Wind EnergyBy: Nikitha and Shikha

What is Wind Energy?A source of energy that is driven by

the force of wind. Wind is caused by huge convection

currents in the Earth's atmosphere, driven by heat energy from the Sun.

Wind energy is the fastest growing segment of all renewable energy sources.

For hundreds of years, we have been using wind as a form of energy. Windmills have been used for pumping water

RenewabilityWind is one of the easiest energy source to

renew. This is because wind is naturally occurring every day.

The best way to take advantage of the easily renewable nature of wind power as an energy source is to build turbines in places where wind occurs frequently.

Turbines catch the wind's energy with their propeller-like blades. they can be connected to a utility power grid or even combined with a photovoltaic (solar cell) system.

CostDue to improvements of wind turbines, the

cost of wind energy has decreased. Wind energy is one of the most affordable

energy resources in today’s economy.There was a decrease in cost of more than

90% since the early 1980's.

Pros to Wind EnergyFreeNever will run outClean, non-polluting, electricityNo air pollutants or greenhouse gases  No fuel to purchase and minimal

operating expenses.

Cons to Wind EnergyTechnology requires a higher initial

investment than fossil-fueled generators.Lots of noise produced by the rotor blades.Birds and bats having been killed by flying

into the rotors.Does not always blow when electricity is

needed. Wind cannot be storedGood wind sites are often located in remote

locations far from areas of electric power demand.

The Science Behind Wind EnergyWind energy is generated through the kinetic

energy found in wind is converted into mechanical power

Wind turbines are like airplane propellers that turn as wind pushes them which powers an electric generator that supplies an electric current

The power generated in then stored in batteries for later use

Waste ProductsThere are no waster products produced from

wind energyWind energy lowers greenhouse gas

emissions

Uses of Wind EnergyWind energy is used

by states/countries that can invest into it and have a good amount of wind to power cities/townsCaliforniaDenmarkGermany

Wind energy has not been in widespread use because the land that wind turbines are put on can be used for farming which leads to choosing between what is more important – food or power

General Public Accessibility