The 5 % Approach as Building Block of an Energy System Dominated by Renewables

Abstract

We describe an approach for doubling distribution grid capacity for connecting renewable generators based on curtailing a maximum of 5 % of the yearly energy fed into the grid on a per-generator basis. The paper contains information about the control unit needed for automatic minimum curtailment and the field test that has been set up to validate the approach. Furthermore, topics concerning the operationalization of the 5 % approach using both operational technology and information technology are discussed.