10 MW BESS operating in Cumberland, NC — Duke Energy Progress East
10 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
34.8981, -78.8990
County
Cumberland, NC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | North Carolina El Member Corp | — | — |
| Owner(s) | North Carolina El Member Corp | — | — |
| Status | Operating | — | — |
The Butler battery storage facility is located in Cumberland County, North Carolina. The plant, owned and operated by North Carolina Electric Membership Corporation, came online in 2024. It has a total capacity of 10 MW provided by a single generator utilizing battery storage technology. The facility's primary fuel source is electricity (MWH).
The Butler plant utilizes lithium-ion (LIB) batteries with a total storage capacity of 20 MWh and a duration of 2 hours. It operates within the Duke Energy Progress East balancing authority and the SERC NERC region. Butler is ranked as the 9th largest battery energy storage system (BESS) in North Carolina out of 36 such facilities, and 794th nationally out of 1205.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Duke Energy Progress East
Grid Voltage
13.2 kV
Regulatory Status
RE
Entity Type
Cooperative
Sector
Electric Utility
−37 MWh
Net Charging
-37 MWh
Annual Net Energy
-0.0%
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.
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-14
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