Apparatus for use in a microgrid, which comprises a DC bus with at least one DC power source connected thereto, an AC bus connected to a mains power grid that supplies the microgrid, and a DC/AC converter coupling the DC bus and the AC bus, wherein the DC/AC converter may be a one-way DC/AC inverter or a bidirectional DC/AC converter, the apparatus comprising a control system, which is configured to control number (at least one) DC power converters, each of which is configured to couple a respective controllable DC load to the DC bus, and to control the power flowing from the DC bus to each of the number controllable DC loads, so as to control each of the number controllable DC loads to fulfil its function and the voltage on the DC bus.