9.9 MW BESS operating in Ward, TX — Electric Reliability Council of Texas, Inc.
9.9 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2022
Operating Since
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | HEN Infrastructure, L.L.C. | Hunt Energy Network | — |
| Owner(s) | Hunt Energy Network, LLC, John Hancock Funding Company, Manulife Infrastructure II Holdings A, L.P. | Hunt Energy | — |
| Status | Operating | — | — |
The Rattlesnake (TX) energy storage plant is located in Ward County, Texas. The facility, owned by Hunt Energy and operated by HEN Infrastructure, L.L.C., has a total capacity of 9.9 MW. It began operating in 2022 and consists of a single generator utilizing battery storage technology. The primary fuel type is listed as MWH, indicating it draws power from the grid to charge its batteries.
The plant's battery energy storage system (BESS) has a storage capacity of 9.9 MWh and a duration of 1 hour. The battery chemistry is Lithium Ion (LIB). Rattlesnake (TX) operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority and the TRE NERC region. In terms of size, the plant ranks 276th out of 313 power plants in Texas and 814th out of 1205 nationally. Recent news reports indicate at least one article related to hazards at the facility.
Generated from EIA, GEM, and public data sources
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
24.94 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
−24 MWh
Net Charging
-362 MWh
Annual Net Energy
-0.4%
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.
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Lonestar Substation · 138 kV
Substation Distance
0 km
Operator
Texas-New Mexico Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
RTLSNAKE_BT
Pricing Hub
HB_WEST
Secondary Zone
LZ_WEST
Location Type
Resource Node
Node Source
Curated node match
Fire Weather Watch: Sacramento Foothills and Guadalupe Mountains; Chaves County Plains; Eddy Plains; Lea; Gaines; Dawson
Fire Weather Watch issued March 21 at 2:43AM CDT until March 23 at 12:00AM CDT by NWS Midland/Odessa TX
Last updated 2026-03-21
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