Two members of the RESOURCES team, Dr. Franziska Holz und Dr. Daniel Huppmann, paid their annual research visit to the cooperation partner in Trondheim (Norway). Together with Dr. Ruud Egging, Associate Professor at NTNU and Research Affiliate at DIW Berlin, the researchers of the research group resource markets have developed several numerical equilibrium models of international energy markets. The discussions in September 2014 focused on improvements and applications of the energy system and resource market model Multimod and the natural gas market model Global Gas Model. The cooperation of DIW Berlin and NTNU is supported by DAAD and the Norwegian Research Council.