Germany and Spain are leading the world in producing energy from the sun. The potential of solar energy is enormous. However, the development of solar infrastructure to harvest energy from the sun is still too slow. From the AFP.

Last year the world production of photovoltaic models represented a surface of 40 square kilometres (16 square miles) while meeting the electrical consumption of countries like France or Germany would require 5,000 square kilometres, he said.

Under current scenarios, photovoltaic models will represent about 1,000 square kilometres by 2020 accounting for about only 3.0 percent of energy needs in the 27-member European Union, he added.