Abstract
Due to the increased air pollution values and due the fear for the conventional energy sources deployment, more importance has been given to the clean and renewable energy sources in the last years. The paper presents a comparison of the alternative energy sources: solar- wind and biomass energy and their hourly and latitude efficiency (45-50° lat N). The alternatives are theoretical assessed under several aspects. For each aspect considered the advantages and the disadvantages are shown. The research starts from proofing the potential and the feasibility offered by each source this also treated from the renewability point of view. The study concludes with assumptions and recommendations for the future.
Keywords: Renewable energy, efficiency, potential, feasibility study, comparison