In 2050, the energy mix will be a real alternative to oil : thermal, windmill, solar and tidal energies will have attained highly effective production levels. New distribution networks, in which the consumer will take on a new role, will de-compartmentalize centralized systems. Special guest appearance by Bertrand Piccard, the pilot who made history when he completed the first 120-hour flight over the Pacific Ocean aboard the Solar Impulse, an airplane powered solely by solar energy.