Provision of electric power/air conditioning/compressed air which are required by aircraft on the ground and design, execution, operation, management, etc. of power supply facilities.
The major way of the aerial power supply facility is called stationary type GPU.*1
This is done by installing a power supply factory in the airport, with power receiving and distributing facilities and heat-source supply facilities, run by commercial electric power. Then power and hot/cold water are supplied to the apron device.*2
The apron devise will convert the electricity to be used by aircraft, and provide air conditioning to the aircraft, using the hot/cold water.
*1Ground Power Unit. A facility to supply air conditioning and electricity, to the aircraft on the ground.
*2Convert commercial power supply to the electricity for the aircraft and provide air conditioning by using hot/cold water to the aircraft.