Wind Power:

Wind farms are indeed a good form of investment, where the best returns can come from buying turbines, installation of required equipment and leveraging the variations in atmospheric pressure. Although a wind turbine cannot capture all of the energy as the theoretical limit is around 60 per cent of the energy, it can still be more productive than solar energy through photo-voltaic panels. As a matter of fact, only 1% of world electricity demand in fulfilled by wind power. 20% of Danish electricity is generated using this method, whereas the US and Spain are adding large amount of wind capacity. The European Union which uses only 4% of wind power can increase it to 13% by 2020.