Summary Focus on solar energy : ages 11-14
The use of the free and unlimited energy provided by the sun is being developed around the world. This energy is transformed directly into electricity by dark blue photovoltaic panels, arranged in thousands in huge land-based parks or fixed in small numbers on the roof of a house. The sun's energy can also be converted into heat, used to turn turbines or to run a solar water heater or oven. It is well suited for local use, for example in villages on the African continent. Here is an overview of this renewable and carbon-free energy.