Please, the power company says, don’t share the love. Keep your metallic balloon safely tied down or attached to weights, and when you’re done with it, puncture it to release the helium rather than letting it escape to the sky.
If you do have a balloon that becomes entangled in a power line, Pepco says, don’t try to retrieve it. Instead, call your power company. Pepco can be reached at 877-737-2662.