Cheapest Variable Energy Tariffs in the UK (September 2026)
Home Energy’s Fair Variable Dual is the lowest-priced qualifying September tariff at £1,453 a year.
Overview
Quick Summary
27 tariffs from 16 suppliers met the common September 2026 filters. Home Energy’s Fair Variable Dual ranked first at £1,453 a year (£121 a month). Prices are estimates for the stated usage, region and payment method, not personalised quotes.
Top tariffs this month
- #1 BEST VALUEHome EnergyFair Variable Dual£121/mo£1,453 / yearNo fixed term
- #2Outfox EnergyOutfox the Price Cap Tracker 12M Dual - V3£123/mo£1,481 / year12-month term · exit fee £150
- #3So EnergySo Green Tracker 24m£126/mo£1,508 / year24-month term · exit fee £190
#1 Home Energy — Fair Variable Dual: £1,453 a year (£121 a month), with no fixed term shown and no exit fee.
#2 Outfox Energy — Outfox the Price Cap Tracker 12M Dual - V3: £1,481 a year (£123 a month), with 12-month term and £150 exit fee.
#3 So Energy — So Green Tracker 24m: £1,508 a year (£126 a month), with 24-month term and £190 exit fee.
Supplier highlights
Home Energy
TOP PICKWho they are: Home Energy had 1 qualifying tariff in this September comparison.
Why choose them: Fair Variable Dual was its lowest-priced qualifying tariff at £1,453 a year (£121 a month), with no fixed term shown and no exit fee.
Outfox Energy
Who they are: Outfox Energy had 2 qualifying tariffs in this September comparison.
Why choose them: Outfox the Price Cap Tracker 12M Dual - V3 was its lowest-priced qualifying tariff at £1,481 a year (£123 a month), with 12-month term and £150 exit fee.
So Energy
Who they are: So Energy had 3 qualifying tariffs in this September comparison.
Why choose them: So Green Tracker 24m was its lowest-priced qualifying tariff at £1,508 a year (£126 a month), with 24-month term and £190 exit fee.
Utility Warehouse
Who they are: Utility Warehouse had 6 qualifying tariffs in this September comparison.
Why choose them: UW Tracker Saver 5 was its lowest-priced qualifying tariff at £1,511 a year (£126 a month), with no fixed term shown and £150 exit fee.
British Gas
Who they are: British Gas had 2 qualifying tariffs in this September comparison.
Why choose them: Cap Tracker Plus Sep27 v1 was its lowest-priced qualifying tariff at £1,551 a year (£129 a month), with no fixed term shown and £50 exit fee.
E.ON Next
Who they are: E.ON Next had 2 qualifying tariffs in this September comparison.
Why choose them: Next Pledge Tracker 12m v12 was its lowest-priced qualifying tariff at £1,560 a year (£130 a month), with 12-month term and £50 exit fee.
Octopus Energy
Who they are: Octopus Energy had 1 qualifying tariff in this September comparison.
Why choose them: Flexible Octopus was its lowest-priced qualifying tariff at £1,598 a year (£133 a month), with no fixed term shown and no exit fee.
Pricing data is from uSwitch.
Utilita Energy
Who they are: Utilita Energy had 1 qualifying tariff in this September comparison.
Why choose them: Smart Energy was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
Scottish Power
Who they are: Scottish Power had 1 qualifying tariff in this September comparison.
Why choose them: Standard was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
EDF Energy
Who they are: EDF Energy had 1 qualifying tariff in this September comparison.
Why choose them: Standard (Variable) was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
OVO Energy
Who they are: OVO Energy had 1 qualifying tariff in this September comparison.
Why choose them: Simpler Energy was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
Sainsbury’s Energy
Who they are: Sainsbury’s Energy had 2 qualifying tariffs in this September comparison.
Why choose them: Sainsbury's Standard Variable was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
Fuse Energy
Who they are: Fuse Energy had 1 qualifying tariff in this September comparison.
Why choose them: Variable Import was its lowest-priced qualifying tariff at £1,611 a year (£134 a month), with no fixed term shown and no exit fee.
Good Energy
Who they are: Good Energy had 1 qualifying tariff in this September comparison.
Why choose them: Good Energy Standard was its lowest-priced qualifying tariff at £1,710 a year (£143 a month), with no fixed term shown and no exit fee.
100Green
Who they are: 100Green had 1 qualifying tariff in this September comparison.
Why choose them: Sparkling SVT was its lowest-priced qualifying tariff at £1,762 a year (£147 a month), with no fixed term shown and no exit fee.
Ecotricity
Who they are: Ecotricity had 1 qualifying tariff in this September comparison.
Why choose them: Standard Variable Green Tariff was its lowest-priced qualifying tariff at £1,813 a year (£151 a month), with no fixed term shown and no exit fee.
Methodology
This page ranks variable tariffs only by estimated annual cost, lowest first. Tariff type, contract term and exit fee are kept as separate facts: a tracker or variable tariff can still have a term or an exit fee. All price figures use a representative East Midlands postcode, Monthly Direct Debit and the stated Ofgem medium-use assumptions. Electricity-only, gas-only and dual-fuel rows may appear; readers should compare like with like and obtain a personalised quote before switching.
All tariffs (27)
All 27 tariffs ranked by annual cost.
| # | Supplier | Tariff | Annual | Term | Exit |
|---|---|---|---|---|---|
| ★ 1 | Home Energy | Fair Variable Dual | £1,453 | None | None |
| 2 | Outfox Energy | Outfox the Price Cap Tracker 12M Dual - V3 | £1,481 | 12mo | £150 |
| 3 | So Energy | So Green Tracker 24m | £1,508 | 24mo | £190 |
| 4 | Utility Warehouse | UW Tracker Saver 5 | £1,511 | None | £150 |
| 5 | Utility Warehouse | UW Tracker Plus 5 | £1,536 | None | £150 |
| 6 | British Gas | Cap Tracker Plus Sep27 v1 | £1,551 | None | £50 |
| 7 | So Energy | So Green Tracker 12m | £1,558 | 12mo | £100 |
| 8 | E.ON Next | Next Pledge Tracker 12m v12 | £1,560 | 12mo | £50 |
| 9 | Utility Warehouse | Double Gold | £1,561 | None | None |
| 10 | Utility Warehouse | UW Tracker Start 5 | £1,581 | None | £150 |
| 11 | Utility Warehouse | Gold Variable | £1,591 | None | None |
| 12 | Octopus Energy | Flexible Octopus | £1,598 | None | None |
| 13 | Utility Warehouse | Value | £1,610 | None | None |
| 14 | So Energy | So Flex | £1,610 | None | None |
| 15 | Utilita Energy | Smart Energy | £1,611 | None | None |
| 16 | Scottish Power | Standard | £1,611 | None | None |
| 17 | Outfox Energy | Fox Standard Dual | £1,611 | None | None |
| 18 | British Gas | Standard Variable | £1,611 | None | None |
| 19 | E.ON Next | Next Flex | £1,611 | None | None |
| 20 | EDF Energy | Standard (Variable) | £1,611 | None | None |
| 21 | OVO Energy | Simpler Energy | £1,611 | None | None |
| 22 | Sainsbury’s Energy | Sainsbury's Standard Variable | £1,611 | None | None |
| 23 | Sainsbury’s Energy | Sainsburys Track & Reward 12m v1 | £1,611 | 12mo | None |
| 24 | Fuse Energy | Variable Import | £1,611 | None | None |
| 25 | Good Energy | Good Energy Standard | £1,710 | None | None |
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Our verdict
Home Energy’s Fair Variable Dual is the lowest-priced qualifying tariff in this September comparison.
Its estimated cost is £1,453 a year (£121 a month) under the common assumptions, with no fixed term shown and no exit fee.
Price is only one consideration. Check the named tariff’s current availability, service type, term and exit fee, then obtain a personalised quote before switching.
Frequently asked questions
How is this page ranked?
Tariffs are ranked by estimated annual cost under one common set of assumptions. Only variable tariffs qualify.
Are these personalised prices?
No. Prices use an East Midlands representative postcode, Monthly Direct Debit and Ofgem medium-use assumptions. Your quote can differ with location, usage, meter and eligibility.
Does a variable or tracker tariff always have no exit fee?
No. Tariff type, contract term and exit fee are separate. Check the named tariff’s term and exit fee before switching.
Why can rankings move sharply between months?
The monthly table is rebuilt from the qualifying evidence available for that month. A tariff entering, leaving or changing price, or a rating or service measure changing, can move a supplier or tariff several places.
What does missing data mean?
It means the relevant comparable figure was not present under this page’s filters. Missing values are not estimated; check the supplier directly for current availability and a personalised quote.
Written by
Rob Gibbs
Hi, I'm Rob, and I run Energy-Review.co.uk. I initially started this project in 2018 when I was looking to switch energy suppliers and found there wasn't a website that provided simple, data-backed reviews on all the suppliers available. Since then, I have spent a lot of time (too much, some may say!) looking at all publicly available data about each supplier and writing reviews using this information. These reviews are updated as regularly as possible, and any data is backed up by a source where necessary. I have also started writing guides on various energy-related topics, which hopefully you will find useful. If you find any issues, please use our contact form to let us know.
What changed this month
No significant changes this month.
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