AI Picks / United Kingdom / Home services
Best energy supplier in the UK, according to AI
Octopus Energy was the brand AI assistants named most often for UK energy suppliers, appearing in 56 of 60 answers. This page reports what ChatGPT, Gemini, Perplexity and Google AI Overviews said across those 60 answers.
- 15 real searches
- 4 AI assistants
- 60 answers read
- No affiliate links
- Best all-round choiceOctopus EnergyNamed in 93.3% of answers
- Best for billing accuracy and customer supportE.ON NextNamed in 55% of answers
- Best for green energy100GreenNamed in 43.3% of answers
- Best for low/no standing charge tariffsEDFNamed in 41.7% of answers
- Best for low users, lower standing chargesBritish GasNamed in 36.7% of answers
- Best for range of energy plans and account-management featuresOVO EnergyNamed in 26.7% of answers
The energy suppliers brands AI recommends most
Share of the 60 answers that named each brand. The squares show which assistants named it.
- 1Octopus EnergyModels named: Intelligent Octopus Go, Tracker, Intelligent OctopusCGPAYour brand? Add your link
- 2E.ON NextModels named: Next Drive Smart, Next Drive, Next PledgeCGPAYour brand? Add your link
- 3100GreenCGPAYour brand? Add your link
- 4EDFModels named: GoElectric, Simply Tracker, EssentialsCGPAYour brand? Add your link
- 5British GasModels named: Fixed Solar Saver, EV Power FixedCGPAYour brand? Add your link
- 6OVO EnergyModels named: Charge AnytimeCGPAYour brand? Add your link
- 7E (Gas & Electricity)Models named: E MySmartECGPAYour brand? Add your link
- 8Good EnergyCGPAYour brand? Add your link
- 9Outfox EnergyModels named: Fix'd Dual Feb26 12M v3.0CGPAYour brand? Add your link
- 10ScottishPowerModels named: EV Optimise, EV SaverCGPAYour brand? Add your link
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What the answers said about each brand. Prices are as quoted in the answers, not checked by us.
| Brand | Share of answers | Named by | Named best for | Models named | Prices quoted |
|---|---|---|---|---|---|
| Octopus Energy | 93.3% | 4 of 4 | best all-round choice, customer service, best overall | Intelligent Octopus Go, Tracker, Intelligent Octopus | around 7.6p/kWh; ~7.6p per kWh; ~9.5p per kWh |
| E.ON Next | 55% | 4 of 4 | billing accuracy and customer support, digital tools and smart meter integration, competitive exclusive fixed tariffs | Next Drive Smart, Next Drive, Next Pledge | around 8.1p/kWh; ~8.5p per kWh |
| 100Green | 43.3% | 4 of 4 | green energy, 100% green gas and electricity, 100% renewable electricity and 100% green gas | – | – |
| EDF | 41.7% | 4 of 4 | low/no standing charge tariffs, fixed-term contracts and larger energy needs, flexible tariffs & high consumers | GoElectric, Simply Tracker, Essentials | 6.66p/kWh; ~6.66p per kWh |
| British Gas | 36.7% | 4 of 4 | low users, lower standing charges, comparing a major established provider, large & multi-site businesses | Fixed Solar Saver, EV Power Fixed | ~9.5p per kWh |
| OVO Energy | 26.7% | 4 of 4 | range of energy plans and account-management features, sustainability, carbon-offsetting, smart electric heating/ev tech, reliable mainstream option | Charge Anytime | ~14p per kWh; ~7p–13.3p/kWh |
| E (Gas & Electricity) | 25% | 4 of 4 | low standing charges, best overall, overall service ratings | E MySmartE | – |
| Good Energy | 23.3% | 4 of 4 | renewable energy, certified 100% renewable electricity with local solar and wind, green credentials | – | – |
| Outfox Energy | 21.7% | 3 of 4 | customer commitments and complaints management, customer service, recent service rating | Fix'd Dual Feb26 12M v3.0 | £1,597.02 per year |
| ScottishPower | 20% | 4 of 4 | specialists, comparing prices, 100% green electricity options | EV Optimise, EV Saver | ~7.2p to 7.7p/kWh |
What people in the UK ask, answered
Each answer is our summary of what the four assistants said.
What are the best energy suppliers in the UK?
Octopus Energy was named most often, appearing in 56 of 60 answers and described as the best all-round choice and best overall. E.ON Next was named in 33 answers and EDF in 25. ChatGPT and Gemini both named Octopus Energy for customer service.
Which energy suppliers does Martin Lewis recommend?
The assistants did not single out a supplier for this question. Octopus Energy was named most overall for this category, appearing in 56 of 60 answers. E.ON Next and EDF were also named frequently.
Who are the best energy suppliers in the UK?
Octopus Energy was named in 56 of 60 answers as best overall and best all-round choice. E.ON Next appeared in 33 answers, cited for billing accuracy and customer support. EDF appeared in 25 answers, cited for low or no standing charge tariffs.
What are the best business energy suppliers in the UK?
British Gas was named for large and multi-site businesses, and EDF for fixed-term contracts and larger energy needs. Octopus Energy was named most overall for this category, in 56 of 60 answers. The assistants did not single out one brand as best for business only.
Which are the best energy suppliers in my area?
The assistants did not single out a supplier for this question. Octopus Energy was named most overall for this category, appearing in 56 of 60 answers. E.ON Next and EDF were also named frequently.
What are the best energy suppliers in Scotland?
The assistants did not single out a supplier for Scotland. Octopus Energy was named most overall for this category, in 56 of 60 answers. ScottishPower was named in 12 answers and described as a specialist and for comparing prices.
What are the best prepayment energy suppliers in the UK?
The assistants did not single out a supplier for prepayment. Octopus Energy was named most overall for this category, in 56 of 60 answers. E.ON Next and EDF were also named frequently.
Which prepayment energy suppliers does Martin Lewis recommend?
The assistants did not single out a supplier for this question. Octopus Energy was named most overall for this category, appearing in 56 of 60 answers. E.ON Next and EDF were also named frequently.
What are the best renewable energy suppliers in the UK?
100Green was named in 26 answers for 100% green gas and electricity and 100% renewable electricity. Good Energy was named in 14 answers for certified 100% renewable electricity with local solar and wind. Octopus Energy was named most overall, in 56 of 60 answers.
What are the best green energy suppliers in the UK?
100Green was named in 26 answers for green energy and 100% green gas and electricity. Good Energy was named in 14 answers for green credentials and renewable energy. Octopus Energy was named most overall, in 56 of 60 answers.
What are the best energy suppliers in Northern Ireland?
The assistants did not single out a supplier for Northern Ireland. Octopus Energy was named most overall for this category, in 56 of 60 answers. E.ON Next and EDF were also named frequently.
What are the best energy suppliers for electric cars in the UK?
OVO Energy was named for smart electric heating and EV tech, and its Charge Anytime model. E.ON Next was named for its Next Drive and Next Drive Smart models. Octopus Energy was named most overall, in 56 of 60 answers, and its Intelligent Octopus Go model was listed.
What are the best value energy suppliers in the UK?
EDF was named in 25 answers for low or no standing charge tariffs, with answers quoting around 6.66p/kWh. E (Gas & Electricity) was named in 15 answers for low standing charges. Octopus Energy was named most overall, in 56 of 60 answers, with answers quoting around 7.6p/kWh.
What are the top 10 best energy suppliers in the UK?
Octopus Energy was named in 56 of 60 answers as best overall. E.ON Next was named in 33 answers and EDF in 25. 100Green was named in 26 answers for green energy.
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How we count
We ask ChatGPT, Gemini, Perplexity and Google AI Overviews the questions people in the UK actually search for (15 for this category), asked from the UK, and read every answer: 60 answers here.
A brand scores when an answer recommends it. Its rank is the share of answers that named it. Shops, review sites and brands an answer warns against are not counted. Different spellings of the same brand are merged.
This is what the assistants said on 17 October 2026, not our own opinion: we do not test products. We ask again every month. Paid listings are labelled and never change the ranking. There are no affiliate links on this page.
Vasukai and Kael Tripton are both run by Kael Tripton Ltd. The Kael Tripton box on this page is ours; it is not part of the AI ranking and does not change it.
The rankings and data are ours (© Vasukai). You are welcome to quote a ranking with a link to this page; copying the data in bulk or by automated means is not permitted.