New challenges in RES support

Abstract

In recent years, renewable energy sources (RES) enormously increased their contribution to energy mix of EU member states and esp. power generation based on RES utilization enormously expanded. Feed-in tariff scheme has been widely used instrument of support till now. Massive growth of RES power generation in combination with RES support scheme has significant impact to the power market and the effectiveness of its functioning. Present way of RES support has sheltered the RES from market price signals and they were and still they are operated irrespective the real demand for the electricity. In contrary, present way of RES support in connection with the logic of "energy only market" has led to the significant changes in power supply curve (merit order effect). Development of RES power generation also resulted in enormous increase of extra cost related with RES support.