Arizona · Operating
Atlas VII and IX, Arizona.
450 MW1,800 MWh
Two four-hour battery storage facilities serving California grid reliability from La Paz County, Arizona.
- Combined power
- 450 MW
- Atlas VII and Atlas IX
- Combined energy
- 1,800 MWh
- Four-hour portfolio
- Contract term
- 15 years
- Resource adequacy with SCE
- Status
- Operating
- Both facilities in operation
Two-project complex
Grid infrastructure
at portfolio scale.
Atlas VII and Atlas IX are standalone battery storage facilities in La Paz County, Arizona. Atlas VII contributes 300 MW / 1,200 MWh and Atlas IX contributes 150 MW / 600 MWh, creating a combined 450 MW / 1,800 MWh four-hour storage portfolio.
Qcells delivered the projects as EPC contractor. The facilities provide capacity and energy supporting California grid resilience through 15-year resource-adequacy contracts with Southern California Edison. Their scale allows stored energy to be dispatched when system demand and reliability needs are highest.
Technical profile
Atlas VII & IX specification
The public operating profile, organized for fast technical review.
- Location
- La Paz County, Arizona
- Western grid position
- Asset type
- Two standalone battery storage facilities
- Utility-scale BESS
- Atlas VII
- 300 MW / 1,200 MWh
- Four-hour facility
- Atlas IX
- 150 MW / 600 MWh
- Four-hour facility
- Combined scale
- 450 MW / 1,800 MWh
- Published portfolio rating
- Duration
- 4 hours
- At rated power
- EPC contractor
- Qcells
- Engineering, procurement and construction
- Resource adequacy
- 15-year SCE contracts
- California grid capacity
- Status
- Both facilities operating
- Commercially active
- Owner-operator
- TransGrid Energy
- Integrated operating platform
Location & field photography
Two facilities. One operating system.
Atlas VII & IX
La Paz County, Arizona
Atlas VII · 300 MW / 1,200 MWh
A four-hour standalone storage facility designed to provide contracted resource adequacy and dispatchable capacity.
Atlas IX · 150 MW / 600 MWh
A second four-hour facility in the La Paz County complex, operated with the same portfolio discipline and long-term SCE contract framework.
Tell us what you're building.
Capacity that shows up. Intelligence that keeps it moving.
The fastest conversations start from a situation, not a product. Tell us yours and a strategic consultant will take it from there — someone who has built this before, not a sequence of emails.
- A queue that runs years
- A market that curtails
- Land with a grid position