This talk provides an overview of some research activities that are currently performed by the Energy Policy and Rational Energy Use Group at the Centre for Energy Policy and Economics (CEPE), Swiss Federal Institutes of Technology. These activities include the development of an energy policy modeling system with techno-economic submodels for Switzerland, the elaboration of a multi-agent model to simulate obstacles of efficient energy use in industry, an evaluation of the impacts on electricity demand of networking in private households, the development of an energy efficiency indicator for high electric-load buildings, and a study of marginal energy efficiency costs in private households. A brief summary outlining essential issues will be given for each activity and - as available - results based on Swiss data will be presented. Gurkan Kumbaroglu has a Ph.D. degree in industrial engineering, earned in 2001 from the Middle East Technical University in Ankara, Turkey. He has been working at CEPE for the last 15 months and recently joined the International Energy Studies Group at EETD to participate in research until December 12th, 2002. He will return to Turkey to pursue his academic career at the Bosphorus University in Istanbul. His research interests include all kinds of energy and economic modeling.