A sustainable solution

The sun could be the solution to all energy supply problems - already now and in future!

The sun radiates many times more energy down to earth than we require: Every day, without emissions and completely free. We just have to find ways of using this energy.

In principle all renewable energy sources originate from the sun. The sun makes the wind blow, causes rain to fall and heats our planet.

The term "renewable" energy means that this energy is not taken from a finite stock but is generated in a cyclical process. Scientists talk of "sustainability" in this context.

This can be explained very graphic taking wood (one type of biomass) as an example: The sun causes a tree to grow and this tree produces oxygen and binds carbon dioxide. To burn the wood we need oxygen and we get carbon dioxide as a result. Over all these processes are balanced but we gained thermal energy. Virtually the tree has stored solar energy for us.

For every renewable energy source there is such a balanced cyclical process. This is the decisive benefit of renewable energy sources!

On the following pages we want to present you some of the most important technologies for renewable energy sources. They do not compete but supplement each other. Also today electric power is generated partly from coal, petroleum, natural gas or uranium.

An even greater number of options is characteristic for the renewable energy sources. Hydrogen is the perfect connection between these options!