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13.4 MW Natural Gas Internal Combustion Engine (9 MW) + Petroleum Liquids (5 MW) standby in Yankton, SD — Southwest Power Pool
13.4 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Natural Gas Internal Combustion Engine + Petroleum Liquids
1963
Operating Since
Coordinates
42.8933, -97.3533
County
Yankton, SD
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | NorthWestern Energy - (SD) | — | — |
| Owner(s) | NorthWestern Energy - (SD) | — | — |
| Status | Standby | — | — |
The Yankton power plant, located in Yankton County, South Dakota, has a total capacity of 13.4 MW. The plant began operating in 1963 and is owned and operated by NorthWestern Energy - (SD). It is a hybrid facility utilizing both natural gas internal combustion engines and petroleum liquids as fuel sources. The plant consists of 4 generators.
Yankton operates within the Southwest Power Pool (SPP) balancing authority and the MRO NERC region. It is ranked as the 6th largest power plant out of 11 in South Dakota, and 275th out of 886 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
2013
$965/kW
Est. Construction Cost
Total estimated cost: $12.9M
Market Position
ISO/RTO Market
SPP
LMP Node
—
Pricing Hub
SPP North Hub
Node Source
OSM spatial match
Last updated 2026-03-14
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ask pi about YanktonSouthwest Power Pool (SWPP)
Grid Voltage
34.5 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility