Power loss reduction in the energy resource scheduling of a local energy community

The paper focuses on the minimization of the energy procurement cost in the day-ahead optimization of the operation of a local energy community. The community is a set of prosumers, each of them equipped with local generation, energy storage systems and loads. The procedure is based on the classical second order cone programming (SOCP) formulation of the distribution optimal power flow and distinguishes between the power exchanged with the external grid and the power exchanges between the prosumers in order to prioritize the use of local energy resources. The performance of the proposed procedure is shown for various operating conditions of a distribution network in which direct transactions between prosumers connected to different feeders of the same substation are allowed.