The sun – a unique source of energy
The sun's energy is (almost) limitless. Around 5 billion years will pass before its hydrogen supply is used up. And: Its energy potential is extremely high. The amount of energy reaching the earth is about 5,000 times higher than the current energy demand of the entire world population.
- As an energy supplier, the sun is inexhaustible
- Its energy is free
- The sun is an environmentally friendly source of energy
- It can be used worldwide
All about solar energy
Solar power - what do I need to know?
Photovoltaics systems use light from the sun - and diffuse light - to generate electricity that is fed directly into the public power grid. In the process, the solar modules mounted on the roof capture the light energy and convert it into electrical energy.
The direct solar power that is generated in that way reaches the inverter via the main line, where it is converted into alternating current - the type of electricity used in our public power network. The amount of electricity produced is continuously measured via a dedicated feed-in meter and the electric current is fed into the public grid. In the return flow, this electricity is also available for the producer itself.
With the Renewable Energy Sources Act (EEG) of April 1, 2000, the German government regulates the purchase and remuneration of electricity from renewable energy sources.
Current legal text of the EEG (German)