Compare Energy Suppliers – Best Rates in the UK 2025

Why It’s Worth Comparing Energy Suppliers in 2025

Energy prices in the UK keep going up and down. This is because there is high demand around the world. The cost to buy energy from others also keeps changing. Ofgem keeps adding new rules as well. That is why it is good to check other energy suppliers often. A lot of people in the UK still stay with their old supplier. They might not know they could get a better energy deal from another place.

Comparing energy suppliers helps you:

• Cut down your energy bills
• See deals that fit your energy usage
• Choose from fixed or variable energy tariffs
• Watch out for hidden exit fees

It does not matter if you use a smart meter, a prepayment meter, or if you have just moved into a new home. Now, changing the company you get your energy from is simple. If you know about the energy market, you can find a plan that fits you well.

How Do Energy Suppliers Set Their Rates?

Suppliers base their pricing on a mix of:

• Wholesale energy costs
• Network and environmental charges
• Profit margins
• The energy price cap set by Ofgem

These are the main things that make up the energy costs you pay. A big part of what you give every month is from what the energy companies have to pay to buy the energy. The bill also has network and environmental charges. A small part goes to the company’s profit. The price cap is one big thing that helps control what companies can charge you. Ofgem is the group that sets the energy price cap and checks what the companies do. The price cap stops energy costs from getting too high.

Suppliers may offer lower prices based on the way you pay, the type of meter at your home, or if you have an electric vehicle charger.

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Top UK Energy Suppliers Offering Competitive Rates

1. Octopus Energy

• They are known to give some of the best electricity deals. You can also find several flexible tariff plans with them.
• Their service has smart tariff choices. Plus, all their electricity comes from 100% renewable sources.

2. EDF Energy

• The company is known for having good customer service.
• It gives fixed rate tariffs and EV charging bundles.

3. British Gas

• known for: There are a lot of customers. You can get good dual fuel bundles.
• features: This lets you easily set up home services.

4. E.ON Next

• Known for: This company is seen as eco-friendly. People also like the good digital experience they get.
• Features: You can get offers that use your smart meter data.

5. So Energy

• Known for: Green tariffs and prices that are easy to read and understand
• Features: Simple energy tariffs and support in the UK

How to Compare Energy Suppliers Effectively

Step 1: Understand Your Usage

Get your yearly energy use by looking at a recent bill or by using the data that comes from your smart meter. If you are not sure how much energy you use, you can use the UK average, or read your meter to help you find out. If you do not know how much electricity is used or how much energy you use in total, try to guess this by thinking about the number of people living in your home and what type of heating you have.

Step 2: Use a Comparison Site

Use an Ofgem-accredited tool to input your:

• Postcode
• Current energy supplier and tariff
• How much energy you use (kWh)
• Things you want, like green energy or dual fuel

This will help you do a full energy price comparison. You can look at each new energy supplier and see which one gives you the best deal for your place and the way you use energy.

Step 3: Review the Options

Sort by:

• Annual cost
• Tariff type (fixed, variable tariff)
• Contract length
• Supplier rating
• Extra perks like cashback, referrals, or EV options

Step 4: Choose the Right Time to Switch

Switching your tariff before the price cap rises, like in July, can help you keep more of your money. If you have a standard variable tariff, now is a good time to change. Doing this can lead to some potential savings for you.

What Are the Signs You Should Switch?

• You have not changed the supplier in the last 12 months.
• You got a letter that says the price will go up.
• Your fixed tariff ended, and now you pay the default rate.
• Your new supplier gives you a better deal.

Who Should Compare Energy Suppliers?

Correct as of 09 June 2025

FAQs About Comparing Energy Suppliers