Controlling Exchanges of Energy Between a Plurality of Systems Connected to an Electrical Grid

Various embodiments of the present disclosure include a method for controlling one or more exchanges of energy between a plurality of installations using a control unit, wherein each installation is connected to one or more phases A,B,C of a three-phase power grid. An example method includes using the control unit to determine, within a time range T for each of the phases A,B,C and for each of the installations, associated time-dependent powers to be exchanged by means of an optimization method by extremalizing a target function. The target function includes a phase difference: as a term, where Pis in each case the sum of all powers to be exchanged via the respective phase A,B,C at the time t, and g≥0 is a weighting factor.