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89.5 MW Wind operating in Glasscock, TX — Electric Reliability Council of Texas, Inc.
89.5 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2007
Operating Since
Coordinates
31.9850, -101.2944
County
Glasscock, TX
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 | RWE Clean Energy | E.ON Climate & Renewables | — |
| Owner(s) | Big Sky Wind, LLC | RWE Renewables | — |
| Status | Operating | operating | — |
GEM identifies the owner as RWE Renewables
This entity is not yet in the GEM ownership database — chain unavailable.
Sand Bluff Wind Farm is an 89.5 MW wind power facility located in Glasscock County, Texas. The plant began operating in 2007 and consists of a single generator utilizing onshore wind turbine technology. The facility is owned and operated by Big Sky Wind, LLC. Its turbines have a hub height of 78 meters and a rotor diameter of 87 meters. The wind turbines were manufactured by Gamesa, model G87-2.0.
The plant operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority. In the most recent year of data, Sand Bluff Wind Farm generated 318,241 MWh, achieving a capacity factor of 40.6%. The plant holds a rank of 206 out of 245 wind facilities in Texas, and 784 out of 1424 nationally. Financial data indicates a power purchase agreement (PPA) price of $65.2 per MWh.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
22.0K MWh
Latest Month
318.2K MWh
Annual Generation
40.6%
Capacity Factor
Big Sky Wind, LLC · Data from 2023–2025
$65.2/MWh
PPA Price
Point of Interconnection
Nearest Substation
Sand Bluff Substation · 345 kV
Substation Distance
< 10 km
Operator
Wind Energy Transmission Texas
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
MCDLD_FCSBW1
Pricing Hub
HB_WEST
Alt. Hub / Zone
LZ_WEST
Location Type
Resource Node
Node Source
EIA-860 direct report
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ask pi about Sand Bluff Wind FarmElectric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP