- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
Angus Anson: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Angus Anson
Power plant · Gas, combustion turbine
Key facts
Power plant · Gas, combustion turbineran 7% of 2025 Retiring- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1994
- Net generation, 2025
- 238,535 MWh
- Grid
- 115 kV to Northern States Power Co - Minnesota (MISO)
- Location
- Minnehaha County, South Dakota
- Operated by
- Northern States Power Co - Minnesota
Operations
- Net generation, 2025
- 238,535
MWh - Fuel burned, 2025
- 2,906,956
MMBtu - Capacity factor, 2025
- 6.7
% - Heat rate, 2025
- 12,187
Btu/kWh
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 238,535 | 2,906,956 | 6.7% | 12,187 |
| 2024 | 237,297 | 2,907,416 | 6.7% | 12,252 |
| 2023 | 232,283 | 2,698,250 | 6.5% | 11,616 |
| 2022 | 114,890 | 1,386,093 | 3.2% | 12,064 |
| 2021 | 159,141 | 1,889,462 | 4.5% | 11,873 |
| 2020 | 133,403 | 1,575,242 | 3.7% | 11,808 |
| 2019 | 109,003 | 1,290,658 | 3.1% | 11,841 |
| 2018 | 120,297 | 1,433,019 | 3.4% | 11,912 |
| 2017 | 70,125 | 848,554 | 2.0% | 12,101 |
| 2016 | 65,708 | 819,355 | 1.8% | 12,470 |
| 2015 | 103,030 | 1,249,640 | 2.9% | 12,129 |
| 2014 | 25,795 | 370,014 | 0.7% | 14,344 |
| 2013 | 40,066 | 540,619 | 1.1% | 13,493 |
| 2012 | 112,730 | 1,450,582 | 3.2% | 12,868 |
| 2011 | 53,839 | 715,161 | 1.5% | 13,283 |
| 2010 | 84,887 | 1,078,060 | 2.4% | 12,700 |
| 2009 | 15,075 | 248,580 | 0.4% | 16,490 |
| 2008 | 121,435 | 1,557,285 | 3.4% | 12,824 |
| 2007 | 278,087 | 3,622,901 | 7.8% | 13,028 |
| 2006 | 208,101 | 2,730,731 | 5.9% | 13,122 |
| 2005 | 265,014 | 3,495,476 | 7.5% | 13,190 |
| 2004 | 105,674 | 1,499,360 | 3.0% | 14,188 |
| 2003 (11 of 12 months) | 100,137 | 1,380,904 | — | 13,790 |
| 2002 | 69,874 | 981,438 | 2.0% | 14,046 |
| 2001 | 126,939 | 1,773,262 | 3.6% | 13,969 |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.