I think that in Europe traditional building materials - like bricks are natural insulators and our modern glass panels are 3 layers by default. So it may come a

I think that in Europe traditional building materials - like bricks are natural insulators and our modern glass panels are 3 layers by default. So it may come as normal house in Europe is especially insulated in US. 200 kwh is quite a lot ... but also in US it looks like that the houses are bigger.