Updated October 2026
UK energy, ranked by what they promise
How 9 UK energy companies compare on refunds, service credits and compensation, read straight from their public terms.
1EDF EnergyEnergy86Excellent · 35 promises35£30 if switch isn't completed within 15 working daysNo deadline stated · Simple to claim2Good EnergyEnergy81Excellent · 15 promises15Credit if no first-time Smart meter appointment offered within 6/12 weeksNo deadline stated · Simple to claim4OVO EnergyEnergy76Excellent · 20 promises20Late final statement after leaving OVOClaim within 42 days · Simple to claim40British GasEnergy53Fair · 7 promises7Compensation for smart meter stuck out of smart mode over 90 daysClaim within 90 days · Takes a few steps45EcotricityEnergy50Fair · 7 promises7Ecotricity pays for accuracy test if meter found faultyNo deadline stated · Takes a few steps46Sainsbury's EnergyEnergy48Fair · 11 promises11Possible compensation for gas deficit emergencyNo deadline stated · Harder to claim51E.ON NextEnergy46Fair · 10 promises10Compensation for gas deficit emergencyNo deadline stated · Harder to claim53Octopus EnergyEnergy45Fair · 9 promises9Compensation for missed/late appointmentsNo deadline stated · Takes a few steps59So EnergyEnergy43Fair · 16 promises16Fixed price protection during contract termNo deadline stated · Takes a few steps
Questions
Energy: quick answers
Which energy company promises customers the most?
EDF Energy ranks first among UK energy companies in the Promise Index, with a Promise Score of 86 out of 100 and 35 promises in its terms.
Which energy company has the most promises in its terms?
EDF Energy, with 35 promises that give customers refunds, credit or compensation.
How are these companies compared?
We read each company's public terms, list every refund, credit and compensation promise, and score them. Compensation and service credits count most, and simple claims count more than ones that need forms or evidence.