SESSIONS

NFPA 855 2026 – The latest in BESS Fire Safety Requirements

NFPA 855 is the Global Standard for the Installation of Stationary Energy Storage Systems (ESS). It provides mandatory safety requirements for the entire lifecycle of energy storage systems, from design and construction to decommissioning. The 2026 version of NFPA 855 represents a major evolution in BESS safety. This presentation shares the key changes in the 2026 NFPA 855, representing the latest best practices. This presentation will cover topics such as large-scale fire testing, hazard mitigation analysis, survivability and reliability, explosion control, backup power, and emergency response.

PRESENTER(S)
Nicholas Bartlett

Nicholas Bartlett

Senior Fire Protection Engineer, Atar Fire

Nicholas Bartlett, P.E. is an AHJ and licensed Fire Protection Engineer/ Professional Engineer throughout the United States with 18 years’ experience in general fire protection code consulting and code enforcement, energy storage systems, hydrogen technologies, fire protection design, hazardous materials, fire modeling and smoke control, and wildland fire.

Nick’s professional Fire Protection Engineering experience spans public and private sectors, with previous responsibilities including Fire Protection Engineer with Underwriters Laboratories (UL) testing/Listing fire protection products; Fire Protection Engineer with Jensen Hughes performing fire modeling, smoke control design/commissioning, and code consulting; and AHJ/Senior Fire Protection Engineer at a large laboratory in California enforcing all aspects of IFC and NFPA codes and standards with significant emphasis on hazardous materials and new construction. Current service is as Fire Marshal/AHJ at a laboratory focusing on renewable energy technologies, with emphasis on energy storage systems, hydrogen technologies, photovoltaic, wind, semiconductor, and more.

Nick is involved with the code development process in the International Fire Code (IFC), National Fire Protection Association (NFPA), and UL Standards committees. Committee work includes serving as technical member of NFPA 855, Standard for the Installation of Stationary Energy Storage Systems, NFPA 800, Battery Code, UL 9540, Energy Storage Systems, UL 1487, Battery Containment Enclosures, UL 1973, Stationary and Motive Batteries, CSA C801, Detection and Mitigation Systems for Battery Failure Events, and NFPA 1140, Standard for Wildland Fire Protection.

Nick has experience with batteries of many sizes and types including but not limited to flow batteries, various chemistries of lithium-ion batteries, nickel hydrogen batteries, second life batteries, PV integrated batteries, and more. This includes review and approval as Authority Having Jurisdiction for all aspects of energy storage system design in accordance with applicable codes and standards. Nick has experience with fire modeling of energy storage system combustible concentration reduction systems utilizing Fire Dynamics Simulator.

Nick is deeply integrated in current energy storage system code development as a member of the NFPA 855 & NFPA 800 technical committees and UL 1487/1973/9540/9540A technical committees. Nick is the instructor of a full day NFPA 855 course, having instructed nearly to 1,000 AHJs, engineers, and other professionals in the USA and abroad.

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