ONS announced that CPI inflation rose to 9% in the year to April, a level not seen since 1982, and significantly higher than the 7% rate in March. A key driver of inflation is the increased cost of energy; Ofgem’s updated energy tariff cap came into effect in April, raising the cap on average household bills on gas and electricity by 54% from the previous month, meaning a 70% year-on-year increase.