Thank you for the explains @thomas_neemann. Now I begin to understand better.
Do you plan to use only one kite, for simplicity, generating both lift (upward force) and drag (horizontal force) such like a parasail-like, or more simply by modifying the spinnaker bridle in order to provide some lift?
Schleppdrachen?
Vorsegel?
It more or less reminds me of the experiments I tried using some kind of parachute. But I did not go as far as you, and by far: there is no generator…, but each anchor is a dog leash comprising a spring, working in such a way that the spring is tensioned during gusts and released during lulls.