http://www.fireengineering.com/news...s-it-can-work-around-warehouse-fire.html

If you look with Google it is well covered with panels. The firefighters were worried they would be electrocuted if they went up to ventilate the roof. On a large bldg like this it is important to cut a hole or trench cut the roof to contain the fire to one area. Having been in the fire service as well as an electrician, I would have gone on the roof, but I can understand firefighters not wanting to get near those panels. With as many panels as there were, during a sunny day, lots of volts & amps.and no meter to pull to shut it all down.