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You may be able to reduce your energy bills by switching to a new tariff
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We all need fuel to power and heat our homes. That’s why we make it easy to compare fuel suppliers and tariffs and switch to a better deal with our handy fuel price comparison tool.
By shopping around, instead of sticking with the same provider, you might be able to save money.
The price of your energy depends on how much you use, where you live and the type of tariff you’re on. What’s happening in the energy markets will also have an effect, unless you’re on a fixed-rate tariff.
Electricity and gas companies measure how much fuel you use in kilowatt hours (kWh). Ofgem says the average household uses around 11,500 kWh of gas and 2,700 kWh of electricity each year.
But your actual usage will vary depending on the size of your home and the number of people living in it. Tariffs are generally made up of two charges:
Standing charge – the rate you’re charged per day
Unit rates – the amount you’re charged per kWh for the energy you use. This is influenced by the wholesale price, which is what the supplier pays for energy.
When you use Compare the Market’s fuel price comparison tool, we calculate what combination of standing charges and unit rates could be best for you, based on your energy use.
We can also help you compare dual fuel prices to see if you’d make a saving.
Every three months, Ofgem – the UK’s energy regulator – reviews the amount suppliers can charge per unit of energy and sets a price cap. In recent years, that cap has been significantly higher due to a rise in global wholesale energy prices.
At times when wholesale fuel prices become more expensive, Ofgem may raise the price cap to allow energy providers to charge UK households more.
A lot of our customers choose a fixed-rate tariff to avoid being affected by changing market rates.
Aside from wholesale fuel prices, there are various other factors that can impact energy costs, including:
The cost of transporting fuel
Government levies and VAT
Energy suppliers’ profit and operating costs
The source of your energy – for example, if you’re on a green tariff where your energy comes from renewable sources such as wind farms, solar power, hydro power and biomass fuels.
So, it’s a competitive market and prices change all the time. This is why it’s important to compare fuel prices regularly. With Compare the Market’s fuel price comparison tool, you can check energy prices in just 3 minutes[1].
[1] Correct as of June 2026.
You can use Compare the Market’s fuel price comparison tool to compare fuel prices and choose the right energy deal for you. Simply enter your postcode and we’ll estimate your usage.
Understand different tariffs, energy usage and what to consider for your home
When you start a fuel price comparison with us, we’ll ask you if you’re interested in the following tariffs:
Variable-rate tariff – a flexible tariff that you can leave at any time without paying exit fees. Costs can go up or down in reaction to wholesale costs. So, a variable tariff might not be the best if you prefer predictable monthly bills.
Fixed-rate tariff – your standing charge and unit rate is fixed, which can help with budgeting. But your bills can go up or down depending on how much energy you’re using.
Find more about these tariffs and what else is on offer – such as online and green tariffs – in our energy tariffs explained guide.
The UK energy price cap is set by Ofgem to make sure UK consumers always pay fair prices for gas and electricity. Energy price caps limit the amount your supplier can charge per kWh of gas and electricity if you’re on certain tariffs.
But despite the cap, if you stay on a standard rate tariff, you’re likely to miss out on cheaper deals. So, it’s always a good idea to shop around and compare fuel prices.
Find out more about the energy price cap.
Dual fuel energy is where you get your gas and electricity from the same supplier. People often think it’s cheaper than buying gas and electricity from separate suppliers. But this isn’t always true.
Energy prices are constantly changing. So, it’s always worth using our fuel price comparison service to compare fuel suppliers for gas and electricity separately, before opting for a dual fuel deal.
That said, it’s definitely easier to deal with one supplier for your gas and electricity bills.
Find out more about dual energy fuel energy.
Once you’ve compared fuel prices and found a new deal, just double-check the details and click to switch online. We’ll then send your details over to the supplier to start the switch process.
Switching takes up to five working days to complete. You’ll have a 14-day cooling-off period, during which you can cancel the contract without paying a fee. There’ll be no changing of equipment and no interruption to your energy supply.
The Energy Switch Guarantee makes sure it’s quick, easy and hiccup-free to switch energy suppliers.
What our expert says...
“Although the energy market is volatile, there are still good gas and electricity deals to be found. Knowing a bit about how fuel prices work and what tariffs are available will help when you start shopping around.”