I think that they are talking about ghost-loads with that figure. A ghost-load would include things like standby mode on your computer, or even most modern computers when they are turned off. (Very few computers have a switch that cuts off power completely.) It will include TVs and VCRs and even some coffee machines (you know, the one that adds a fifth clock to your kitchen). Even if your the appliance physically turns off and does not offer a standby mode, you may still have a ghost load. The power brick on my radio uses 4 W even when it is completely disconnected from a load (e.g. the radio). When the radio is on, the total power consumption is 6 W. I should build a cable to test the radio's actual power consumption.