Power consumption is measured in kWh, i.e. hours x watts.In this case, you would have to let the Technisat Digit run for about 330 hours until a kWh is reached.In our case, the kWh costs around 20 centimes.Whether nominal power is meant in this case for standby operation or for radio or DVB operation, I cannot answer that question.The power consumption depends, among other things, on the volume.But even in radio mode, I think the consumption is in the range of a low LED lamp.Hope I have answered your question to some extent.