Abstract: A method is disclosed for controlling an electrical installation having electrical devices operated in an energy-producing, energy-storing and/or energy-consuming manner and are connected to an energy supply grid. The method includes a first stage which is aimed at achieving an installation target PAnl,Soll for a power flow PAnl assigned to the installation at the grid connection point, and a second stage which is aimed at achieving an individual device target PGer,Soll,i for a power flow PGer,i of each device from the plurality of devices. On the basis of detection of a power flow PAnl of the installation at a grid connection point and a comparison of the detected power flow PAnl of the installation with the installation target PAnl,Soll, the installation is operated in the second stage if the detected power flow PAnl of the installation is within a tolerance range around the installation target PAnl,soll, or is otherwise operated in the first stage.