This free report provides guidance for the safe installation and use of portable/movable battery energy storage systems (BESS). Battery Energy Storage Systems, or BESS, help stabilize electrical grids by providing steady power flow despite fluctuations from inconsistent generation of renewable energy sources and other disruptions. While BESS technology is designed to bolster grid reliability, lithium battery fires at some. , thermal, and fire safety across the entire system. Re s at the cell, module, unit, and installation level. Covers fire detection and suppression, explosion control, gas de ection, ventilation, and thermal runaway. This document addresses code compliant connection and use of portable/movable BESS that are certified to the appropriate safety standards and which comply with the governing building and electrical codes. The Guidebook provides local officials with in-depth details about the permitting and. The American Clean Power Association (ACP) is the leading voice of today's multi-tech clean energy industry, representing over 800 energy storage, wind, utility-scale solar, clean hydrogen and transmission companies. ACP is committed to meeting America's national security, economic and climate.