Ploumpidou, Evi, Sjoerd Romme, Madeleine Gibescu, Arno Bronswijk, Harry Stokman, Pepijn van Willigenburg, and Wil Paulus. 2017. “Transition towards DC Micro Grids: From an AC to a Hybrid AC and DC Energy Infrastructure”. SPOOL 4 (2):79-84. https://doi.org/10.7480/spool.2017.2.1934.