Brits will now be given 30 days warning of their gas and electricity bills increasing in price, which will give them time to shop around for a new energy tariff.
From today (April 28th), an Ofgem ruling has come into effect, which means all energy companies have to notify their customers of price changes 30 days before doing so.
Previously, energy firms did not have to do this, which may have caught some consumers out as they may have been faced with a more expensive energy bill.
Energy companies also need to inform their customers of any changes that are being made to their contract which will make them worse off.
Therefore, Brits will now know if their energy prices are going up and they can switch utility provider before the price hike is implemented.
One of the best ways in which to switch energy provider is through using a price comparison site, such as MoneyExpert.com.
That is because these sites list the energy tariffs currently on the market and the length of the contract. They will also list online energy plans which can work out cheaper than those obtained offline.
Andrew Wright, senior partner of markets at the energy regulator, stated that Ofgem is dedicated to ensuring that energy companies play it straight with customers and that they are dealt with fairly.
Hannah Mummery, energy expert at Consumer Focus, has welcomed the ruling.
She said: "People clearly need to be given fair warning if prices are going to go up, not told months after the event.
"This welcome move will help give people the opportunity to budget for higher bills in advance, weigh up their options about whether to switch supplier and shop around."
The government is also trying to make it easier for Brits to switch energy or insurance providers through a new scheme called MyData.
This scheme enables consumers to access the marketing data that companies have obtained about them.