APS battery energy storage facility explosion injures four firefighters; industry investigates

Last Friday evening in Surprise, Arizona a storage facility owned by Arizona Public Service (APS) exploded, injuring four firefighters. Reporter for azfamily.com, Maria Hechanova, visited the scene yesterday and reported that the explosion happened while four hazmat firefighters from Peoria were working to extinguish a battery fire at the facility.
Source: Renewable Energy