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1.5 MW Batteries (1 MW) + Solar Photovoltaic (1 MW) operating in Berkshire, MA — Southern Company Services, Inc. - Trans
1.5 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2023
Operating Since
Coordinates
42.4640, -73.1840
County
Berkshire, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Madison Energy Investments LLC | — | — |
| Owner(s) | Madison Energy Investments LLC | — | — |
| Status | Operating | operating | — |
The 401 South power plant, located in Berkshire County, Massachusetts, is a hybrid solar and battery storage facility with a total capacity of 1.5 MW. The plant began operating in 2023 and is owned and operated by Madison Energy Investments LLC. It consists of two generators utilizing both solar photovoltaic technology with fixed-tilt tracking and battery energy storage. The battery energy storage system (BESS) has a capacity of 2 MWh, providing a duration of 2 hours and employing lithium-ion battery (LIB) chemistry.
401 South's primary fuel source is listed as MWH. In its first year of operation, the plant generated 403 MWh, resulting in a capacity factor of 3.1%. The plant operates within the Southern Company Services, Inc. - Trans balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, 401 South ranks 122nd out of 126 power plants in Massachusetts and 1161st out of 1205 plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
21 MWh
Net Discharge
403 MWh
Annual Net Energy
3.1%
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.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $2.0M
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 401 SouthSouthern Company Services, Inc. - Trans (SOCO)
Grid Voltage
12.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP