Technological Decision to Renewable Energy Usage Biogas for Off-grid Systems ConsumptionMarina Zubkova, Vladimir Maslikov, Dmitry Molodtsov, Alexander Chusov, Viacheslav Zhazhkov and Alexander StroganovMATEC Web Conf., 73 (2016) 04004DOI: https://doi.org/10.1051/matecconf/20167304004