Electricity Distribution Among Users of an Energy Community: Calculation of Repartition Coefficients Under Social Scenarios

Current Spanish regulation allows the calculation of repartition coefficients to distribute electricity to users of an energy community. Literature has focused on minimum-cost solutions, and has paid less attention to the introduction of social objectives (e.g., equity) and constraints (e.g., due to the presence of users in a vulnerable situation). This paper studies the definition of dynamic repartition coefficients under different social scenarios by means of a mixed-integer linear programming model. Results for an illustrative case study show how the same cost per energy unit for all users can be obtained, to promote equity, or how a reduced price can be achieved for vulnerable users. Such results can assist energy communities’ promoters with the definition of the every-day electricity sharing among users.