Tesla has signed two large power purchase agreements that will supply its operations with renewable electricity for years. One deal with Zelestra covers the full output of a 140 MWac solar project in Texas, set to start construction in 2027 and go online in 2029. The other with ContourGlobal covers about 1 TWh per year from Project Sterling in Arizona, a hybrid solar-plus-storage facility with 450 MWac of solar and a 360 MW, 1.4 GWh battery system. That battery will store daytime solar and dispatch it during peak hours, improving grid reliability. These PPAs reflect a broader trend: companies are locking in clean power to meet rising demand from manufacturing, AI, and data centers. Tesla's energy storage division is also growing fast, with a record 13.5 GWh of battery deployments in its latest quarter. The projects show how corporate renewable procurement is shifting toward firm, dispatchable power rather than just plain solar or wind.
