http://www.nbcphiladelphia.com/news/loc ... 01371.html
Firefighters had to pull back at some points because the fully-charged solar panels posed the risk of electrocution.
"With all that power and energy up there, I can't jeopardize a guy’s life for that,” said Holt.
Officials say the fire was focused between the trusses and solar panels on the roof. There have been two explosions so far and at least one wall collapsed.
In 2010, the company installed more than 7,000 solar power modules, which officials claimed would reduce the facility's energy use by nearly 20 percent. Buildings with solar power systems “can present a variety of significant hazards" for firefighters including poor air quality and electrocution, according to the National Fire Protection Association.