An alternative and clean energy source, wind power uses wind turbines to generate electric power. Groups of wind turbines can be located either on land or offshore and are called wind farms. Opponents of wind power claim that the turbines or wind farms ruin the aesthetic appeal of the landscape. Still, the usage of wind power has been increasing with each year.
Denmark, a windy country, has been a forerunner in the field of wind power. Denmark.dk reports that Danish countries have installed more than 90 per cent of the world's offshore wind turbines. The Danish government has made a goal of wind power generating 50 percent of the electricity system by the year 2020.