The energy price cap is set by the energy regulator Ofgem and is used to cap the amount that energy suppliers can charge consumers, with the cap being reviewed every three months. The cap is not the maximum amount you pay for your energy but refers to the maximum a household can be charged per year for average usage, and your own bills will change depending on how much gas and electricity your household uses. Whether the energy price cap will save you money depends on your energy usage and the tariff you have agreed with your energy supplier, but it will prevent you from being ripped off with rates much higher than the average wholesale costs.