Energy enforcer Ofgem has come up with a new set of energy price rules. It has plans for simpler tariffs which come into force in the summer so that consumers will have an easier task in comparing contracts and shopping around. The reforms will make energy suppliers: issue clearer bills showing the cheapest tariffs; treat consumers more fairly or risk being fined by Ofgem; and offer a maximum of four core tariffs for each fuel type (electricity and gas).