Significance, state of the art, need for action

This study concentrates essentially on the use of storage facilities in electrical energy supply systems. There is an urgent need to act here on account of two major challenges facing society: a) to achieve greater independence from imports of primary energy sources, and b) to comply with the contractual obligations ensuing from the Kyoto Protocol for drastic reductions in carbon emissions. Together with improving the efficiency of power generation and consumption, this results in particular in the need to make greater use of the country‘s own renewable energy sources.