VIDEO: Arizona is currently home to about 100 solar farms, with several of those massive facilities operating right here in Yuma. While clean energy continues to expand across the region, fire safety experts warn that though solar-related fires are rare, they present intense, highly volatile hazards that can take days to control when they do ignite.
Just across the Arizona-California state line, firefighters battled a massive blaze Wednesday at the Mount Signal One Solar Plant. Local crews say fighting these unique electrical and chemical fires requires entirely different tactics compared to traditional structure blazes.
“Fires when they involve hazardous materials basically force us to slow down our stride,” said Cedric Cesena of the Imperial County Fire Department. “We have to ensure we are talking and looking with the technical experts who have the technical references that we can use.”
Many solar installations utilize lithium-ion batteries to store vast amounts of electricity. While highly efficient, that concentrated energy can become unstable. According to firefighters, these thermal runaway events can reach temperatures of up to 3,600 degrees Fahrenheit.
Lithium-ion battery failures have been blamed for a growing list of emergencies nationally, including golf cart, garage, car, airplane, and commercial building fires. When these chemical liquids are involved in a blaze, conventional firefighting methods do not work.
KTVK-TV CBS 3 & KPHO-TV CBS 5 Phoenix (AZ Family)
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