Investments in the benchmarking of the distribution network companies

This paper introduces a method by which investments can be taken into account in the efficiency benchmarking of the electricity distribution companies in Finland. It is studied whether distributed energy, network length, number of customers, present technical value and replacement value of the distribution network are suitable output factors when investments are included in the DEA-model. At the same time the suitability of DEA-method for efficiency benchmarking has been studied.