Sun Valley Storage — Plant Summary
- EIA Plant ID
- 68896
- Capacity
- 123.3 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Hill, TX
- Operating Since
- 2024
- Generators
- 1
- Operator
- Sun Valley Storage LLC
- Parent Company
- —
- Annual Generation
- -6,418 MWh
- Capacity Factor
- -0.9%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Sun Valley Storage
OperatingBESS
Ranked #131 of 256 BESS plants in TX#278 of 837 nationally
123.3 MW BESS operating in Hill, TX — Electric Reliability Council of Texas, Inc.
EIA
123.3 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Location
Coordinates
31.8645, -97.0145
County
Hill, TX
Nearby Plants
- Sun Valley Solar ProjectSolar250 MW · 1.4 km
- Ash Creek BESSBESS306 MW · 4.0 km
- Ash Creek SolarSolar408.9 MW · 4.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Sun Valley Storage LLC | — | — |
| Owner(s) | Sun Valley Storage LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Sun Valley Storage is a 123.3 MW battery energy storage system located in Hill County, Texas. The plant began operating in 2024 and is owned and operated by Sun Valley Storage LLC. It consists of a single generator utilizing lithium-ion battery (LIB) technology. The plant's storage capacity is 123 MWh, providing a duration of approximately 1 hour at full power.
The primary fuel source for Sun Valley Storage is electricity (MWH), which it uses to charge its batteries. The plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the Texas Reliability Entity (TRE) NERC region. In terms of size, Sun Valley Storage ranks as the 187th largest power plant in Texas out of 224, and 437th nationally out of 514.
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
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
−837 MWh
Net Charging
-6.4K 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
SUNVASLR_ALL
Pricing Hub
HB_NORTH
Secondary Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
News & Articles (10)Beta
General
ENGIE Announces Commissioning of its 100MW+ Sun Valley Utility Scale Battery Storage Project in U.S.
100MWh Project will Provide Services to Support Growing ERCOT Grid ENGIE's recently commission 100MWh Sun Valley Storage Project in Hill...
Yahoo Finance·2 years ago
General
ENGIE commissions 100-MWh battery project near existing Texas solar array
ENGIE North America has successfully commissioned the 100-MWh Sun Valley Battery Storage project in Hill County, Texas. The energy storage...
Solar Power World·2 years ago
Industry·corporate
ENGIE Announces Commissioning of its 100MW+ Sun Valley Utility Scale Battery Storage Project in U.S.
100MWh Project will Provide Services to Support Growing ERCOT Grid ENGIE's recently commission 100MWh Sun Valley Storage Project in Hill...
ENGIE (developer)
Yahoo Finance·2 years ago
General
ENGIE commissions 100-MWh battery project near existing Texas solar array
ENGIE North America has successfully commissioned the 100-MWh Sun Valley Battery Storage project in Hill County, Texas. The energy storage...
Solar Power World·2 years ago
Last updated 2026-03-14
View all 10 articles