A power-to-methane process is a power-to-gas process that has electrical energy as energy input, water and carbon dioxide as physical input and synthetic methane carrying chemical energy as physical output. It consists of two sub processes: an electrolysis process and a methanation.
A power-to-gas process is a power-to-fuel process that converts electrical energy to chemical energy by synthesising portions of matter into a gaseous synthetic fuel.
Ontology