Today’s wind turbines are mounted on tall towers – at
least 100 feet high – to catch the wind’s energy more
efficiently. Propeller-like blades on a shaft form a simple rotor
– new models have even been designed to protect birds. As
the wind blows the rotor, the turning shaft activates a generator
to make electricity.
Electricity providers often use wind farms –
many wind turbines built close together – to supply power
to their customers. However, the providers work hard to balance
the need for electricity while preserving the scenic vistas in coastal
or mountain regions. |