The force of the crash knocked down wires onto Morningstar Road in the Mariners Harbor section.
At least two poles have been toppled, sending wires onto the street.
Police have the street blocked off. Over 70 customers had their power knocked out.
The power lines fell onto the food cart, which had propane tanks on board for cooking. The FDNY removed the tanks.
Con Ed crews are on the scene to repair the damage. There is no word on when power will be restored.