How Much Would Your Home Energy Bill Be Over the Next Year?

After two years of us doing this together, Nihal has finally been converted to the gospel of money saving. He will take his annual shower and do his ablutions at work. He's bought extra layers to wear at home so the heating never needs to go on. And he will turn off all the appliances except for his television when I'm on - which we can all agree is worth its weight in gold. So my question today: If you were able to reduce your home energy usage, you would reduce your energy to nothing. How much would your energy bill be over the next year?