© 2021 THE AUTHORSSolar energy cooperatives have been gaining importance day by day in renewable energy resources. However, selection of the establishment points of renewable energy cooperatives in the distribution system is a technical problem. In this study, the effects of regional solar power system installations on the reduction of power losses in the distribution system and the expansion of solar energy cooperatives by home user were examined. In this way, it is aimed to reduce business setup costs by using a decentralized cooperative network for micro grids. The new model aims to replace the most appropriate placement of solar energy cooperatives in the distribution system. The annual electricity generation value obtained from solar power system was compared with the transformer-based annual consumption values. Then the number of domestic users that would benefit from solar power system for each region was determined. As a result, details and result of the proposed model presented.