Basic principle: Energy generation on the ground
View from groundstation flying figure eights
View from the side
A kite that flies figure eights or circles pulls much harder on the line than one that stays steady. This enables us to generate electricity by letting the kite line be reeled out, thus turning the generator. By using the elevators we can steer the kite into gliding against the wind towards the ground station. The line goes loose and is reeled in by the generator/motor with very little power. This reel-out-reel-in operation can be done automatically and continuously for days without landing. In case of a bad weather forecast (hail, snow, sand storm), the kite can land and launch automatically.
60PWh of electricity per year would be the basis to make the world economy in its current size (including all unneccessary comfort) independent from fossil fuels. We are aiming at providing this enormous amount of electricity at a cost of 0.1 ct per kWh with the following device:
Technical Kite Description
How we fly Figure Eights
A large version should generate 1 MW of electricity, or 8GWh per year, meaning about 8 million of them will be needed globally. (The number of globally installed wind turbines in 2019 was just 0.3 % of what's cumulatively neccessary. source)