Renewable Energies

Renewable energy sources

The renewable sources of energy derived from solar radiation are: hydropower, biomass, wind power, solar heat, solar thermal and photovoltaic electricity, geothermal energy and ambient heat for heat pumps. more >>

Bioenergy

Biomass is one of the most important renewable energy sources. There are many different kinds of biomass to be used for energy production. more >>

Thermal Solar Energy

There are two different ways to use solar energy. One way is hot water production, space heating and thermal electricity production using solar collectors. Solar heat is competitive in many cases for practical application. The technologies range from simple systems (collectors for hot water) to high tech systems (thermal electricity). more >>

Photovoltaics

The possibility to use solar energy to produce electrical energy, is discussed, including the physical and engineering principles applied. more >>

Wind energy

The wind conditions at a site determine whether wind energy may be a viable option or not. more >>

Geothermal energy

Hydro-geological basics and geophysical aspects of well drilling as well as the technological appliances for geothermal exploitation and related marketing issues. more >>

Renewables applications

Examples of applications in households and buildings and in the industry. more >>