Power Outages from Wayward Balloons Can Put the Damper on Commencement Fun OAKLAND, Calif., May 22, 2024 /PRNewswire/ -- It is graduation season in California and Pacific Gas and Electric Company (PG&E) has an important reminder for the public about the safety risks associated with helium-filled metallic balloons. If your graduation celebration involves balloons, make sure they are secured with a weight. Otherwise, they can float away and come into contact with overhead power lines, causing a public safety ...