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4.9 MW BESS operating in Oxford, ME — ISO New England Inc.
4.9 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2021
Operating Since
Coordinates
44.5322, -70.5190
County
Oxford, ME
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Agilitas Energy, Inc. | — | — |
| Owner(s) | Rumford ESS, LLC | — | — |
| Status | Operating | — | — |
Rumford ESS is a 4.9 MW battery energy storage system located in Oxford County, Maine. The plant began operating in 2021 and is owned and operated by Agilitas Energy, Inc. The facility consists of a single generator utilizing battery technology with a lithium-ion (LIB) chemistry. The plant's storage capacity is 10 MWh, providing a duration of approximately 2.04 hours at full output.
The Rumford ESS is interconnected to the ISO New England Inc. balancing authority within the Northeast Power Coordinating Council (NPCC) region. As of the latest rankings, it is the 5th largest of 6 battery storage plants in Maine and ranks 997th out of 1205 nationally. There has been one news article related to the plant, categorized under hazards.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
−4 MWh
Net Charging
-102 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.
2021
$1,796/kW
Est. Construction Cost
Total estimated cost: $8.8M
Point of Interconnection
Nearest Substation
Rumford Industrial Park Substation · 115 kV
Substation Distance
< 10 km
Operator
Central Maine Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
4138
Pricing Hub
.Z.MAINE
Node Source
EIA-860 direct report
No news articles linked yet for this plant.
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No ask pi reports yet for this entity.
ask pi about Rumford ESSISO New England Inc. (ISNE)
Grid Voltage
35.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP