Four Firefighters Injured in Lithium-Ion Battery Energy Storage System Explosion - Arizona

Funded by the U.S. Department of Homeland Security (DHS) and Federal Emergency Management Agency (FEMA) Assistance to Firefighters Grant Program, "Four Firefighters Injured In Lithium-Ion Battery Energy Storage System Explosion - Arizona" is the first report issued as part of the Study of Firefighter Line of Duty Injuries and Near Misses. This report details a deflagration incident at a 2.16 MWh lithium-ion battery energy storage system (ESS) facility in Surprise, Ariz. It provides a detailed technical account of the explosion and fire service response, along with recommendations on how to improve codes, standards, and emergency response training to better protect first responders, maintenance personnel and nearby communities.