Mark Tiepelt is a qualified civil engineer with 25 years experience in construction, alternative building, and sustainable energy technologies. Mark started BiogasSA in 2009, initially focusing on the smaller domestic size digester of which over 100 has been installed in SA to date. Over the past four years BiogasSA has however focused more on the commercial biogas sector and is currently commissioning a 400kW biogas plant at an abattoir in Johannesburg. BiogasSA also held the first biogas workshop in SA in 2012, assisted in organizing the 2 National Biogas Conferences held in 2013 and 2015 with the Department of Energy. BiogasSA also played an instrumental role in the establishment of the SA Biogas Industry Association (SABIA). Mark was elected as the first chairman of SABIA and is currently serving his second term in this position.