The mission of the Energy Network Group of Energy Electronics Institute (EEI) is to present new concepts of future energy networks and systems, where fuel cells and hydrogen will play an important role.

The systems involve electricity, hot water and hydrogen networks and interconnection of consumers. Fuel cells will be installed in some of the consumers. Fig. 1 represents an example for residential houses.

The system provides cooperative operation of equipment and energy interchange among the houses. The CO₂ emission and primary energy consumption will be reduced significantly. Both experimental systems and PC-based simulators are being developed for quantitative analyses.