The study focuses on two major aspects.
First of all, it provides a detailed picture of possible developments in the electricity sector with low carbon emissions and high diffusion of renewable electricity generation. The analysis is carried out on an hourly basis for three year-round meteorological datasets in order to ensure the reliability of the system.
Secondly, the study analyzes the impacts of increased efficiency in electricity consumption on the required infrastructure, the structure of the electricity supply and the cost of the system. Therefore, two scenarios are developed. Scenario A “High efficiency” presumes a very ambitious reduction of electricity demand, based on the ADAM study (Jochem & Schade 2009). The second Scenario B “Moderate efficiency” is based on the electricity demand of the TRANS-CSP study (DLR 2006), projecting higher electricity consumption than in Scenario A. In both scenarios, a cap of 75 Mt is applied to the average annual CO2 emissions in 2050, relating to a 95% reduction compared to 1990 levels. Both scenarios do not rely on additional nuclear capacity and CCS in the electricity sector, since both options are connected with substantial political, economic and technical uncertainties. In both scenarios the given CO2 target is achieved without relying on these technologies.