100 kWh per day??? You're burning it like there's no tomorrow. Or somebody is stealing your electricity. My experience from 2-5 person households is that 20 kWh per day is a _very heavy_ consumption. I couldn't even imagine for what is 100 kWh per day needed.
Hot water yes, heating no. Luckily both countries in which I lived have central heating.
I agree that a lot of kWh are needed for heating. But I hope it's, in your case, for less than 6 months a year? Did you notice a difference in consumption in summer and winter months?
Oh yes, in the summer we use something like 20-25 kWh per day, and it is clear that the bulk of those are used either when we cook or when someone is using hot water.
