Sverre Eriksen is a Senior Principal Engineer for electrical systems in DNV Maritime. Sverre has an MSc in electric power engineering from the Norwegian University of Science and Technology. He joined DNV in 2008. He is a specialist in battery systems and has been responsible for developing the DNV class rules for battery-powered ships since 2011. He works with the certification of battery systems and DNV classification of many ships with batteries. In addition, he is involved in DNV investigations of incidents with batteries installed on ships.