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UK Energy Bills — Frequently Asked Questions
Straight answers about the price cap, switching, fixed vs variable tariffs, predictions and bill support — sourced from Ofgem, GOV.UK and Citizens Advice.
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Energy Bill Calculator
Enter your kWh usage, unit rate and standing charge for daily, monthly and annual totals.
Open CalculatorStanding Charge Calculator
What the daily standing charge costs you over a month and a year, gas and electricity.
Open CalculatorShould I Switch Energy Supplier?
Is switching worth it right now? A decision framework using the current cap and fixed-deal evidence.
Open CalculatorCompare Energy Suppliers
Independent PowerGuardian scores out of 100 for relevant suppliers, as at 14 September 2026.
British Gas
55/100The UK's largest supplier remains financially rock-solid but service and complaint metrics continue to lag the market, with smart-meter billing delays a recurring theme.
Compare SupplierEDF Energy
73/100EDF is a steady, financially robust supplier with mid-table service and fair fixed-tariff renewals. Few surprises in either direction.
Compare SupplierOctopus Energy
92/100Octopus continues to lead the UK market on customer service and complaint handling, backed by genuinely competitive smart tariffs and strong financial backing. The clear front-runner on our intelligence dashboard.
Compare SupplierFrequently Asked Questions
Quick answers to the questions people ask most about this topic.
Free PowerGuardian Report
Standing Charges Report
A deep dive into the daily fixed fees on every UK bill — regional differences, drivers and the case for reform.
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