Institut für Energietechnik (IET)

Pilot and Demonstration Plant Power-to-Methane

Theoretical investigations have shown that power-to-gas technology can make a decisive contribution to the conversion of the energy supply from fossil fuels to renewable energy sources. IET implements this theory into practice and thus makes a decisive contribution to the maturation and use of the technology.

Between 2014 and 2017, the first power-to-methane pilot plant in Switzerland was built and operated at IET in Rapperswil. The electricity for the pilot plant was produced with a photovoltaic system. The required hydrogen was produced by electrolysis and the carbon dioxide was recovered directly from ambient air using a Climeworks filter system. The chemical feedstock was converted by catalytic reaction to methane. This methane could be obtained directly from a vehicle at the integrated petrol station. A tank filling of a passenger car takes 14 kg of methane. 62.9 l of water, 38.4 kg of CO2 and 626.6 kWh of electrical energy are required for this production. The efficiency of this power-to-gas system thus reached 35%. The power-to-methane plant was also connected to the local gas grid, so the gas could be fed into this grid.



Project information

Project partner

The first power-to-methane pilot was realized with research funding and funding from industrial partners: 

Contact Power-to-Gas

Boris Meier
+41 (0)55 222 4329



Supported by the Swiss National Science Foundation