Cheapest energy suppliers in the UK right now (2025)

Struggling to keep up with rising household bills and looking to save on your energy costs? You’re not alone.

With energy prices always changing and new deals entering the market, it can be difficult to know where to look for genuine savings.

In this article, we’ll cut through the noise and highlight the cheapest energy suppliers in the UK right now. We’ll guide you through the current energy market and compare the different tariffs and options available, helping you decide on the cheapest energy supplier to lower your bills.

Let’s dive into the options that can help you keep more of your hard-earned money in your pocket.

Who is the cheapest energy supplier in the UK now?

In 2025, Octopus Energy is the cheapest energy supplier for most people, with the lowest fixed and variable tariffs available currently.

However, these rates are only the cheapest if you include the £50 referral credit.

If you don’t factor in the credit, Tulo Energy becomes the cheapest option for variable tariffs, and Outfox The Market offers the cheapest fixed tariff.

This is based on the average usage of a 3-bedroom house. Depending on your usage and location, a different supplier may be the cheapest.

Below, you’ll find a quick summary of the top cheapest energy suppliers in 2025:

1. Octopus Energy

• Who They Are: Octopus is known for its green energy focus and excellent customer service. They’re often praised for fair pricing and innovative tariffs.
• Why Choose Them: If you want a reputable supplier that invests in renewable energy and has a strong track record in customer satisfaction, Octopus is a good pick. They also have referral bonuses, which can make their prices even cheaper.
• Tariffs:
  • Octopus 14M Fixed January 2025 v1 (Fixed, 14 months): Costs around £139/month (£1,667/year), with £0 exit fee. This is one of the cheapest fixed deals in the table.
  • Flexible Octopus (Variable, no end date): Costs around £141/month (£1,700/year), no exit fee. This variable tariff is still competitive compared to many others but slightly more than the cheapest variable deals.

2. Tulo Energy

• Who They Are: Tulo is a smaller, budget-focused supplier. They often aim to keep their tariffs simple and affordable.
• Why Choose Them: If you’re looking for low-cost variable tariffs with no early exit fees, Tulo might be a good fit.
• Tariffs:
  • Vari-One (Variable, no end date): Costs about £139/month (£1,668/year), no exit fee. This is one of the cheapest variable tariffs in the table.
  • SVT (Variable, no end date): Costs around £145/month (£1,743/year), no exit fee. This is still mid-range but not as cheap as Vari-One.

3. Outfox The Market

• Who They Are: Outfox The Market is known for offering competitive fixed deals, often appealing to those who want to lock in a rate for a set period.
• Why Choose Them: They frequently feature near the top for cheap fixed rates, though many of their deals do have exit fees.
• Tariffs:
  • Fix’d Dual Jan25 v1.0 (Fixed, 12 months): ~£140/month (£1,684/year), £50 exit fee. One of their cheaper short-term fixed options.
  • 18 – Month Fix’d Dual Jan25 v2.0 (Fixed, 18 months): ~£141/month (£1,687/year), £50 exit fee. Slightly more expensive but locks in the price for longer.
  • 2-year Fix’d Dual Jan25 v1.0 (Fixed, 24 months): ~£142/month (£1,701/year), £140 exit fee. Offers a longer fix at a still relatively low rate.
  • Fox Standard Dual (Variable, no end date): ~£147/month (£1,765/year), no exit fee. More mid-range compared to their fixed tariffs.

4. ScottishPower

• Who They Are: One of the “Big Six” suppliers in the UK, ScottishPower is a long-established company with varied tariff options.
• Why Choose Them: Some people prefer larger suppliers for brand familiarity and wide-ranging customer support. They also offer charitable tie-ins, like their Help Beat Cancer tariff.
• Tariffs:
  • Help Beat Cancer Flexi Jun 2026 TM3 (Variable): ~£140/month (£1,685/year), no exit fee. One of the cheaper variable options in the table.
  • Standard (Variable): ~£147/month (£1,765/year), no exit fee. A typical variable tariff, priced mid-range.

5. British Gas

• Who They Are: The largest energy supplier in the UK and part of the “Big Six.” Known for established customer service channels and a wide range of tariffs.
• Why Choose Them: Some customers prefer British Gas for brand recognition and broad support options.
• Tariffs:
  • Fixed Tariff v21 (Fixed, 12 months): ~£140/month (£1,686/year), £100 exit fee. Among the cheaper fixed plans for a 1-year term.
  • The Longer Fix v18 (Fixed, 24 months): ~£143/month (£1,711/year), £150 exit fee. Costs a bit more but provides price certainty for two years.
  • Standard Variable (Variable): ~£147/month (£1,765/year), no exit fee. Mid-range in price compared to other variable deals.

6. E.ON Next

• Who They Are: Another major UK supplier with a growing emphasis on renewable energy and straightforward customer service.
• Why Choose Them: People seeking a large supplier with green energy initiatives and various fix lengths might find E.ON Next appealing.
• Tariffs:
  • Next Fixed 18m v15: ~£141/month (£1,687/year), 18 months, £100 exit fee.
  • Next Pledge Tracker 12m V7 (Variable): ~£143/month (£1,712/year), no exit fee.
  • Next Fixed 12m v42: ~£143/month (£1,720/year), 12 months, £100 exit fee.
  • Next Gust 12m V16: ~£145/month (£1,741/year), 12 months, £100 exit fee.
  • Next Fixed 24m V27: ~£147/month (£1,765/year), 24 months, £200 exit fee.
  Their cheaper fixed options hover around £141–£143/month, placing them in the lower to mid-price range.

7. EDF Energy

• Who They Are: EDF is a well-known “Big Six” supplier focusing heavily on nuclear and renewable energy sources.
• Why Choose Them: They often have multiple fixed-term choices, so you can pick a plan length that suits you.
• Tariffs:
  • Simply Fixed 2Yr Jan27v4: ~£141/month (£1,688/year), until 31 Jan 2027, £150 exit fee.
  • Simply Fixed Direct 1Yr Jan26v8: ~£141/month (£1,691/year), until 31 Jan 2026, £0 exit fee.
  • Simply Fixed 1Yr Jan26v8: ~£141/month (£1,691/year), until 31 Jan 2026, £50 exit fee.
  • Simply Tracker Mar26 (Variable): ~£143/month (£1,715/year), no exit fee.
  • Standard (Variable): ~£147/month (£1,765/year), no exit fee.
  Their £141/month fixed deals are among the cheaper fixed rates in the market.

8. Utility Warehouse

• Who They Are: Utility Warehouse offers bundled services (energy, broadband, mobile) aiming to simplify bills.
• Why Choose Them: They can be convenient if you want multiple services under one provider.
• Tariffs:
  • UW Fixed 36: ~£142/month (£1,699/year), fixed until 31 Dec 2025, £150 exit fee.
  • Double Gold (Variable): ~£143/month (£1,715/year), no exit fee.
  • Gold (Variable): ~£145/month (£1,745/year), no exit fee.
  • Value (Variable): ~£147/month (£1,764/year), no exit fee.
  Their fixed deal is fairly competitive, and the variable rates range from mid- to slightly higher-priced.

9. So Energy

• Who They Are: So Energy focuses on green electricity and transparent pricing, often ranking well for customer service.
• Why Choose Them: People looking for a simpler, eco-friendly supplier may choose So Energy.
• Tariffs:
  • So Wisteria Two Year – Green: ~£142/month (£1,708/year), 24 months, £150 exit fee.
  • So Wisteria One Year – Green: ~£146/month (£1,752/year), 12 months, £100 exit fee.
  • So Flex (Variable): ~£147/month (£1,763/year), no exit fee.
  Their 2-year fixed tariff is moderately priced, while their variable is mid-range.

10. Co-op Energy

• Who They Are: Co-op Energy is known for its ethical approach and community focus. They emphasize fair pricing and eco-friendly options.
• Why Choose Them: If you want a socially responsible supplier with fixed deals, Co-op Energy might be a good choice.
• Tariffs:
  • Co-op 14M Fixed January 2025 v1: ~£143/month (£1,717/year), no exit fee, 14-month term.
  • Co-op Community Power 14M Fixed January 2025 v1: ~£149/month (£1,785/year), no exit fee, 14-month term.
  Both are in the mid-price range, with the Community Power version costing slightly more.

11. Sainsbury’s Energy

• Who They Are: Sainsbury’s Energy is supplied by British Gas, using the supermarket’s branding. They sometimes offer reward points or vouchers.
• Why Choose Them: If you like Sainsbury’s and want potential loyalty perks, this might suit you.
• Tariffs:
  • Fix and Reward Fixed 18M V10: ~£143/month (£1,718/year), £100 exit fee.
  • Fix and Reward Fixed 12m V39: ~£145/month (£1,739/year), £100 exit fee.
  • Standard Variable: ~£147/month (£1,765/year), no exit fee.
  • Track and Reward 12m v1 (Variable): ~£147/month (£1,765/year), no exit fee.
  • Fix and Reward Fixed 24M V27: ~£149/month (£1,784/year), £200 exit fee.
  Their cheapest fix is the 18-month plan at around £143/month.

12. OVO Energy

• Who They Are: OVO is known for modern, tech-friendly services and a focus on sustainability.
• Why Choose Them: If you want an app-based approach, carbon offset options, and flexible payment methods, OVO is worth considering.
• Tariffs:
  • Extended Fixed 09 January 2025 (18 months): ~£146/month (£1,747/year), £150 exit fee.
  • 1 Year Fixed 09 January 2025: ~£146/month (£1,754/year), £100 exit fee.
  • Simpler Energy (Variable): ~£147/month (£1,764/year), no exit fee.
  • 2 Year Fixed + Heating Control 09 January 2025: ~£151/month (£1,807/year), £190 exit fee.
  • 1 Year Fixed + Greener Electricity 09 January 2025: ~£153/month (£1,834/year), £100 exit fee.
  Their lower-priced fixes start at £146/month, landing in the mid-cost range.

13. Ebico

• Who They Are: Ebico focuses on fair pricing, often aiming to help people who struggle with energy costs.
• Why Choose Them: If you value a smaller supplier focused on affordability and social impact, Ebico might be appealing.
• Tariffs:
  • Ebico Standard (Variable): ~£147/month (£1,764/year), no exit fee.
  • Ebico Prime 12 (Fixed, 12 months): ~£152/month (£1,826/year), £100 exit fee.
  • Ebico Signature (Fixed, 12 months): ~£167/month (£2,000/year), £100 exit fee.
  Their standard variable is mid-priced, but the fixed deals are higher than average.

14. 100Green

• Who They Are: 100Green (formerly Green Energy UK) is dedicated to renewable electricity and often invests in new green projects.
• Why Choose Them: If having 100% renewable energy is your top priority, they could be a fit.
• Tariffs:
  • Sparkling SVT (Variable): ~£166/month (£1,987/year), no exit fee.
  • Sparkling Fixed – December 25: ~£168/month (£2,016/year), exit fee £0, until 31 Dec 2025.
  • Eko Energy 2025: ~£171/month (£2,058/year), exit fee £0, until 31 Mar 2025.
  These prices are quite high compared to the rest, reflecting a premium for 100% green energy.

15. Ecotricity

• Who They Are: Ecotricity was one of the UK’s first green electricity suppliers, heavily investing in wind and solar.
• Why Choose Them: They have a strong environmental focus, creating new renewable projects from customer bills.
• Tariffs:
  • Standard Variable Green Tariff: ~£173/month (£2,080/year), no exit fee.
  This is the most expensive tariff in the table, but it fully supports new renewable projects.

16. Good Energy

• Who They Are: Good Energy specializes in 100% renewable electricity and works with local producers.
• Why Choose Them: Their focus is on sustainability and supporting British renewable generators.
• Tariffs:
  • Good Energy Standard (Variable): ~£147/month (£1,764/year), no exit fee.
  • Good Energy Deemed DD (Variable): ~£147/month (£1,764/year), no exit fee.
  Both are priced similarly, sitting around the mid-to-higher end for variable tariffs.

17. Home Energy

• Who They Are: A smaller supplier aiming to keep things straightforward with transparent costs.
• Why Choose Them: If you want a simple, no-frills variable deal, Home Energy could be an option.
• Tariff:
  • Fair Variable Dual: ~£147/month (£1,765/year), no exit fee.
  This is in the mid-range price bracket.

18. Utilita

• Who They Are: Utilita focuses on pay-as-you-go and smart meter setups. They often appeal to prepayment customers.
• Why Choose Them: If you prefer flexible or prepayment-based methods, Utilita’s technology can be convenient. They are also the only supplier that offers a zero-standing charge tariff.
• Tariff:
  • Smart Energy (Variable): ~£147/month (£1,765/year), no exit fee.
  Priced in line with many mid-range variable tariffs.

If you’re only interested in a comparison between the bigger suppliers, then check out our guide on the Big 6.

Cheapest energy tariffs currently available in 2025

Above, we’ve given a quick summary of each supplier and the tariffs they have available; below, you can see the data we used for this.

These prices are based on a consumer in the East Midlands, with the average amount of gas and electricity usage for a 3-bed property. It will give you a good idea of the suppliers to focus on if you’re looking for the cheapest option, but you should do your own comparison to get a more accurate estimate.

You can find the cheapest supplier in your area using our local search tool.