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sun. lights and heats the earth. thermal energy warms. photovoltaic power stations. chlorophill photosyntesis. water-earth-air. food and O2 for all livings beings. water cycle. wind(wind power). athmosferic fenomena. animals dead =fossilitation. Power stations. Solar Energy. - PowerPoint PPT Presentation
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A solar pannel is made of specia cells which have two layers
One of these layers has far more electrons than the other
When sunlight hits the cell,the electrons become excited
They start to jump over to the layers with more electons
This flow of electrons is what we call electricity,and it can be harnessed to power anything from calculators to
cars
Rainwater seeps into the ground and near molten rocks
The water draws heat from the molten rocks and becomes so hot that it turns
Steam is relased though wells of drilled into the ground and channelled past a turbine
Like all steam turbine generators the force the steam is used to turn the turbine blades,which spin the generator and and produce electricity.
After it leaves the turbine the water is pumped back underground to be heated
again.Electricity is sent via pylons and cables to homes around the country.