arnav jain 5c. what is alternative energy? solar wind geothermal

Alternative EnergyArnav Jain 5c

What is Alternative Energy?• Solar• Wind • Geothermal

SolarSolar energy is powered by the sun. It is also

a renewable source of energy.Solar panels use this energy to create

electricity.-

Advantages of Solar EnergyNo pollution RenewableAll purpose : heating, cooking, and lighting.

Disadvantages of Solar EnergyIf there is no sun on a cloudy day, then there

is no power.Solar stations are very expensive.

WindWind energy is wind. This is also a renewable

source of energy.Wind turbines are used to convert this energy

into electricity.-

Turbine

Advantages of Wind EnergyNo pollution.Renewable.Stations can be made off shore as well as on

land.

Disadvantages of Wind EnergyIf there is no wind then there is no powerTurbines are very expensive

GeothermalGeothermal energy is basically the heat from

the earth.It is mostly hot rocks under the ground that

produce steam that powers turbines that creates electricity.

http://www.youtube.com/watch?v=-ajqiPe_9Ko

Advantages of Geothermal EnergyIf used in the correct way then there is no

pollutionStations are self sufficient energy wiseThe stations do not harm landscape as the

stations are very small

Disadvantages of Geothermal EnergyIf used in the incorrect way then can leave

areas polluted as it may release harmful gases

Stations are prone to running out of steam

Thank you for Watching