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20 MW BESS operating in Sussex, NJ — PJM Interconnection, LLC
20 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
41.4887, -88.1089
County
Sussex, NJ
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | VESI 34 LLC | — | — |
| Owner(s) | VESI 34 LLC | — | — |
| Status | Operating | — | — |
Montague Energy Storage is a 20 MW battery energy storage system located in Sussex County, New Jersey. The plant, which began operating in 2024, is owned and operated by VESI 34 LLC. It utilizes one generator and is composed of batteries with a total storage capacity of 20 MWh, providing a duration of 1 hour. The battery chemistry is Lithium Ion (LIB).
The facility operates within the PJM Interconnection, LLC balancing authority and the NPCC NERC region. Montague Energy Storage is ranked as the 2nd largest of 10 battery storage plants in New Jersey, and 682nd nationally out of 1205 such facilities.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
−180 MWh
Net Charging
-276 MWh
Annual Net Energy
-0.2%
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: $27.2M
Market Position
ISO/RTO Market
PJM
LMP Node
RECO
Pricing Hub
WESTERN HUB
Location Type
ZONE
Node Source
Curated node match
Last updated 2026-03-26
View all 5 articlesNo ask pi reports yet for this entity.
ask pi about Montague Energy StoragePJM Interconnection, LLC (PJM)
Grid Voltage
34.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP