
With the cost of living crisis affecting many people in the UK, finding the cheapest electricity provider is an important way to save money. The cheapest electricity deals now come from suppliers offering 100% renewable electricity, allowing you to save money and reduce your carbon footprint. The quickest and simplest way to find the cheapest electricity provider is to compare energy tariffs and switch suppliers. Many energy companies offer incentives to new customers, such as cashback or bill credits, and smaller suppliers often provide competitive rates and excellent customer service.
| Characteristics | Values |
|---|---|
| Cheapest Electric Company in the UK | Octopus Energy, EDF Energy, Electrocity, British Gas, Scottish Power, Shell Energy, Tulo Energy, OVO Energy, Outfox The Market |
| Cheapest Electric Company in the UK (as of May 2023) | Octopus Energy |
| Cheapest Tariff (as of May 2023) | 'Tracker' tariff by Octopus Energy |
| Cheapest Tariff (as of March 2025) | 'Vari-One' tariff by Tulo Energy |
| Cheapest 12-month Fixed-rate Tariff (as of March 2025) | 'Fix’d Dual Jan25 v1.0' tariff by Outfox The Market |
| Cheapest Fixed-rate Tariff until 31 January 2027 (as of March 2025) | 'Simply Fixed 2Yr Jan27v4' tariff by EDF Energy |
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What You'll Learn

Cheapest energy suppliers in the UK
Energy bills can be expensive, and with the cost of living crisis, many people are looking for ways to save money. While switching energy suppliers may not currently save you money due to the energy market crisis, it is still worth knowing about the cheapest energy suppliers in the UK.
One of the most well-known cheap energy suppliers is Octopus Energy, a British renewable energy firm that produces 100% green electricity. Octopus Energy is also the UK's most awarded energy supplier, with a 5-star rating based on over 500,000 reviews. They offer both fixed and variable pricing, with no exit fees, and their expenses are lower than those of other energy suppliers, resulting in cheaper prices for customers.
Another cheap energy supplier is Electrocity, which claims to be "Britain's Greenest Energy Supplier". Electrocity provides certified green and vegan electricity, and their gas is a mix of carbon-neutralised natural gas and sustainable green gas. They invest customers' bills in building new forms of green energy instead of paying dividends.
Utilita Energy is the UK's first and only pay-as-you-go energy supplier, offering special prices without fixed charges. Customers only pay for the energy they use and do not incur additional fees if they don't use any energy.
Scottish Power is also worth considering for cheap energy supply. They generate clean, renewable electricity through their extensive network of wind farms and supply it to households in an environmentally sustainable manner. They also offer a range of services, including home emergency assistance, appliance care plans, and boiler insurance.
While not one of the cheapest suppliers, British Gas is the largest energy supplier in the UK and is actively reducing emissions to help the UK hit its carbon emissions targets. EDF Energy, owned by the French state-owned company EDF, is another major player in the UK energy market, supplying electricity and gas to homes and businesses.
Remember, when choosing an energy supplier, consider not only price but also your values, such as environmental sustainability, and your specific needs, such as the type of meter and tariff you require.
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Comparing energy tariffs
Energy tariffs can vary significantly, and it is important to compare them to ensure you are getting the best deal. The cheapest electricity tariffs are often fixed-rate plans, which offer a cheap introductory rate for new customers. However, these are usually only valid for a limited time, after which the supplier will move you to a standard variable tariff, which is typically the most expensive type of plan. To get a cheaper tariff, you may need to switch to a different supplier or simply change your tariff with your current supplier.
When comparing energy tariffs, it is essential to consider your own circumstances and preferences. For example, if you use both gas and electricity, a dual fuel tariff might be more cost-effective. On the other hand, if you are primarily interested in renewable energy, you may want to look for providers specialising in wind, solar, or other green energy sources.
It is also worth noting that some electricity-only deals are region-specific, so your location will impact the tariffs available to you. Additionally, the type of meter you have (standard, prepayment, or smart meter) can affect the tariffs offered to you. Smart meters have had some beneficial tariffs in the past, and they can help you monitor your energy usage.
While cost is an important factor, other considerations may influence your decision. For instance, some suppliers offer additional services such as home emergency assistance, appliance care plans, and boiler insurance. Customer service is another key aspect, with some suppliers known for their fast response times and excellent customer support.
Finally, it is always a good idea to read online reviews of potential suppliers to get a sense of their reputation and the quality of their services. By taking the time to compare energy tariffs and suppliers, you can make an informed decision that balances cost with your other priorities.
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Switching energy suppliers
Energy costs can make up a significant portion of a household's total bills, so switching energy suppliers or tariffs can be a great way to save money. You can also switch to a renewable energy supplier to reduce your carbon footprint.
Firstly, you need to know what energy tariff you are on. You can find this out by checking your latest bill or logging into your online account with your current energy supplier. If you are on a standard variable tariff, you can switch at any time. If you are on a fixed tariff contract, you can switch if you have 49 days or fewer left on your contract. If you have 50 days or more left on your contract, you may have to pay an 'exit fee' to leave early. Contact your supplier to check.
You can check other suppliers' tariffs using a price comparison website, but note that not all websites will show the same tariffs and suppliers, so it's a good idea to check a few different websites. You can find a list of price comparison websites on Ofgem's website. If you are switching because of poor customer service from your energy supplier, you can also compare the customer service ratings of different energy suppliers.
When choosing a new supplier, it is important to consider the pros and cons of each choice to determine which is ideal for your home. Before making the switch, investigate the online services provided by your prospective energy provider. Digital bills, a user-friendly smartphone app, and online account access are all useful resources for controlling your energy use. It is also a good idea to read online reviews of a specific energy supplier's mobile app on stores like the Apple and Android app stores.
If you decide to switch, your new energy supplier will contact you and tell you when they will switch your energy supply over to them. It can take up to five working days for households. If your supplier does not complete the work within this time, you can get compensation for problems switching energy suppliers. New domestic contracts can be cancelled within 14 days if you change your mind, but most business energy contracts cannot.
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Energy suppliers with 100% renewable electricity
The UK energy market is highly competitive, and consumers can choose from multiple suppliers. Some of the cheapest energy suppliers in the UK include Electrocity, Utilita Energy, Scottish Power, and EDF Energy.
When it comes to energy suppliers with 100% renewable electricity, there are a few options to consider. Here are the details:
Scottish Power
Scottish Power is a vertically integrated energy company headquartered in Glasgow, supplying gas and electricity to businesses and homes across the UK. Its green tariffs are backed by 100% green electricity from wind farms in the UK. The company also supplies 100% carbon-neutral gas.
Electrocity
Electrocity claims to be "Britain's Greenest Energy Supplier," offering 100% certified green and vegan electricity. The company also supplies carbon-neutral natural gas and sustainable green gas. Electrocity invests its customers' bills in building new forms of green energy.
Green Energy UK
Green Energy UK claims to be the UK's only supplier of 100% green gas and renewable electricity. The company provides ethical and sustainable energy to its customers.
Octopus Energy
Octopus Energy is one of Europe's largest investors in renewable energy and has been recommended by Which? for seven years running. Octopus customers can benefit from prices that are cheaper than price-cap prices and rewards for using less energy when the grid is stressed.
In addition to these suppliers, it is worth noting that some of the larger energy companies in the UK, such as British Gas, are actively reducing emissions and working towards carbon reduction targets.
When choosing an energy supplier, it is important to consider not only the cost but also the environmental impact and the company's commitment to renewable energy sources.
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Energy suppliers with the best customer service
While there is no consensus on which energy supplier has the best customer service in the UK, there are several companies that stand out for their high levels of customer satisfaction and commitment to providing excellent customer service.
Octopus Energy, a British renewable energy firm, is renowned for its excellent customer service and has been recognised as the best energy company in the UK by some sources. With a Trustpilot rating of 4.8 out of 5 stars, Octopus Energy offers clear-cut pricing and does not charge any exit fees. The company is also committed to sustainability, offering 100% renewable electricity.
Utility Warehouse is another highly regarded energy supplier, known for offering energy costs lower than the Energy Price Guarantee provided by the government. They are the UK's only genuine multiservice provider, offering bundled services and additional discounts when customers sign up for multiple services.
Scottish Power, a Glasgow-based energy supplier, is also worth mentioning. With a focus on renewable energy, they have raised significant funds for Cancer Research UK, demonstrating their commitment to social responsibility.
Other energy suppliers that have been recognised for their customer service include Electrocity, which has received positive reviews for its green energy offerings, and E.ON Next, which focuses on renewable energy solutions and customer service.
While not specifically mentioned for their customer service, it is worth noting that EDF Energy and Shell Energy are major energy suppliers in the UK that offer competitive rates and a range of services to their customers.
It is important to note that the energy market is dynamic, and customer satisfaction can change over time. Therefore, it is always a good idea to keep an eye on the market, use comparison tools, and consider factors beyond price, such as environmental impact and customer experience, when choosing an energy supplier.
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Frequently asked questions
The cheapest electric company in the UK is subjective and depends on your consumption levels, the type of meter you have, and the type of tariff you'd prefer. However, Octopus Energy is one of the most affordable energy providers in the UK. They are a British renewable energy firm that produces 100% green electricity.
Electrocity, Utilita Energy, and EDF Energy are also considered some of the cheapest energy suppliers in the UK.
The cheapest electricity tariffs are often fixed plans that offer a cheap introductory rate for new customers. You can also compare electricity prices with dual-fuel energy deals to see if that works out cheaper for you.











































