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Open CalculatorIndependent PowerGuardian scores out of 100 for relevant suppliers, as at 21 September 2026.
Octopus 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 SupplierBacked by ESB, So Energy combines competitive fixed tariffs with consistently strong service scores. A solid mid-market performer.
Compare SupplierEDF is a steady, financially robust supplier with mid-table service and fair fixed-tariff renewals. Few surprises in either direction.
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Real-world payback figures for UK home solar in 2026, including export rates, battery storage and break-even timelines.
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