Biomethanation uses microorganisms to efficiently convert H2, CO and CO2 into methane that is able to be injected into the gas grid. Renewable gases need to be upgraded in order to be injected into the gas grid. Biomethanatinon makes it possible to increase methane content by converting CO2, CO and H2 into methane and by reaching grid specifications. Enosis' product is a methanation unit comprising of a reactor which is inoculated with methanogenic microorganisms and its control command. Enosis also provides maintenance services linked to its methanation reactor and sells specifically developed methanogenic consortiums.