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FDNY Certificate of Approval requirements for battery energy storage systems in New York City with NYC skyline background
Regulations

TM-2 for BESS in NYC: FDNY COA Requirements

TM-2 is the FDNY application form used to request a Certificate of Approval for battery energy storage systems in New York City. This guide explains how TM-2, COA, TM-1, DOB review, UL testing, installation categories, and site approvals fit together, and why documented product safety affects NYC BESS deployment.

Indoor lithium-ion battery storage system installed with EV charging infrastructure and integrated electrical equipment.
Safety

How to Safely Install Indoor Lithium-Ion Battery Energy Storage Systems

Indoor lithium-ion battery systems create unique fire, thermal runaway, and gas management challenges inside occupied structures. This blog explains how modern indoor BESS installations use ventilation design, propagation prevention, thermal management, and immersion cooling architectures to improve deployment safety.

Solar farm and battery energy storage system installation illustrating safe solar and energy storage deployment for local governments.
Regulations

How Local Governments Can Enable Safe Solar and Energy Storage

Battery storage projects often stall because local governments lack clear permitting and safety standards. This guide explains how cities and counties can enable safer solar + storage deployment through tiered BESS ordinances, predictable review timelines, fire propagation prevention requirements, and coordinated emergency response planning.

Battery energy storage facility with EticaAG container protected by a transparent safety dome, titled “Battery Energy Storage Safety: From ‘Let It Burn’ to Fire Prevention.”
Safety

Battery Energy Storage Safety: From “Let It Burn” to Fire Prevention

Battery storage is moving closer to communities, yet safety strategies still rely on a “let it burn” approach. That model accepts failure instead of stopping it. Prevention-first technologies like immersion cooling and gas neutralization stop thermal runaway propagation and eliminate toxic emissions, redefining what safe, community-ready BESS looks like.

UL 9540 battery energy storage system installed outside a commercial building in a parking area, featuring an EticaAG containerized unit with LiquidShield technology.
Regulations

What Is UL 9540 for Battery Energy Storage Systems?

UL 9540 certification determines whether a battery energy storage system can be safely deployed by evaluating the entire system, not just individual components. It integrates fire testing, battery safety testing, and system-level performance to assess real-world risk, compliance, and how systems behave under both normal and failure conditions.

UL 9540A thermal runaway testing for battery energy storage systems with EticaAG BESS installation
Regulations

What is UL 9540A Thermal Runaway Testing for Battery Energy Storage Systems?

UL 9540A defines how battery energy storage systems are evaluated during thermal runaway events, providing the data that drives safety, design, and permitting decisions. This guide explains how the test works, why it matters, and what the latest 2026 updates mean for modern BESS deployments.

News

EticaAG Completes the First UL 9540A Thermal Runaway Propagation Testing for an Immersion-Cooled Battery Energy Storage System

EticaAG has completed the battery energy storage industry’s first UL 9540A thermal runaway propagation testing for an immersion-cooled battery system. Pre-test trials showed thermal runaway could not be induced with immersion cooling active, requiring removal of the dielectric fluid to generate propagation data for the official UL 9540A procedure used in permitting and safety evaluations.

Battery Energy Storage Power Farm with Solar and Wind using safety standards like UL 9540 and NFPA 855
Safety

Safety Standards & Certifications for Battery Energy Storage Systems (BESS)

Safety is crucial for Battery Energy Storage Systems (BESS). Explore key standards like UL 9540 and NFPA 855, addressing risks like thermal runaway and fire hazards. Discover how innovations like EticaAG’s immersion cooling technology enhance safety, prevent fire propagation, and improve system efficiency, ensuring a reliable, sustainable future for energy storage solutions.