Energy

Climate-related temperature rises will further increase the cooling demand of buildings. A projection by Empa researchers based on data from the NEST building and future climate scenarios for Switzerland shows that this increase in energy demand for cooling is likely to be substantial and could have a strong impact on our future – electrified – energy system.

The new research project SURE (SUstainable and Resilient Energy for Switzerland) started on May 4. Over the next six years, ten research institutions under the project lead of the Paul Scherrer Institute PSI will study how Switzerland can ensure its energy supply is as sustainable and resilient as possible in the coming decades.

Buildings, districts and cities currently often have outdated energy systems. Homes must be made more energy-efficient and districts need to be supplied with renewable energy. In cities, the aim is to turn energy production and mobility into sustainable systems. This involves complex energy models that Kristina Orehounig is researching in her “Urban Energy Systems” department at Empa.

Power converters play an essential role in electric vehicles and solar panels, for example, but tend to lose a lot of power in the form of heat in the electricity conversion process. Thanks to a new type of transistor developed at EPFL, these converters can perform at substantially improved efficiencies, especially in high-power applications.

EPFL engineers are taking part in PROMETEO – an EU research project to generate hydrogen on a large scale from renewable sources, in an effort to lower industrial carbon emissions.