Lead Story Aug 1, 2026 In Pictures: Tesla secures 90% of 509 MW Arizona solar-plus-storage project output A visual look at Tesla secures 90% of 509 MW Arizona solar-plus-storage project output. Sarah Mitchell
Analysis Tesla secures 90% of 509 MW Arizona solar-plus-storage project output Tesla has signed a long-term agreement to purchase 90% of the output from Project Sterling, a 509 MW solar and 360 MW battery plant in Arizona, expected online by 2028. This marks Tesla's second large solar PPA in a day, reflecting its urgent need for clean power to support AI data centers and growing operations. Sarah Mitchell Jul 28, 2026