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50 MW BESS under construction in San Diego, CA — California Independent System Operator
50 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Coordinates
32.7967, -116.9700
County
San Diego, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | RWE Clean Energy | — | — |
| Owner(s) | Big Sky Wind, LLC | — | — |
| Status | Under construction | — | — |
Ventasso Energy Storage, LLC, is a 50 MW battery energy storage system located in San Diego County, California. The plant, identified by the EIA plant code 68509, is owned and operated by Big Sky Wind, LLC. It consists of a single generator utilizing batteries as its primary fuel source, designated as MWH in EIA data. The facility operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The plant is ranked 158th in size among power plants in California and 613th nationally. Financial data indicates that Ventasso Energy Storage has a power purchase agreement (PPA) price of $65.2 per MWh, as reported in FERC Electric Quarterly Reports (EQR).
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
No generation data available for this plant.
Big Sky Wind, LLC · Data from 2023–2025
$65.2/MWh
PPA Price
Market Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
Shared substation inference
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ask pi about Ventasso Energy Storage, LLCCalifornia Independent System Operator (CISO)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP