The commercial starts off with the image of a natural landscape at dusk. Suddenly we see a little lamp light up in the distance. Next to it another lights up and then another. We slowly discover a never-ending thread of different household lamps that are lighting up all over the forest. Then we see some fans turned on in a field of wheat, playing over the ears; irons with jets of steam amongst geysers and cooker burners lighting up a glacier. Finally we see a sign that says: "Iberdrola. Nature's energy in you home".