H2scan BSS Catalog 2025 - Flipbook - Page 27
Managing Hydrogen
Risk in Battery Systems:
BEST PRACTICES FROM IEEE AND FIRE CODES
Abstract
Jeff Donato
H2scan
Valencia, California, USA
jdonato@h2scan.com
90000266
Energy storage systems (ESS) utilizing VRLA, VLA and Ni-Cad batteries
present a potential safety hazard due to hydrogen gas generation during
normal operation and increased production during charging or abnormal
conditions. This paper explores industry best practices and regulations
for mitigating this risk.
Following established standards like IEEE 1635/ASHRAE 21, we discuss
two main approaches: demonstrating hydrogen evolution of the battery
and ensuring continuous ventilation. The paper analyzes the advantages
of hydrogen monitoring systems, which activate ventilation only when
necessary, promoting energy ef昀椀ciency compared to continuous
ventilation.
This paper provides valuable insights for personnel involved in the
design, operation and maintenance of ESS facilities, emphasizing
the crucial balance between safety and operational ef昀椀ciency, when
managing hydrogen risk in battery storage systems.
pg.27
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