Astoria Station
Natural gas power plant in Deuel County, South Dakota. 349 MW of nameplate capacity across 1 generator, operated by Otter Tail Power Co.
Also known as EIA plant 61144
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 349 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- April 2021First generator online
- Operator
- Otter Tail Power CoEIA operator ID 14232
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Deuel County, SD44.5750, −96.5594
- EIA plant ID
- 61144EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Astoria Station produces
Free · EIA-923Net generation, 2025
455 GWh
455,359 MWh, final
Capacity factor, 2025
14.9%
2024: 13.5%
January to July 2026
255 GWh
Provisional
Range, 2022 to 2025
175.9–455.4
GWh a year. Low 2022, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | 271,388 | Not reported | 9 of 12 |
| 2022 | 175,856 | 5.8% | 12 of 12 |
| 2023 | 407,230 | 13.3% | 12 of 12 |
| 2024 | 413,200 | 13.5% | 12 of 12 |
| 2025 | 455,359 | 14.9% | 12 of 12 |
| 2026 (provisional, partial year) | 254,709 | 14.3% | 7 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
283,847
US short tons. 2024: 254,652
SO₂, 2025
1
US short tons
NOx, 2025
65
US short tons
CO₂ per MWh, calculated
0.62 t
About 1,247 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 61144 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 | 349.0 | April 2021 |
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 Otter Tail Power Co 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 Astoria Station
More plants operated by Otter Tail Power Co
Questions about Astoria Station
How much power does Astoria Station produce?
Astoria Station reported 455,359 MWh (455 GWh) of net generation in 2025, a 14.9% capacity factor on 349 MW of nameplate capacity. From January to July 2026 it reported 255 GWh, which is provisional.
Where is Astoria Station?
Astoria Station is in Deuel County, South Dakota, at 44.5750, −96.5594. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Astoria Station?
EIA-860M for August 2026 lists Otter Tail Power Co as the operator (EIA operator ID 14232). The operator is not always the owner.
When did Astoria Station start operating?
Its first generator began operating in April 2021, according to EIA-860M.
Does InfraMap have power prices for Astoria Station?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Astoria Station, 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
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page