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8 October 2026
Sourcechange
Power Infrastructure & Battery Technology

Market Signal: the battery is what Tesla is actually buying

ContourGlobal broke ground on a 1.4GWh Arizona battery and solar plant, with Tesla taking 90% of its output.

ContourGlobal broke ground on Project Sterling in Mohave County, Arizona on October 7: 450MWac of solar and 360MW/1.4GWh of LFP storage across more than 2,000 acres. Tesla takes 90% of the output under a PPA covering more than 1TWh a year.

The signal The plant is engineered to deliver power for up to 16 hours a day, so most of what Tesla is paying for arrives after sunset. That makes the 1.4GWh battery the asset the contract depends on.

Hiring Sterling averages roughly 400 workers through 2028 on a remote desert site with more than 300 battery containers to install and commission. Construction Managers, BESS Commissioning Engineers, and Substation Leads with WECC experience sit on the critical path.

View the original post on LinkedIn →