9.9 MW BESS operating in Culberson, TX — Electric Reliability Council of Texas, Inc.
9.9 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2023
Operating Since
Coordinates
31.8218, -104.0475
County
Culberson, TX
Nearby Plants
| 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 | — | — |
Screwbean is a 9.9 MW battery energy storage system (BESS) located in Culberson County, Texas. The plant began operating in 2023 and is owned by Hunt Energy. The operator reported to the Energy Information Administration (EIA) is HEN Infrastructure, L.L.C. The facility utilizes lithium-ion batteries (LIB) and has a total storage capacity of 9.9 MWh, providing a duration of 1 hour at full output. The plant's primary fuel is reported to be MWH, reflecting its role as a storage facility rather than a generator.
Screwbean is located within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. In terms of size, it ranks as the 263rd largest power plant in Texas out of 313 facilities and 807th nationally out of 1205. Recent news coverage related to the plant has focused on hazards. The plant consists of one generator.
Generated from EIA, GEM, and public data sources
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
21 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
−25 MWh
Net Charging
-239 MWh
Annual Net Energy
-0.3%
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
Screwbean Substation · 138 kV
Substation Distance
0 km
Operator
Oncor
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
SBEAN_BESS
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
View all articles