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190 MW BESS operating in Hunt, TX
190 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2023
Operating Since
Coordinates
33.0047, -96.0767
County
Hunt, TX
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Acciona Energy USA Global, LLC | — | — |
| Owner(s) | Acciona Energy USA Global, LLC | — | — |
| Status | Operating | — | — |
Cunningham Storage is a 190 MW battery energy storage system located in Hunt County, Texas. The plant, which began operating in 2023, is owned and operated by Acciona Energy USA Global, LLC. It utilizes batteries as its primary fuel source, specifically lithium-ion batteries, and has a total storage capacity of 380 MWh, providing a duration of 2 hours at full power. The plant consists of a single generator.
Cunningham Storage operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, and is part of the TRE NERC region. It is ranked as the 135th largest power plant in Texas out of 224, and 331st nationally out of 514. The plant's operation has been noted in grid-related news articles.
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.
−1.2K MWh
Net Charging
-15.7K MWh
Annual Net Energy
-0.9%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $258.6M
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Market Position
ISO/RTO Market
ERCOT
LMP Node
STEAM_ENG123
Pricing Hub
HB_NORTH
Alt. Hub / Zone
LZ_NORTH
Location Type
Resource Node
Node Source
EIA-860 direct report
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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