Affordable Gas and Electricity Suppliers in the UK for 2025

Exploring Energy Costs in 2025

Octopus Energy – Known for Competitive Rates and Renewable Options

Octopus Energy provides a variety of tariffs, including fixed and variable plans. For instance, their “Octopus 14M Fixed v1” tariff costs about £143/month for an average 3-bedroom home (East Midlands example). This supplier also offers:

• 100% renewable electricity at prices similar to standard tariffs.
• Customer service with strong reviews on platforms like Trustpilot.
• Technology-enhanced services, including tracker and time-of-use tariffs.

These features appeal to customers wanting a balance of affordability and renewable energy.

Scottish Power – Variable Tariffs Among Big Six Suppliers

Scottish Power offers variable tariffs with no early exit charges, enabling customers to switch without fees. Their pricing is competitive among the Big Six, with renewable electricity options available. Customers prioritizing flexibility and green energy may find these tariffs appealing.

British Gas – Fixed Tariffs to Consider

British Gas provides fixed-rate tariffs averaging around £140 per month for a 3-bedroom home (East Midlands example). Contracts typically last 12 months with an early exit fee of £100 if switching before completion. British Gas also offers several green tariff options, generally at slightly higher prices than some other suppliers. Customers opting for fixed deals should factor in exit fees and contract length when reviewing tariffs.

Other Suppliers Without Referral Incentives

Some smaller or newer suppliers offer competitive tariffs without referral bonuses, such as:

• Tulo Energy’s “Vari-One” variable tariff at roughly £139/month with no exit fees.
• Outfox The Market’s “Fix’d Dual Jan25 v1.0” fixed tariff priced near £140/month, with an early exit fee of around £50.

These choices may suit customers seeking straightforward tariffs or those avoiding referral-based offers.

Renewable Energy Tariffs Available in 2025

Many suppliers in 2025 provide 100% renewable electricity tariffs at prices comparable to conventional plans. For example, Octopus Energy and EDF Energy supply renewable power from wind, solar, and hydro sources. Some providers also offer “green add-ons” for additional contributions to renewable projects. Choosing renewable tariffs supports sustainability while controlling energy costs, as these options are more accessible and competitively priced.

Understanding Price Caps, Exit Fees, and Switching Process

Price Caps

The Ofgem energy price cap limits charges on default standard variable tariffs and is updated twice a year. Fixed-rate tariffs generally aren’t subject to the price cap and can offer stable prices during contract terms. Tariff prices may vary with market fluctuations.

Exit Fees

Many fixed-rate tariffs have early exit fees if customers switch before the contract ends, typically ranging between £35 and £150 per fuel type. Some suppliers, like Octopus Energy, offer fixed deals with no exit fees. Reviewing exit fees and weighing them against potential savings and incentives is important when considering switching.

Switching Energy Suppliers

Switching generally takes about 21 days without disruption to energy supply. Comparison sites such as Uswitch, Compare the Market, and MoneySuperMarket help locate current tariffs based on postcode and usage. The new supplier usually handles the whole switching process, and customers should submit final meter readings for accurate billing.

Considering Service Quality Among Suppliers

Beyond price, service quality is a vital factor. According to Which?’s 2025 ratings, suppliers like Octopus Energy, Utility Warehouse, and 100Green combine competitive pricing with higher customer satisfaction. Utility Warehouse offers bundled services including energy, broadband, and mobile, which may suit some consumers but not all. Larger suppliers may have competitive prices but variable customer service ratings.

Summary of Energy Tariffs in 2025

• Octopus Energy provides competitive tariffs with options including 100% renewable electricity and exit-free deals on some plans.
• Scottish Power delivers flexible variable tariffs with no exit fees.
• British Gas’s fixed tariffs come with contract commitments and exit fees that should be reviewed.
• Alternatives such as Tulo Energy and Outfox The Market offer competitive tariffs without referral incentives.
• Renewable tariffs are commonly available and often priced comparably to standard options.
• Checking exit fees, comparing tariffs against individual energy use, and factoring in service quality are advised before switching.

Tips for Managing Energy Costs in 2025

• Regularly compare energy tariffs using trustworthy comparison tools.
• Assess your preference for fixed or variable rates according to your consumption and tolerance for risk.
• Consider contract length and exit fees.
• Switch suppliers during penalty-free periods or when savings outweigh fees.
• Review any incentives carefully, evaluating their effect on overall costs.

These tips can help you find energy deals that fit your budget and meet your preferences.

Sources

• Local Energy Prices – Who is the cheapest of the Big Six energy suppliers? (2025)
• Energy Review – Cheapest energy suppliers right now in the UK! (May 2025)
• Which? – Best energy suppliers for 2025
• https://localenergyprices.co.uk/guides/who-is-the-cheapest-of-the-big-six-energy-suppliers
• https://www.energy-review.co.uk/guides/cheapest-energy-suppliers-right-now/
• https://www.which.co.uk/reviews/energy-companies/article/energy-companies/which-energy-survey-results-ajqM43e6ycY8

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