Renewable Energies, Energy Efficiency and Sector Integration: Key Elements to Realize the Energy System Transformation
The pressure to rapidly and comprehensively reduce global greenhouse gas emissions is constantly increasing - forest fires in many regions of the world, the increase in extreme weather events and melting glaciers provide us with clear evidence of this. The energy sector is responsible for a major part of greenhouse gas emissions. Therefore the conversion of the energy supply towards climate neutrality plays a decisive role. Renewable energies will play a key role in this transformation - alongside greater efficiency in the conversion and end-use of energy. The most important sources of renewable energy are solar energy and wind power - this applies globally as well as in Europe and Germany. How can we succeed in building an energy supply on these volatile, weather-dependent energy sources? A growing coupling of the different energy sectors proves to be a key feature. This refers to an increasing use of electricity in mobility and for the provision of heat in buildings and industry. And energy storages in their different forms – thermal, mechanical, electrical, electrochemical, chemical – are central components for the implementation of this sector integration. Using the example of Germany the lecture will attempt to draw a possible picture of an integrated energy system based on renewables that completely avoids greenhouse gas emissions.
Prof. Dr. Hans-Martin Henning is Director of the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany and Professor of “Solar Energy Systems” at the Institute of Sustainable Systems Engineering in the Faculty of Engineering, University of Freiburg. He is member of acatech (German National Academy of Science and Engineering) and spokesperson of the Fraunhofer Energy Alliance. Prof. Dr. Henning obtained his PhD in physics at Oldenburg University in 1993. Since 1994, he has been working at Fraunhofer ISE in Freiburg, holding several different positions of responsibility over the years. In 2014 he was appointed Professor of Technical Energy Systems at the Karlsruhe Institute of Technology KIT and in 2017 Director of Fraunhofer ISE.