Just heard it when i was watching the race. Our dutch commentator Olav Mol said that they were thinking about making a own energy source during Grand Prixs so that they are not dependent anymore of the energy of the organising country.
It was still very vague, and no concrete way of how to do this. Maybe windmills or solarcells and store the energy in batteries when it rains like 2day..
But interesting to follow...