Let me recommend you to hear what the Deputy Mayor of Barcelona, Antoni Vives, explained some days ago at the Global Clean Energy Forum, organized by the International Herald Tribune in Barcelona. That is what he said

– “That is my vision of Barcelona: If I have an island of houses able to produce energy in the roof (with sun and wind) that goes down and charges my car and gives light to homes… But we need efficient networks and we still don’t have it. We want Barcelona to be the first city to do that in very short run but we have to do it with other cities and with the industry”.