Energy

More heat pumps in buildings and more electric cars on the roads will lead to an increase in electricity consumption in Switzerland in the future. To meet this increasing demand, we rely on electricity imports, which, however, often have a large carbon footprint, as they come from gas or coal-fired power plants, for example. In a new study, researchers from Empa and the University of Geneva sketch out various scenarios to show how Switzerland can reduce these CO₂-emitting electricity imports by diversifying the expansion of renewables.

Super-insulating materials such as aerogels are expensive. At the same time, they offer a powerful advantage: the thinner the insulation of a building, the larger its usable area. An Empa research team shows when and where, even today, the use of aerogel is already economically viable and ventures an optimistic forecast.

Barely any of Switzerland's solid and liquid animal manure is used to generate energy. Yet fermentation of manure and slurry has the potential to replace fossil fuels and make agriculture more climate-friendly. A publication by energy researchers from institutions including WSL and PSI aims to help government and industry professionals better exploit this valuable resource.

Scientists at EPFL have developed a way to maximize hydrogen yields from biowaste, within few milliseconds. The method uses rapid photo-pyrolysis to produce hydrogen gas and solid conductive carbon from banana peels.