Ventasso Energy Storage, LLC — Plant Summary
- EIA Plant ID
- 68509
- Capacity
- 50 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- San Diego, CA
- Operating Since
- —
- Generators
- 1
- Operator
- Big Sky Wind, LLC
- Parent Company
- —
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Ventasso Energy Storage, LLC
Under constructionBESS
Ranked #90 of 191 BESS plants in CA#401 of 837 nationally
50 MW BESS under construction in San Diego, CA — California Independent System Operator
EIA
50 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
—
Operating Since
Location
Coordinates
32.7967, -116.9700
County
San Diego, CA
Nearby Plants
- El Cajon Energy CenterNatural Gas60.5 MW · 0.2 km
- Cuyamaca Peak Energy PlantNatural Gas48.7 MW · 0.2 km
- North Johnson Energy CenterBESS50 MW · 0.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Big Sky Wind, LLC | — | — |
| Owner(s) | Big Sky Wind, LLC | — | — |
| Status | Under construction | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial DataBeta
Source: FERC Electric Quarterly ReportsHIGH
$65.2/MWh
PPA Price
Big Sky Wind, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
Shared substation inference
CPELCAJN_7_B1Nearby ISO Node
El Cajon SubstationSubstation
Garfield SubstationSubstation
News & Articles (1)Beta
Industry·corporate
RWE commissions 2 GW of new energy projects in the U.S., creating American jobs and economic opportunity
RWE continued to expand its footprint in the U.S. in 2025, bringing its total operational capacity to nearly 13 GW; ~3,500 construction jobs...
RWE (developer)
RWE·1 weeks ago
Last updated 2026-03-14
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