SUMMETH, the Sustainable Marine Methanol project, is focussed on developing clean methanol engine and fuel solutions for smaller ships. The project is advancing the development of methanol engines, fuel system installations, and distribution systems to facilitate the uptake of sustainable methanol as a fuel for coastal and inland waterway vessels through:  developing, testing and evaluating different methanol combustion concepts for the smaller engine segment  identifying the total greenhouse gas and emissions reduction potential of sustainable methanol through market investigations  producing a case design for converting a road ferry to methanol operation  assessing the requirements for transport and distribution of sustainable methanol. The SUMMETH project consortium consists of SSPA Sweden, ScandiNAOS, Lund University, VTT Technical Research Centre of Finland, Scania AB, Marine Benchmark, Swedish Transport Administration Road Ferries, and the Swedish Maritime Technology Forum.