well, wind is free, but u have to biuld turbines, which are NOT free, so not really...
Solar and wind energy are the only 'cheap' energy there.
Wnd energy is free
wind energy is only air but wind mills and wind turbins are about 5m to 10m dollars... so yes they are expensive.
the wind
Trees get their energy to grow from respiration and sunshine. The sound energy of 'rustling' and the kinetic energy of leaves in motion is the energy drawn from the wind.
The only thing that limits the abundance of wind energy is not educating the public how effective and cheap it is in the long run. It can be difficult to convince tax payers to pay for installation of multiple windmills and energy capture from the windmills.
When burned for energy,coal is a major pollutant.The reason coal is still burned to day is because it is a cheap source of energy as to solar or wind.
The conversion of wind energy into a useful form of energy is called the WIND... ENERGY. Have to add the ellipsis for it to work.
no but yes. it is the most cheap form of electricity but is way more money then buying an old power plant.
Heterotrophs obtain energy from foods they consume, and Autotrophs obtain energy by the sun light
Yes, wind energy is generated from the kinetic energy of the wind. This energy can be harnessed using wind turbines to generate electricity.
Wind turbines (in a wind farm) convert kinetic energy of the wind into electrical energy. Not to be confused with wind mills - that turn the kinetic energy of the wind into mechanical energy.