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5 MW BESS operating in Clark, IN — Midcontinent Independent Transmission System Operator, Inc..
5 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2020
Operating Since
Coordinates
38.5019, -85.6946
County
Clark, IN
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Duke Energy Indiana, LLC | Duke Energy Indiana | — |
| Owner(s) | Duke Energy Indiana, LLC | Duke Energy | — |
| Status | Operating | — | — |
The Nabb Battery Energy Storage System is a 5 MW battery energy storage facility located in Clark County, Indiana. The plant, which began operating in 2020, has one generator and is owned and operated by Duke Energy Indiana, LLC, a subsidiary of Duke Energy. The facility utilizes lithium-ion batteries (LIB) and has a total storage capacity of 5 MWh, providing a duration of 1 hour at full output.
The Nabb BESS operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the ReliabilityFirst Corporation (RFC) NERC region. It ranks as the 7th largest of 8 battery storage facilities in Indiana, and 994th nationally out of 1205 such facilities. Financial data reported to FERC indicates a power purchase agreement (PPA) price of $5.82 per MWh.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
34.5 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
−13 MWh
Net Charging
-53 MWh
Annual Net Energy
-0.1%
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.
Duke Energy Indiana, LLC · Data from 2019–2025
$5.7/MWh
PPA Price
Market Position
ISO/RTO Market
MISO
LMP Node
CIN.ESR.NABB
Pricing Hub
INDIANA.HUB
Location Type
Generation Node
Node Source
Curated node match
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