Windmills produce electricity by electromagnetic induction, the process in which the movement of magnets in a magnetic field generates electricity. In a windmill, when wind moves the blades of the windmill that move the rotor, the rotor rotates a shaft that holds magnets in the magnetic field of the generator, generating alternating current that is sent along power lines.Continue Reading
The Department of Energy holds that wind turbines provide an alternative and clean energy source to fossil fuels. Wind energy is abundant, renewable and one of the least expensive energy technologies. It can revitalize rural communities because wind farms are built in the country where wind is unhindered, and farmers can still plant crops on the land because the turbines do not take up much space. Windustry claims that wind energy can produce up to one-fifth of the nation's energy. The Wind Energy Foundation has stated that in 2013, Colorado generated almost 14 percent of its electricity using its 1,530 wind turbines with a total capacity of 2,332 megawatts.
According to How Stuff Works, people have been using wind energy since 3,000 B.C. in sailboats. One thousand years later, windmills came into being for grinding grain. The windmill was first used to produce electricity in the 1930s.Learn more about Electricity
Magnetic power generators have a small wheel in between magnets that are aligned in such a manner that they repel each other. The opposing forces of the magnets cause the wheel to have an unending rotating motion, powering up the generator and consequently producing energy.Full Answer >
An electric motor works by using magnets along with coils of wire to transfer electric energy into kinetic energy. The coil is positioned between two magnetic poles; when current passes through the coil, it experiences force in opposite directions caused by the poles of the magnet, and this causes movement.Full Answer >
Windmill generators work by capturing the kinetic energy of blowing air and converting it to electric energy using copper coils and magnets. The wind pushes the wind turbine blades, which turn an axle. The axle, usually connected through a gearbox, turns an iron rod wrapped in copper coils and surrounded by magnets. Moving the copper wire inside the magnetic field causes electricity to flow through the wires.Full Answer >
Electromagnetic induction is the phenomenon of using a magnet to create, or induce, a magnetic field in a conductor while simultaneously dislodging free electrons within it. This produces a flow of current and a rising and collapsing magnetic field around the conductor, which is the opposite polarity to that of the magnet from which it was induced.Full Answer >