Prevailing Wind Park — Plant Summary
- EIA Plant ID
- 62247
- Capacity
- 220 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Yankton, SD
- Operating Since
- 2020
- Generators
- 1
- Operator
- AES Distributed Energy
- Parent Company
- —
- Annual Generation
- 850,790 MWh
- Capacity Factor
- 44.2%
- Balancing Authority
- Southwest Power Pool
- ISO/RTO
- SPP
- NERC Region
- MRO
Prevailing Wind Park
OperatingWind
Ranked #4 of 25 Wind plants in SD#223 of 1442 nationally
220 MW Wind operating in Yankton, SD — Southwest Power Pool
EIAGEMWD
220 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2020
Operating Since
Location
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | AES Distributed Energy | Sustainable Power Group LLC [100%] | — |
| Owner(s) | AES Distributed Energy | Sustainable Power Group LLC [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
About
Prevailing Wind Park is a 220 MW wind farm located in Yankton County, South Dakota. The facility began operating in 2020 and is owned and operated by AES Distributed Energy. The plant utilizes a single generator consisting of multiple onshore wind turbines. The turbines are manufactured by GE Wind, model GE3.8-137, with a hub height of 110 meters and a rotor diameter of 137 meters.
The plant's latest annual generation was 850,790 MWh, resulting in a capacity factor of 44.2%. Prevailing Wind Park is the fourth-largest wind farm in South Dakota out of 14, and ranks 219th nationally out of 734 wind plants. The facility operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
73.5K MWh
Latest Month
850.8K MWh
Annual Generation
44.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Utica Junction Substation · 230 kV
Substation Distance
0 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
WAUE.BEPM.PREVAIL
Pricing Hub
SPP North Hub
Node Source
Curated node match
News & Articles (6)Beta
Hazards·wildfire
Red Flag Warning: Plymouth; Woodbury; Ida; Dixon; Dakota; Gregory; Charles Mix; Bon Homme; Yankton; Clay; Union
Red Flag Warning issued March 21 at 10:58AM CDT until March 21 at 10:00PM CDT by NWS Sioux Falls SD
Red Flag Warning (hazard)
NWS Sioux Falls SD·5 days ago
Regulatory·state puc
Seven years later, wind farm tax change still irks some South Dakota landowners
We got screwed over,” one White Lake landowner said. “The politicians in Pierre socialized the wind farm money that was supposed to go...
Mitchell Republic·2 years ago
Hazards·other
Crane Collapses Near Tripp
A crane lies on the ground at the Prevailing Wind Park site near Tripp Wednesday. The crane tipped over at the site, but sPower company...
sPower (operator)
yankton.net·6 years ago
Industry·capacity addition
Wind energy expansion in SD to bring 888 more turbines, $3.3B investment
The approved and docketed projects would raise the total of wind farms to 25 and nearly triple the number of wind towers in the state.
South Dakota News Watch·6 years ago
Last updated 2026-03-21
View all 6 articles