A Comparison of Indicators for Self-Sufficient Energy Systems

Industry is one of the major energy consumers in Germany. In order to fulfil the social responsibility of the energy revolution, companies required to install and to use their own renewable energy. With the increasing set-up of renewable energy systems at the production site, these companies are interested in consuming most of the energy directly on-site. Based on a material flow simulation of the Green Factory Bavaria in Augsburg, this paper compares different indicators for the energy self-sufficiency. Finally the effect of electrical energy storage to increase the energy self-sufficiency is examined.