Control device for an energy distribution system and method for controlling an energy distribution system

The device has an electrical connection for connection to an alternating current (AC) supply system. The control device determines beginning and end of a control period within a common cycle period before beginning of the control period such that a force curve (74) without optimization and a force curve (78) with optimization are optimized by loads to constant curves during the cycle period. The control device determines and considers a total duration, which is equal to discontinuous block periods, instead of the continuous control period during optimization for the loads. An independent claim is also included for a method for controlling an energy distribution system.