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Wind energy

Wind energy is acquired through the use of wind turbines. These are large rotating machines that convert the kinetic energy of wind into mechanical energies, like electricity. As early as 200 B.C., wind machines were being used in Persia for the purpose of grinding grain. The first windmill being used for electricity came about in 1887 in Scotland. Its purpose was to power a battery charging machine.

Windmills today still focus on grain-grinding and water pumping, while wind turbines are more focused on harvesting wind energy to create electricity. A group of wind turbines working together constitute a wind farm. Large scale wind farms are connected to an electrical grid, while single turbines often produce energy in isolated locations.

Wind energy is a plentiful, renewable, and clean resource that is available all over the planet. When electricity from wind power supplants electricity derived from fossil-fuels, it reduces the amount green gas emissions. Because of the variables involved in acquiring wind power, using it to supply a large fraction of total demand presents extra costs. When it is utilized for a low proportion of total demand, the intermittency is not such an issue. Even in the heavier scenario, however, the costs remain modest.

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