My elderly FIl lives alone in a detached 4 bed house house. It's fairly modern, and have double glazing etc.
He lives very frugally, doesn't have the heating on much, short showers, doesn't use the oven etc.
His bills are £180 pm. (Gas & electric)
I live in a 3 bed period semi (but it's well insulated) with 2ds and dh. My bills are £55pm.
I can't believe the difference!
My FIL does switch energy companies every year or so to get better deals.
Is there any way his meters are broken/reading wrong?
I help him with the readings, the bills are not estimated.