Rigid kite (airborne wind energy)

A rigid kite for airborne wind energy (AWE), also called a rigid-wing or fixed-wing airborne wind energy system, is a tethered, aircraft-like wing that is flown autonomously in fast crosswind loops or figure-of-eight patterns to harvest wind energy at altitudes that are generally inaccessible to conventional tower-mounted wind turbines at fraction of total material usage. Unlike soft-wing (fabric) kites, rigid kites are built from stiff materials such as fibre-reinforced composites.

Source: Wikipedia — Rigid kite (airborne wind energy) (CC BY-SA 4.0)