The New York City Fire Department gave both TM-2 approval and a Certificate of Approval (COA) to Sungrow for its PowerTitan 2.0 battery energy storage system.

New York City is known for its strict requirements. The Fire Department’s TM-2 and COA process is required for any energy storage system installed within New York City, and includes an extensive series of fire safety evaluations, technical design reviews, and third-party test reports. Approval typically involves coordination with engineers, first responders, and fire safety authorities, making it one of the most stringent municipal certification processes in the country.

“This certification affirms that PowerTitan 2.0 meets the highest standards for fire safety and system integrity,” said Hank Wang, president of Sungrow Americas. “With power demands expected to increase dramatically in New York, we’re proud to offer customers a proven solution that is ready for immediate deployment across utility-scale storage, commercial and industrial sites, and dense urban environments.”

Sungrow PowerTitan 2.0 is ‘liquid cool’

The 5 MWh PowerTitan 2.0 pre-integrates all internal components — including the batteries, string PCSs, BMS, thermal management, and fire suppression systems — within a 20-foot container. It is the successor to the original PowerTitan 1.0, which received New York City certification in 2023.

Sungrow manages system safety with a liquid-cooled thermal management system to maintain cell-level stability, with a temperature variance of less than 2.5°C across racks. In addition, the system’s rack-level control improves system balance, performance, usable capacity and reduces mismatch during operation. A built-in automation handles coolant refilling and state-of-charge balancing, while fire protection is reinforced through arc extinguishing technology, fire-resistant partitions, and optional integrated sprinklers.

 “Our engineering team designed PowerTitan 2.0 from the ground up to deliver both performance and peace of mind,” said Bryce Laber, manager of ESS product engineering at Sungrow. “We’ve integrated safety at every level so that project developers can focus on delivering reliable energy to the grid.”

Sungrow large-scale fire test

This follows Sungrow’s successful completion of the world’s largest burn test to date of a utility-scale battery energy storage system in June 2024, conducted in partnership with national safety agencies and third-party observers. The large-scale fire test (LSFT) subjected PowerTitan 2.0 to extreme fire conditions for nearly 26 hours to validate its containment, suppression, and emergency response features.

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