Renewable Energy Resources, Challenges and Applications

Energy demand in the world is nowadays growing further out of limits ofinstallable generation capacity. Therefore, future energy demands should be metand improved efficiently and securely. Energy solutions should be supported by utilizing renewable energy sources. At present, the contribution of renewable energyto the world primary energy is not high to meet the primary energy and electricitysupplies. Both developed and developing nations will necessarily continue to relyon fossil fuels in the coming decades. In developing countries, the situation is moreinconvenient than that for developed countries. Many developing countries havebeen apparently trying to restructure their energy sectors. It seems that it is difficult to realize innovations. Cost, market share and policy are the main barriers forthe development of renewable energy. In the strategy plans of many countries, thesustainable development in relation to the parameters such as economic, social andindustrial is supported by their energy policies. New enabling technologies relatedto renewable energies will also help to reduce environmental costs, and thus theenergy systems will be operated as both securely and economically without environmental problems. New renewable energy markets are surely required in both thewholesale and retail markets.