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303.5 MW Wind operating in Johnston, OK — Southwest Power Pool
303.5 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2020
Operating Since
Coordinates
34.4874, -96.7805
County
Johnston, OK
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | ALLETE Clean Energy | ALLETE Clean Energy | — |
| Owner(s) | ALLETE Clean Energy | ALLETE Clean Energy | — |
| Status | Operating | operating | — |
GEM identifies the owner as ALLETE Clean Energy
This entity is not yet in the GEM ownership database — chain unavailable.
Diamond Spring, LLC is a 303.5 MW wind power plant located in Johnston County, Oklahoma. The facility began operating in 2020 and is owned and operated by ALLETE Clean Energy. It utilizes a single generator consisting of onshore wind turbines. The plant ranks as the 3rd largest of 57 wind facilities in Oklahoma, and 74th out of 734 nationally.
The plant's wind turbines are manufactured by GE Wind, model GE2.75-127, with a hub height of 89 meters and a rotor diameter of 127 meters. In its most recent year of operation, Diamond Spring generated 733,144 MWh of electricity, achieving a capacity factor of 27.6%. The plant 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
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
97.7K MWh
Latest Month
733.1K MWh
Annual Generation
27.6%
Capacity Factor
2020
$1,329/kW
Est. Construction Cost
Total estimated cost: $403.4M
Market Position
ISO/RTO Market
SPP
LMP Node
OKGE.TNSK.DSW
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
Curated node match
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ask pi about Diamond Spring, LLCSouthwest Power Pool (SWPP)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP