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Canceled or postponed, according to EIA. Last listed as operating or planned in August 2025. EIA-860M · Sep 2026
250 MW BESS in Dallas, TX
250 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
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Coordinates
32.5804, -96.8755
County
Dallas, TX
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Vesper Energy Development LLC | — | — |
| Owner(s) | Vesper Energy Development LLC | — | — |
| Status | Canceled or postponed | — | — |
Emerald Hill Energy Storage is a 250 MW battery energy storage system located in Dallas County, Texas. The plant is owned and operated by Vesper Energy Development LLC. It consists of a single generator utilizing batteries as its primary fuel source, designated by the code "MWH" in energy data systems. The plant operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, which falls under the Texas Reliability Entity (TRE) NERC region.
Emerald Hill Energy Storage holds a notable position within the Texas energy landscape, ranking as the 69th largest power plant in the state out of 224 facilities. Nationally, it is ranked 204th out of 514 power plants. The plant's presence has garnered some attention in industry news, as reflected by one news article related to the facility.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
No generation data available for this plant.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $340.3M
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Market Position
ISO/RTO Market
ERCOT
LMP Node
—
Pricing Hub
HB_NORTH
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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