APS Teams with First Solar on Plant with Battery Storage Updated On Tue, Feb 13th, 2018 by Saurenergy Arizona is considered a big solar state with close to 300 days of sunshine annually. Arizona’s largest electric utility is teaming with one of the leading US-based solar panel makers to develop a solar power field matched with battery storage. Arizona Public Service Co. and Tempe-based First Solar have announced they will build the solar […] Read more