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188.5 MW Batteries (36 MW) + Onshore Wind Turbine (153 MW) operating in Ector, TX
188.5 MW
Nameplate Capacity
3
Generators
units
Hybrid (2)
Technology
Batteries + Onshore Wind Turbine
2009
Operating Since
Coordinates
31.9824, -102.8218
County
Ector, TX
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Duke Energy Renewables Services | Duke Energy | — |
| Owner(s) | DEGS Wind 1 LLC, TE Notrees LLC | Duke Energy | — |
| Status | Operating | operating | — |
Notrees Windpower Hybrid is a wind and battery energy storage hybrid plant located in Ector County, Texas. The plant, owned by Duke Energy and operated by Duke Energy Renewables Services, began operation in 2009. It has a total capacity of 188.5 MW and is comprised of onshore wind turbines and batteries. The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority.
The wind component of Notrees Windpower Hybrid utilizes Vestas V82-1.65 wind turbines, with a rotor diameter of 82 meters and a hub height of 80 meters. The battery energy storage system (BESS) has a capacity of 13.6 MWh and a duration of 0.38 hours, utilizing lithium-ion (LIB) chemistry. The plant's latest annual generation was 237,051 MWh, resulting in a capacity factor of 14.3%. Notrees Windpower Hybrid is ranked 117th out of 200 wind plants in Texas, and 384th out of 734 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric 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
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
19.3K MWh
Latest Month
237.1K MWh
Annual Generation
14.3%
Capacity Factor
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2013
$913/kW
Est. Construction Cost
Total estimated cost: $172.1M
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Point of Interconnection
Nearest Substation
Notrees Substation · 138 kV
Substation Distance
0 km
Operator
Duke Energy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
NWF_NWF1
Pricing Hub
HB_WEST
Alt. Hub / Zone
LZ_WEST
Location Type
Resource Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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