energy usage in kw a year ?

It's a bit like asking how much power an electric oven would consume over a given period. It will depend on how much cooking you do.

Allow about 1 kWh per week give or take - so it's 50 kWh per year as a ball-park figure. If you think that low because children are always opening the door then call it 60 and if it's a single-person household then make it 40.

Peccavi
February 2013