Integration of DG in MV-grids: Challenges encountered by the grid operator

In the Netherlands horticultural areas are developed and in these areas a large number of CHP-plants are installed or will be installed in the near future. To facilitate all possible expected power flows the distribution grid as well as the transmission grid needs reinforcements. To meet the obligations of the legal and regulatory framework the grid planning has to be done in a proactive way. In this paper grid planning of a medium voltage grid including large penetration of CHP-plants is described. It is illustrated with an existing case study.