Laite, ohjauslaite ja menetelmä

The invention relates to a device (10) for controlling power supply to electric appliances of a building, comprising a first and a second output (11, 12), an interface (20) for receiving a control signal, and a controller (21). In order to concentrate electricity consumption elsewhere than in a loading peak, the first output (11) is used for controlling electricity supply to such electric devices whose electricity supply should be switched off on the basis of a first criterion; the second output (12) is an output for controlling electricity supply to such electric appliances whose power supply should be switched off on the basis of a second criterion; the controller (21) is configured to receive a control signal (18) from the interface (20) and, in response to the control signal (18), to examine control parameters to identify the time intervals during which said first criterion is met and to identify the time intervals during which the second criterion is met.