When Pacific Gas & Electric Company neglected to trim trees that had grown branches into their high power lines, their system caused the world record overvoltage of any power system so far, of 90 minutes in East Palo Alto California on August 25, 2011. The overvoltage caused television sets to catch fire and were thrown out the front doors, exploded light bulbs, fried computers, destroyed surge protectors, blew up the Smart meters, and sparks shot out of wall outlets. The overvoltage only ended when the Smart meters blew up, or after 90 minutes when the power was physically cut. The incident was not reported by PG&E to the California PUC, only that there was a day-long "outage" while the exploded system components were being restored.