Rough guess I pay £350 a year, probably less. No gas or anything, so elec for heating for water, cooking and light. 2 bed flat, mostly alone.
In winter I wear warm clothe, inside. I have a nice warm duvet. Switch lights off that are not needed, mix of energy saving and 100w bulbs. Work in the day so flat can get cold.
In cold spells I get an star blanket out when on the sofa.
I don't even feel feel hat I am scrimping much, could SavE a lot more using less heating and more energy saving bulbs. Most common thing I do switch off lights in empty rooms