North Johnson Energy Center — Plant Summary
- EIA Plant ID
- 69030
- Capacity
- 50 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Under construction
- Location
- San Diego, CA
- Operating Since
- —
- Generators
- 1
- Operator
- Wellhead Services, Inc
- Parent Company
- Wellhead Electric Company
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
North Johnson Energy Center
Under constructionBESS
Ranked #89 of 191 BESS plants in CA#404 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
32.7961, -116.9721
County
San Diego, CA
Nearby Plants
- Cuyamaca Peak Energy PlantNatural Gas48.7 MW · 0.0 km
- El Cajon Energy CenterNatural Gas60.5 MW · 0.1 km
- Ventasso Energy Storage, LLCBESS50 MW · 0.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wellhead Services, Inc | Wellhead Services | — |
| Owner(s) | Wellhead Services, Inc | Wellhead Electric Company | — |
| Status | Under construction | — | — |
Ownership Chain
About
North Johnson Energy Center is a 50 MW battery storage facility located in San Diego County, California. The plant, identified by plant ID 69030, is owned by Wellhead Electric Company and operated by Wellhead Services, Inc. It consists of a single generator utilizing batteries as its energy source (MWH). 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 as the 157th largest in California out of 300 facilities, and 610th nationally out of 1205.
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
Industrial Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
El Cajon Substation · 69 kV
Substation Distance
0.08 km
Operator
San Diego Gas & Electric
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
CPELCAJN_7_B1
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
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Last updated 2026-03-14
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