It  is the most precious commodity in Africa, the sun. Their energy will be better exploited by solar systems, says Eritrean Tekle Haile, Managing Director and Project Manager "Solar Afropa". He has been living in Switzerland for over 30 years. With the organization he wants to show his compatriots in Eritrea, how they can use the solar energy. In his workshop in Herblingen, he tinkers on a variety of solar-powered things. Be it a fan or a dollhouse. He then brings these to Eritrea and shows people how they work.