In the UK an average of 1 KWh of the suns energy hits every metre squared each day
1.3% of the World's deserts
Assuming a 10% efficiency of harnessing the suns energy and turning it into electricity, roughly 1.3% of the World's deserts would need be used in order to provide current world demand of electricity.
Three ways of producing electricity from the Sun
- Focusing light to boil water and drive a turbine
- Grow plants and burn them to drive a turbine
- Photovoltaic cells
