Par electronics System
Alternative energy sources are far less polluting than traditional fuels, although they may have other drawbacks. One source of alternative energy is the sun. The Earth is bathed in huge amounts of the sun's energy. We can use this solar energy directly, simply by capturing sunlight. Solar energy is our oldest energy source Humans have always used the sun's energy directly (eg, for drying clothes and foodstuffs), as well as indirectly to power the agriculture that supplies us with food. This century we have started to use solar energy more effectively, and it is likely that we'll increase its use in the future.
It's reliable, free and clean....