 3.3 | Jul 2020 | Operating | — | coming soon |
| 7 | Petroleum Liquids | IC | 2.8 | 2.8 | Mar 2011 | Operating | — | coming soon |
| 6 | Natural Gas Internal Combustion Engine | IC | 2.7 | 2.7 | Jan 1989 | Retired May 2020 | — | coming soon |
Owner / operator
Operator: St Mary's Hospital. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| St Mary's Hospital | 100.0% | 16 MW |
Nearby plants
Within 80 km.
| Water Reclamation Plant | 2 MW | 3.8 km |
| 4710 Hosting | 8 MW | 4.5 km |
| IBM West | 4 MW | 5.1 km |
| Ringe | 3 MW | 6.4 km |
| Cascade Creek | 85 MW | 7.4 km |
| Westside Solar | 10 MW | 7.4 km |