Bilgen, Selçuk; Keles, Sedat; Kaygusuz, Abdullah; … - In: Renewable and Sustainable Energy Reviews 12 (2008) 2, pp. 372-396
Renewable energy sources have been important for humans since the beginning of civilization. For centuries and in many ways, biomass has been used for heating and cooking. Many centuries ago mankind was already utilizing the clearly visible power of water for mechanical drive purposes, as was...