Cunningham Storage — Plant Summary
- EIA Plant ID
- 65410
- Capacity
- 190 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Hunt, TX
- Operating Since
- 2023
- Generators
- 1
- Operator
- Acciona Energy USA Global, LLC
- Parent Company
- —
- Annual Generation
- -15,676 MWh
- Capacity Factor
- -0.9%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Cunningham Storage
OperatingBESS
Ranked #90 of 256 BESS plants in TX#205 of 837 nationally
190 MW BESS operating in Hunt, TX — Electric Reliability Council of Texas, Inc.
EIA
190 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2023
Operating Since
Location
Coordinates
33.0047, -96.0767
County
Hunt, TX
Nearby Plants
- BT Signal RanchSolar50 MW · 2.3 km
- Powerlane PlantNatural Gas112.2 MW · 19.0 km
- Sterling Solar (TX)Solar10 MW · 20.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Acciona Energy USA Global, LLC | — | — |
| Owner(s) | Acciona Energy USA Global, LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
−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.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
ERCOT
LMP Node
STEAM_ENG123
Pricing Hub
HB_NORTH
Secondary Zone
LZ_NORTH
Location Type
Resource Node
Node Source
EIA-860 direct report
News & Articles (2)Beta
Grid·capacity addition
US battery storage capacity increased by 52% year over year, to 10.8 GW by the end of Q1
The 190MW/380MWh Cunningham facility being commissioned next year will be the largest operating battery energy storage project on the Texas grid.
Utility Dive·2 years ago
Grid·capacity addition
ERCOT accounted for 70% of US battery storage deployments in Q1
710MW of battery storage came online in the US in Q1 2023 of which around 70% was in the ERCOT, Texas market, S&P Global said.
ERCOT (other)S&P Global (other)
Energy-Storage.News·2 years ago
Last updated 2026-03-26
View all articles