Tesla Signs PPA for ContourGlobal's 509 MW Project Sterling Solar-Plus-Storage in Arizona
- Capacity
- 509 MW
- Location
- Arizona
- Developer
- ContourGlobal
- Off-taker / Utility
- Tesla
- Source
- Solar Power World →
Key Facts
Tesla has signed a power purchase agreement with ContourGlobal for the output of Project Sterling, a 509 MW solar project paired with 1.4 GWh of battery energy storage in Arizona.
Project details
Construction on Project Sterling began in 2025, and ContourGlobal is targeting commercial operation in 2028. The scale of the paired storage system positions the project to help firm output for its offtaker across peak demand periods.
What's next
Terms of the power purchase agreement, including its length and pricing, were not disclosed. The project adds to a wave of large-load technology buyers directly contracting utility-scale solar-plus-storage capacity in the Southwest.
This brief summarizes public reporting and does not republish the original article in full. Read the complete story at Solar Power World.