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100 MW BESS operating in Wake, NC — Duke Energy Progress East
100 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Coordinates
35.7820, -78.4535
County
Wake, NC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Duke Energy Progress - (NC) | Duke Energy Progress | — |
| Owner(s) | Duke Energy Progress - (NC) | Duke Energy | — |
| Status | Operating | — | — |
Knightdale Battery is a 100 MW battery energy storage system located in Wake County, North Carolina. The plant is owned and operated by Duke Energy Progress - (NC), a subsidiary of Duke Energy. It consists of a single generator utilizing battery technology and has a primary fuel source designated as MWH, indicating it draws power from the grid for storage and later dispatch. The facility is situated within the Duke Energy Progress East balancing authority area and the SERC NERC region.
The Knightdale Battery is ranked as the 5th largest battery storage facility in North Carolina, out of a total of 5 such plants in the state. Nationally, it holds a rank of 506 out of 514 battery storage facilities. The plant's operations and impact on the grid have been noted in at least two news articles.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
−945 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: $136.1M
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-03-26
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ask pi about Knightdale BatteryDuke Energy Progress East (CPLE)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility