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349 MW Natural Gas operating in Deuel, SD
349 MW
Nameplate Capacity
1
Generators
unit
Natural Gas Fired Combustion Turbine
Technology
2021
Operating Since
Coordinates
44.5813, -96.5653
County
Deuel, SD
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Otter Tail Power Co | Otter Tail Power | — |
| Owner(s) | Otter Tail Power Co | Otter Tail | — |
| Status | Operating | — | — |
Astoria Station is a 349 MW natural gas-fired power plant located in Deuel County, South Dakota. The plant began operating in 2021 and is owned and operated by Otter Tail Power Co, a subsidiary of Otter Tail. It utilizes a single natural gas-fired combustion turbine generator. Astoria Station ranks as the second-largest of six power plants in South Dakota, and 597th out of 945 plants nationally.
The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority. In its most recent year of operation, Astoria Station generated 455,359 MWh of electricity, achieving a capacity factor of 14.8%. Financial data indicates an installed cost of $572 per kW, according to FERC filings.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
17.9K MWh
Latest Month
455.4K MWh
Annual Generation
14.8%
Capacity Factor
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CO₂ Intensity
1233 lb/MWh
NOx
0.250 lb/MWh
SO₂
0.006 lb/MWh
CH₄
0.023 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
13.3%
Annual Net Gen
407 GWh
CO₂eq
1234 lb/MWh
Subregion
MRO West
Gas turbine · Otter Tail Power Company · Data from 2021–2024
$610/kW
Installed Cost
$0/kW
Annual CapEx
$31.2/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Market Position
ISO/RTO Market
MISO
LMP Node
OTP.ASTORIA
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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