The largest part of the kite is a high-performance wing. The wing is driven in
circles by the wind, just like the blade of a conventional wind turbine. Rotors
on the kite act like propellers on a helicopter to launch it from the ground
station. Once the kite is in flight, air moving through the rotors forces them to
rotate, driving a generator to produce electricity, which then travels down the
tether to the grid.
The tether is made of conductive wires surrounding a high strength core. The
tether connects the kite to the ground station, and transfers power and
communications between the kite and ground station in both directions.
The Ground Station
The ground station holds onto the tether, and is used as a resting place for the
energy kite when not in flight. The ground station is much smaller and easier to
install than the tower of a conventional wind turbine.