The modern industrial societies costume gob of energy. Nowadays lots are worrying about the depletion of the energy spares. That’s why they are looking for thy way to save the means.

From the population of the world only 12.5% lives in the richest countries as the USA, Canada, Japan, or West Europe, although most of the available energy (60%) is expended here. Accordingly the 87.5% of the population has only the 40% of the used energy.

These countries can not pay enough money to victual, clothe and educate there populace. Most of the energy comes from fossil firings –stone coal, crude oil, and natural gas. They contain plants’, and animals’ fossils (fossil remains), that’s the reason of their name (fossil firings).
	Nowadays this kind of energy sources store decreases malignly. The most poor countries population out and away uses renewable energy sources, for example they fire up with wood and excrement. However these are not enough to serve the increasing population of the world, because the population increases with approximately 90 million people a year..

There are other, almost illimitable energy sources in high amplitude. Our urgent task is to find the solution to use these renewable energy sources ere we run out of fossil energy sources. In the followings we will present these sourcese of energy, their use and evertything about them.