Energy consumers face more pain as households on good deals with British Gas and npower face hugely higher bills — if only they had gone to HeatingSave earlier to cut them! Thousands of npower customers were moved off various Sign On Line deals to tariffs which could be 25 per cent higher. In reply, npower says its hand was forced by a recent ruling by Ofgem, the energy regulator, that ordered companies to offer only deals that reflected the true cost of providing power.