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10 MW BESS operating in Onslow, NC — Duke Energy Progress East
10 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
34.9177, -77.6313
County
Onslow, NC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | North Carolina El Member Corp | — | — |
| Owner(s) | North Carolina El Member Corp | — | — |
| Status | Operating | — | — |
The Archie Horne power plant is a 10 MW battery energy storage system (BESS) located in Onslow County, North Carolina. The plant began operating in 2024 and is owned and operated by North Carolina Electric Membership Corporation. It utilizes lithium-ion batteries (LIB) and has a total storage capacity of 20 MWh, providing a duration of 2 hours at full output. The plant is connected to the Duke Energy Progress East balancing authority within the SERC NERC region.
Archie Horne is ranked as the 10th largest energy storage plant out of 36 in North Carolina, and 750th nationally out of 1205 similar facilities. The plant's primary fuel source is listed as 'MWH', indicating it draws power from the grid to charge its batteries. The facility consists of a single generator and is part of the growing trend of grid-scale energy storage deployments across the United States.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
−40 MWh
Net Charging
-40 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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $13.6M
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
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ask pi about Archie HorneDuke Energy Progress East (CPLE)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility