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35.4 MW BESS operating in Adams, CO — Western Area Power Administration - Rocky Mountain Region
35.4 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
39.9303, -104.7943
County
Adams, CO
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Whetstone Power Operations LLC | — | — |
| Owner(s) | Prairie Enhanced, LLC | — | — |
| Status | Operating | — | — |
Prairie Center Energy LLC is a 35.4 MW battery energy storage system (BESS) located in Adams County, Colorado. The facility began operating in 2024 and is owned and operated by Whetstone Power Operations LLC. The plant utilizes batteries as its primary fuel source (MWH) and consists of a single generator. The BESS has a total storage capacity of 235 MWh, providing a duration of 6.64 hours. The battery chemistry is classified as "OTH" (other).
Prairie Center Energy operates within the Western Electricity Coordinating Council (WECC) NERC region, and its balancing authority is the Western Area Power Administration - Rocky Mountain Region. The plant is ranked as the 5th largest of 18 battery storage facilities in Colorado, and 641st nationally out of 1205 similar facilities.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
−68 MWh
Net Charging
-1.4K MWh
Annual Net Energy
-0.5%
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: $48.2M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
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ask pi about Prairie Center Energy LLCWestern Area Power Administration - Rocky Mountain Region (WACM)
Grid Voltage
12.47 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP