20-07-2015, 09:18 AM
(20-07-2015, 09:08 AM)Toms306 Wrote: It's surprising how much things use though, even things you don't think about that are always on... Smoke alarm 2watts, oven clock 3watts, etc!
And of course just 1watt constantly works out to about 9kWh over a year... About a pound per watt at idle...
how have you worked out what your smoke alarm is using? Ours are all battery powered.