Methane from Wood in Switzerland. Perspectives for a New Technological. Generation. Renewable methane is on the political agenda in some European countries. The production of methane from wood (bio-SNG) also offers the Swiss energy sector a strategic complement to established energy technologies. However, bio-SNG is still a very young technological field, both nationally and internationally, and is therefore beset with uncertainties regarding institutional constraints. Furthermore, there are competing technologies which influence its development and which rather increase the risks of any investment in bio-SNG plants.