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200 MW BESS operating in Salt Lake, UT — PacifiCorp - East
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
45.5594, -122.4201
County
Salt Lake, UT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Dominguez Grid, LLC | — | — |
| Owner(s) | Dominguez Grid, LLC | — | — |
| Status | Operating | — | — |
Dominguez Energy Storage is a 200 MW battery energy storage system located in Salt Lake County, Utah. The facility is owned and operated by Dominguez Grid, LLC. It interconnects to the PacifiCorp - East balancing authority within the Western Electricity Coordinating Council (WECC) NERC region. The plant's primary fuel is electricity (MWH), which it uses to charge and discharge its batteries.
Dominguez Energy Storage ranks as the 5th largest of 6 energy storage facilities in Utah, and 267th out of 514 nationally. The plant consists of a single generator utilizing battery technology. Recent news coverage indicates regulatory interest in the facility.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
−243 MWh
Net Charging
—
Annual Net Energy
—
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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $272.2M
This plant's balancing authority participates in CAISO's Western Energy Imbalance Market (WEIM). Direct nodal pricing data is not yet available.
Last updated 2026-03-26
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ask pi about Dominguez Energy StoragePacifiCorp - East (PACE)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP