Stochastic Approach for Distribution Planning with Distributed Energy Resources

High penetrations of distributed energy resources (DER), specifically distributed photovoltaic generation, in the electric grid is beginning to challenge distribution planners and engineers. A stochastic approach for distribution planning is necessary to understand the potential impacts of future levels of DER on distribution operations. The stochastic nature of the analysis captures the unpredictability of ‘where’ and ‘how much’ DER can eventually be installed on a feeder. The analysis illustrates DER impact on voltage, protection, harmonics, demand response, and control while considering total penetration levels as well as localized constraints and concentrations.