Wind power harnesses the movement of the wind to turn electrical turbines, generating power. Large windmill-like turbines with canted blades catch the wind, rotating around a central axle. This axle connects to the central rotor of an electric turbine. As the turbine spins, the interaction of copper wires and magnets creates an electrical current.Know More
Wind turbines come in two styles, horizontal and vertical. Vertical turbines look like windmills, with a horizontal axle connected to large propeller blades. These turbines must face the wind for maximum efficiency, so the head of the turbine may pivot to allow the structure to cope with unsteady wind conditions. Vertical turbines resemble eggbeater blades, with a vertical axle surrounded by two or more sail-like blades connected at the top and bottom. This design has the advantage of being omnidirectional since winds from any direction may cause the blades to move and spin the axle.
Wind power is most effective in regions that experience sustained winds for long periods, such as the Great Plains. Wind is also often coupled with solar or hydroelectric energy since calm conditions can drastically reduce the amount of electricity generated. As of 2014, some countries have begun placing wind farms on or just off their coasts, taking advantage of the nearly constant winds that blow in from ocean currents.Learn more about Electricity
Wind energy is important because it holds immense potential in supplying electricity across the world. Unlike other sources of electricity that require fuel in processing plants, wind energy generates electricity through wind, which is free. Wind is considered a native fuel that does not need to be transported or mined, eliminating two costly expenses from long-term energy expenses.Full Answer >
According to the Department of Energy, wind turbines generate electricity when the wind moves the fan blades, which are connected to an electric generator via a central shaft. As the blades turn, they turn the generator, creating an electric current.Full Answer >
A typical wind power generator produces approximately 30 percent of the theoretical maximum power it could produce on average, as reported by the European Wind Power Administration and Global Wind Energy Council. Losses of efficiency due to the mechanical action of the generator are already included in the theoretical maximum.Full Answer >
Megavolt amperes (MVA) power is a unit used for measuring apparent power. The apparent power refers to the total current and voltage in an electrical circuit. The term is preferred in descriptions of total electrical power in installations, and it captures both true and reactive power in an electrical circuit. It is the common rating used in major electrical installations, such as transformers and generators.Full Answer >