Which statement best describes hazards associated with ESS?

• A. Thermal runaway, fire, explosion risks, chemical leaks, and environmental impact.
• B. Solar glare hazards.
• C. No hazards exist with ESS.
• D. Only physical injury risk.

Answer: (A)

Energy storage systems bring hazards from their high energy density and chemical contents, not just the risk of physical injury. When something goes wrong—like overheating, internal damage, or a fault in the system—the cells can undergo thermal runaway, releasing intense heat that can ignite a fire or even cause an explosion. The electrolytes and other chemicals inside the batteries can leak or vent toxic or corrosive fumes, creating chemical hazards for anyone nearby and potentially damaging surroundings. All of this can lead to environmental impact if leaks reach soil or water, and it can create broad, cascading threats across a facility.

That’s why listing thermal runaway along with fire and explosion risks, chemical leaks, and environmental impact best describes ESS hazards. Options focusing on solar glare, claiming there are no hazards, or limiting hazards to only physical injuries miss these multi-layered dangers.