GPU (Ground Power Unit)

A Ground Power Unit (GPU) is a piece of equipment used to provide electrical power to an aircraft while it is on the ground. When planes are parked or not using their engines, they need power for systems like lighting, air conditioning, and electronic equipment. The GPU supplies this necessary electricity, allowing the aircraft to operate without starting its engines, which helps save fuel and reduce emissions. Essentially, it serves as an external power source, ensuring the aircraft can remain functional and comfortable while on the tarmac.