Arizona Public Service Co. is rolling out a program to add hundreds of megawatts of storage to its renewable power plants to extend their range beyond when the sun is shining.
The state’s largest utility said Thursday it would bring on 850 megawatts of battery storage by 2025 to bolster its solar operations in the state.
“As storage technology improves and declines in cost, we will increasingly be able to store the power of the sun cost-effectively to deliver when our customers need it,” said…



