Determination of minimum guaranteed price for energy produced by DGS in distribution network

With the presence of distributed generation (DG) in electric distribution networks, distribution companies (DisCo) have the options to purchase energy from DGs units and/or directly from the wholesale electricity market. The DisCo´s desired purchasing price of DG´s energy depends on their impacts on network, and as well as wholesale market price. This paper proposes a new method to determine the minimum guaranteed price of DG´s energy with consideration their impacts on loss. These prices are as efficient economical signal so that lead the investors to installation of DGs at buses with more positive technically impact on the distribution network.