Angus Anson
Natural gas power plant in Minnehaha County, South Dakota. 405.7 MW of nameplate capacity across 3 generators, operated by Northern States Power Co - Minnesota.
Also known as Angus C. Anson Generating Plant · EIA plant 7237
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 405.7 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- August 1994First generator online
- Operator
- Northern States Power Co - MinnesotaEIA operator ID 13781
- Grid
- MISOBalancing authority MISO
- Price nodes
- 3 MISO nodesResource nodes with prices
- Location
- Minnehaha County, SD43.6035, −96.6356
- EIA plant ID
- 7237EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Angus Anson produces
Free · EIA-923Net generation, 2025
239 GWh
238,535 MWh, final
Capacity factor, 2025
6.7%
2024: 6.7%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
65.7–238.5
GWh a year. Low 2016, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 112,000 | Not reported | 12 of 12 |
| 2001 | 126,939 | Not reported | 12 of 12 |
| 2002 | 69,874 | Not reported | 12 of 12 |
| 2003 | 100,137 | Not reported | 11 of 12 |
| 2004 | 105,674 | Not reported | 12 of 12 |
| 2005 | 265,014 | Not reported | 12 of 12 |
| 2006 | 208,101 | Not reported | 12 of 12 |
| 2007 | 278,087 | Not reported | 12 of 12 |
| 2008 | 121,435 | Not reported | 12 of 12 |
| 2009 | 15,075 | Not reported | 12 of 12 |
| 2010 | 84,887 | 2.4% | 12 of 12 |
| 2011 | 53,839 | 1.5% | 12 of 12 |
| 2012 | 112,730 | 3.2% | 12 of 12 |
| 2013 | 40,066 | 1.1% | 12 of 12 |
| 2014 | 25,795 | 0.7% | 12 of 12 |
| 2015 | 103,030 | 2.9% | 12 of 12 |
| 2016 | 65,708 | 1.8% | 12 of 12 |
| 2017 | 70,125 | 2.0% | 12 of 12 |
| 2018 | 120,297 | 3.4% | 12 of 12 |
| 2019 | 109,003 | 3.1% | 12 of 12 |
| 2020 | 133,403 | 3.7% | 12 of 12 |
| 2021 | 159,141 | 4.5% | 12 of 12 |
| 2022 | 114,890 | 3.2% | 12 of 12 |
| 2023 | 232,283 | 6.5% | 12 of 12 |
| 2024 | 237,297 | 6.7% | 12 of 12 |
| 2025 | 238,535 | 6.7% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · MISOEmissions
Free · EPA CAMPDCO₂, 2025
184,092
US short tons. 2024: 178,926
SO₂, 2025
1
US short tons
NOx, 2025
73
US short tons
CO₂ per MWh, calculated
0.77 t
About 1,544 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (2, 3, 4), matched to EIA plant 7237 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 119.7 | August 1994 |
| 2 | Natural Gas Fired Combustion Turbine | 119.7 | August 1994 |
| 4 | Natural Gas Fired Combustion Turbine | 166.3 | June 2005 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Northern States Power Co - Minnesota as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Angus Anson
More plants operated by Northern States Power Co - Minnesota
Questions about Angus Anson
How much power does Angus Anson produce?
Angus Anson reported 238,535 MWh (239 GWh) of net generation in 2025, a 6.7% capacity factor on 405.7 MW of nameplate capacity.
Where is Angus Anson?
Angus Anson is in Minnehaha County, South Dakota, at 43.6035, −96.6356. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Angus Anson?
EIA-860M for August 2026 lists Northern States Power Co - Minnesota as the operator (EIA operator ID 13781). The operator is not always the owner.
When did Angus Anson start operating?
Its first generator began operating in August 1994, according to EIA-860M.
Does InfraMap have power prices for Angus Anson?
Yes. InfraMap has MISO day-ahead and real-time prices at 3 price nodes linked to Angus Anson, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page