Cheapest Gas and Electricity Deals UK 2025 – Save on Energy Bills
Did you know switching energy suppliers or tariff types could lower your 2025 gas and electricity bills? This guide shares tips and top deals to help you save money and understand exit fees clearly.
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Energy Suppliers and Tariffs Available in 2025
1. Octopus Energy – Tariff and Features Overview
- Tariff: Octopus 14M Fixed v1 (12-month fixed)
- Estimated Monthly Cost: Around £143 (includes referral credit which some customers may use)
- Exit Fees: None reported
- Energy Source: 100% renewable electricity
- Additional Options: Offers a “Tracker” variable tariff that varies with market prices
- Customer Feedback: Rated approximately 4.8/5 on Trustpilot based on over 469,000 reviews
Octopus Energy provides fixed-price tariffs that may appeal to those seeking predictability, as well as variable tariffs that track market prices. Customers can consider whether referral credits apply in their case.
2. Tulo Energy – Variable Tariff Information
- Tariff: Vari-One (monthly rolling contract)
- Estimated Monthly Cost: Around £139
- Exit Fees: None reported
- Customer Feedback: Rated around 4.5/5 on Trustpilot with approximately 150 reviews
Tulo Energy offers a variable tariff on a monthly rolling basis which may suit customers who prefer flexible contracts without exit fees.
3. Outfox The Market – Fixed Tariff Information
- Tariff: Fix’d Dual Jan25 v1.0 (12-month fixed)
- Estimated Monthly Cost: Approximately £140
- Exit Fees: £50 per fuel type may apply
- Customer Feedback: Rated about 4.6/5 on Trustpilot with 40,000+ reviews
Outfox The Market provides fixed tariffs with exit fees, potentially suited to customers who want to lock prices and are comfortable with the contract terms.
4. Additional Suppliers and Tariffs
- OVO Energy: Has an 18-month fixed tariff estimated at £136/month, with £150 exit fees per fuel. Emphasizes renewable energy and holds a Trustpilot rating of about 4.2/5.
- Utility Warehouse: Offers fixed tariffs around £142/month which require bundling services; early exit fees of about £150 apply; customer ratings about 4.4/5 on Trustpilot.
- EDF Energy: Provides fixed tariffs locking prices through 2027 at approximately £141/month, with typical exit fees of £150. Renewable options are available; Trustpilot rating around 4.7/5.
- E.ON Next: Multiple fixed tariffs spanning 12 to 18 months, costs range between £133-£141/month, with exit fees near £100; Trustpilot rating about 4.5/5.
Considering Fixed and Variable Tariffs
Understanding tariff types can help in choosing an option aligned with your needs:
Fixed Tariffs
- Energy rates remain unchanged for the contract duration (commonly 12 to 24 months).
- Provide protection against price increases but may involve exit fees if leaving early.
- Suitable for those preferring predictable bills.
Variable Tariffs
- Prices fluctuate, influenced by market costs and regulated price caps.
- Generally include flexibility with low or no exit fees.
- May be beneficial if you can adapt to pricing changes or anticipate falling energy costs.
Influence of Price Caps and Regional Differences
Ofgem sets energy price caps reviewed periodically, which influence many default tariffs. The latest update was in May 2025, and a decrease of around 7% is forecasted for July 2025. Energy costs can vary based on:
- Geographic location
- Household size and energy consumption
- Availability of supplier tariffs in specific areas
For tailored estimates, it is recommended to use postcode-based comparison tools such as Uswitch, Compare the Market, or MoneySuperMarket.
Practical Tips for Comparing and Securing Energy Tariffs
- Regularly check updated deals: Energy markets change frequently; keep comparisons current.
- Review incentives carefully: Some suppliers may offer referral credits or cashback, but verify the terms and applicability.
- Understand contract terms: Note contract length, exit fees, and tariff conditions to avoid unexpected costs.
- Consider your energy usage: Fixed tariffs suit consistent usage; variable options may support flexibility.
- Be cautious with bundling services: Confirm that combined services offer value before committing.
- Timing your switch: Some customers find switching during summer months beneficial, but this depends on market conditions.
- Assess green energy options: Many tariffs now include variable amounts of renewable energy.
In 2025, various suppliers offer tariff options with differing features, prices, and contract terms. Octopus Energy offers both fixed and variable tariffs with referral incentives, Tulo Energy provides variable contracts without exit fees, and Outfox The Market has fixed tariffs with exit fees. Individual circumstances, including location, energy usage, and preferences for contract type, influence which tariff may be best suited.
Using comparison tools that reflect your postcode and reading contract details closely can help in making an informed choice. Regularly reviewing deals and considering incentives may support managing energy expenses throughout the year.
Sources
- Energy Review – Cheapest energy suppliers right now in the UK! (May 2025)
- Energy Review – Cheapest fixed-price energy tariffs (May 2025)
- EDF Energy – Gas and electricity tariffs
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