Finances expert Martin Lewis has told UK residents not to panic if they struggle to submit a meter reading today.
The Government's new Energy Price Guarantee comes into effect tomorrow (October 1), freezing energy bills for households at typical use at £2,500 each year for the next two years.
It's worth noting that this isn't an absolute cap on your bill, as you can still in fact pay more should you consume extra gas and electricity. However, the price guarantee is a limit on the unit rates that you can be charged by suppliers.