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134 MW Wind operating in Kingsman, KS — Southwest Power Pool
134 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2025
Operating Since
Coordinates
37.3411, -98.0131
County
Kingsman, KS
Nearby Plants
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 | Public Service Co of Oklahoma | Public Service Company of Oklahoma | — |
| Owner(s) | Invenergy Services LLC | American Electric Power Company | — |
| Status | Operating | — | — |
Flat Ridge 4 is a 134 MW wind power plant located in Kingsman County, Kansas. The facility, which began operating in 2025, utilizes onshore wind turbine technology and consists of a single generator. It is owned by Invenergy and operated by Invenergy Services LLC. The plant's primary fuel source is wind (WND).
In its most recent year of operation, Flat Ridge 4 generated 282,655 MWh of electricity, achieving a capacity factor of 41.0%. The plant operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region. Flat Ridge 4 ranks as the 38th largest power plant in Kansas out of 44, and 568th nationally out of 734 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
44.8K MWh
Latest Month
282.7K MWh
Annual Generation
41.0%
Capacity Factor
2023
$1,758/kW
Est. Construction Cost
Total estimated cost: $235.6M
Point of Interconnection
Nearest Substation
Harper Substation · 138 kV
Substation Distance
< 10 km
Operator
Wheatland Electric Cooperative
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
—
Pricing Hub
SPP North Hub
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
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No ask pi reports yet for this entity.
ask pi about Flat Ridge 4Southwest Power Pool (SWPP)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Investor-Owned Utility
Sector
IPP Non-CHP