“…Statistics and databases [2,35,37,73,77] Renewable gas production technology [3,4,45,46,55,56,58,59] Technical potentials [6,7,49] Economic considerations [9,60,67] Legal/regulatory background [20,22,26,27,33,41,48,50,78] Methane leakage [74][75][76] Energy storage technologies and potentials [36,38,39] Hydrogen as an energy vector [40,51,53,57] Implications and developments on end-user side [64-66, 69, 70] Electricity grid issues [42,43] Policy considerations [61,71,79,109] interested reader to the papers of Wall et al, Schaaf et al, Bagi et al, and Götz et al, which provide reviews of research related to renewable gas production with a technology focus [3,4,45,…”