(In)Accuracy of a Kill-A-Watt for measuring low power usage

[Winston]

Bill in NC wrote:
why worry?

switching power supplies use so little power with no load anyway.

A lot of ours are not switching power supplies. I'd say most are not. I've not done a count, but we have a bunch around the house and I'm working to get a handle on what exactly it means to have them on all the time. Could easily be a couple of hundred watts standby.


- W