How to Read Your UK Energy Bill

    Energy bills are intentionally dense. Here's a plain-English guide to the bits that actually matter — and the bits suppliers hope you don't read.

    Key sections to find

    • Tariff name — tells you if you're on a fixed deal or the default variable cap.
    • Unit rate (p/kWh) — what you pay per unit of energy used.
    • Standing charge (p/day) — the daily fixed cost.
    • MPAN / MPRN — your unique electricity / gas meter numbers.
    • Meter reads — actual vs estimated. "E" means estimated.
    • Personal projection — supplier's estimate of your annual cost.
    • Cheapest tariff message — required by Ofgem; ignore if you've already compared elsewhere.

    Red flags to watch for

    • Estimated reads for more than 2 cycles → submit a real read now.
    • Big credit balance (£200+) → request a refund.
    • Direct debit increased without notice → challenge it.
    Check if you're overpaying

    How to Check an Energy Bill for Mistakes

    A practical UK guide to checking unit rates, standing charges, meter readings and account credit line by line — with a printable checking worksheet and a supplier complaint template.

    PDF guide · Information checked 1 August 2026 · free, no email required

    Download the free guide

    Frequently Asked Questions

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    Energy bills and the price cap

    Read the UK energy bills and price cap guide for the full picture.

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    Compare Energy Suppliers

    Independent PowerGuardian scores out of 100 for relevant suppliers, as at 21 September 2026.

    British Gas

    55/100

    The 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 Supplier

    EDF Energy

    73/100

    EDF is a steady, financially robust supplier with mid-table service and fair fixed-tariff renewals. Few surprises in either direction.

    Compare Supplier

    Octopus Energy

    92/100

    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 Supplier

    Frequently Asked Questions

    Quick answers to the questions people ask most about this topic.

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    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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