Overnight Solar — Plant Summary
- EIA Plant ID
- 68932
- Capacity
- 300 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries, Solar Photovoltaic
- Status
- Planned
- Location
- San Bernardino, CA
- Operating Since
- —
- Generators
- 2
- Operator
- Overnight Solar LLC
- Parent Company
- —
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Overnight Solar
PlannedBESSSolarHybridGEM: announced
Ranked #15 of 191 BESS plants in CA#85 of 837 nationally
300 MW Batteries (150 MW) + Solar Photovoltaic (150 MW) planned in San Bernardino, CA — California Independent System Operator
EIAGEM
300 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
Planned: —
Planned Operation
Location
Coordinates
35.0162, -117.3570
County
San Bernardino, CA
Nearby Plants
- Lockhart Solar PV, LLCBESS169.4 MW · 1.6 km
- Mojave Solar ProjectSolar280 MW · 1.6 km
- Lockhart ESS, LLCBESS45 MW · 1.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Overnight Solar LLC | — | — |
| Owner(s) | Overnight Solar LLC | — | — |
| Status | Planned | announced | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Overnight Solar is a 300 MW hybrid power plant located in San Bernardino County, California. The facility, owned and operated by Overnight Solar LLC, combines solar photovoltaic generation with battery storage. It consists of two generators utilizing both batteries and solar photovoltaic technologies. The plant's solar arrays employ a fixed tilt tracking system.
As a participant in the California Independent System Operator (CAISO) market, Overnight Solar contributes to grid stability within the Western Electricity Coordinating Council (WECC) region. The plant ranks as the 34th largest in California out of 112 facilities and holds the 143rd position nationally among 514 power plants. The plant's primary fuel is listed as MWH, reflecting its reliance on solar energy and battery storage.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
LCKHT1_7_N001
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (3)Beta
Regulatory·rate case
Southern California Edison seeks regulatory approval for 620MW of BESS resource adequacy
Southern California Edison (SCE) is seeking regulatory approval of resource adequacy (RA) contracts covering 620MW of BESS capacity across three projects.
Southern California Edison (operator)SCE (operator)
Energy-Storage.News·1 years ago
Grid·capacity addition
Shanghai Electric CSP starts sending overnight solar power to Dubai grid
Shanghai Electric's 700MW solar thermal and 250MW photovoltaic solar power plant in Dubai has successfully achieved grid-connected electricity generation.
Shanghai Electric (other)
SolarPACES·3 years ago
Industry·corporate
New Tesla Gigafactory picture shows new construction to double the size of the current plant
Tesla released a new picture of the 'Gigafactory 1' site in Nevada and it shows early work on 4 new sections, which should about double the size of the current...
Tesla (other)
Electrek·9 years ago
Last updated 2026-03-14
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