316.2 MW Batteries (91 MW) + Solar Photovoltaic (225 MW) operating in Haskell, TX — Electric Reliability Council of Texas, Inc.
316.2 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
33.0027, -99.6146
County
Haskell, TX
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Azure Sky Solar Project, LLC | ENGIE | — |
| Owner(s) | Azure Sky Solar Project, LLC | ENGIE | — |
| Status | Operating | operating | — |
Azure Sky Solar is a 316.2 MW hybrid solar and battery energy storage system (BESS) located in Haskell County, Texas. The plant, which began operating in 2021, is owned by ENGIE, a company based in France, and operated by Azure Sky Solar Project, LLC. The facility utilizes solar photovoltaic technology with single-axis tracking. The BESS component has a storage capacity of 80.5 MWh, with a duration of 0.88 hours and lithium-ion battery chemistry.
The plant's latest annual generation was 536,849 MWh, resulting in a capacity factor of 19.4%. Azure Sky Solar operates within the Electric Reliability Council of Texas, Inc. (ERCOT) balancing authority. It is ranked as the 43rd largest plant in Texas out of 224, and 130th nationally out of 514. Financial data is available for the plant from LBNL, and it has been featured in four news articles covering grid, industry, and hazard-related topics.
Generated from EIA, GEM, and public data sources
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
27.3K MWh
Latest Month
536.8K MWh
Annual Generation
19.4%
Capacity Factor
$21.5/MWh
Energy Value
Point of Interconnection
Nearest Substation
Solara Substation · 138 kV
Substation Distance
2.228 km
Operator
Consolidated Edison
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
AZSP_SLR_RN
Pricing Hub
HB_NORTH
Secondary Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
Utility-Scale Solar Can Withstand Severe Hailstorms. Here’s How
As Texas becomes the country's leader in generating solar power, the state's propensity for severe hailstorms is a hazard that energy...
Virtual Power Plants Showed Up for Their Biggest Test Yet. Here Are the Results
The California grid got an evening boost from 535 megawatts of home-based batteries, giving a hint at what this decentralized resource can...
Hundreds of Old EV Batteries Have New Jobs in Texas: Stabilizing the Grid
After reaching the end of their automotive lives, the batteries are being reused to provide lower-cost grid energy storage.
Merit Controls explains its growing turnkey control system, power plant modeling services
Merit Controls, a provider of power control systems and grid integration solutions for utility-scale applications, has significantly...
Last updated 2026-03-14
View all articles