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2 MW BESS operating in Ventura, CA — California Independent System Operator
2 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2021
Operating Since
Coordinates
34.1965, -118.9319
County
Ventura, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Acorn I Energy Storage LLC | — | — |
| Owner(s) | Acorn I Energy Storage LLC | — | — |
| Status | Operating | — | — |
Acorn I Energy Storage LLC is a 2 MW battery energy storage system located in Ventura County, California. The plant, which began operating in 2021, is owned and operated by Acorn I Energy Storage LLC. It consists of a single generator utilizing battery technology with lithium-ion (LIB) chemistry. The system has a total storage capacity of 6 MWh, providing a duration of 3 hours at its full power output.
The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Acorn I Energy Storage LLC ranks as the 267th largest power plant in California out of 300, and 1120th nationally out of 1205. The plant's primary fuel is listed as 'MWH', indicating that it draws power from the grid to charge its batteries.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
−7 MWh
Net Charging
-112 MWh
Annual Net Energy
-0.6%
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: $3.6M
Point of Interconnection
Nearest Substation
Newbury Substation
Substation Distance
0 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
MOORPARK_6_N069
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
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ask pi about Acorn I Energy Storage LLCCalifornia Independent System Operator (CISO)
Grid Voltage
16.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP