Wind power in Denmark: 5000 turbines at work | Photo: CGP Grey/Creative Commons

Denmark produced 140% of its electricity needs through wind power.

On the 10th July 2015, the country enjoyed an unusually windy day and produced more energy than its domestic consumption. As a result, Denmark's wind turbines exported 40% of the surplus power to neighbours.

German and Norway received 80% of the excess wind energy, while Sweden took the 20% left. Denmark has more than 5,000 wind turbines across the country and in offshore platforms.

The Danish government supports wind power. The local authorities believe that green sources will produce half of its energy needs before 2020, and 84% by 2035.

"It shows that a world powered 100% by renewable energy is no fantasy. Wind energy and renewables can be a solution to decarbonization - and also security of supply at times of high demand," Oliver Joy, a member of the European Wind Energy Association, told The Guardian.

At the end of 2014, Denmark had a wind power capacity of 4,792 MW. The Nordic country's biggest wind turbine manufacturers with local production facilities are Vestas and Siemens Wind Power.