Macro-level Evaluation of Distribution Network Operational Risks Caused by Distributed Generation

This paper presents a method to evaluate operational risks of distributed generation integrating to power grid enterprises. By using the data of total power consumption and average unit capacity cost, macro-level evaluation for risks of power grid revamping cost increase, power purchase cost increase, power sales market share reduction, sunk cost increase and line grid loss increase is made. A case study of distributed PV in Jiangsu province is carried out.