The verdict
Standing charges are 24% of a Low usage (flat or small terrace, 1-2 adults) bill and only 12% of a High usage (4+ bed detached, 4-5 occupants) bill under the July – September 2026 cap, the fixed layer hits light users hardest.
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Computed from live cap unit rates + standing charges against each consumption_profile row. Annual standing = £315.
The two components
Every UK energy bill has two cost components: a per-kWh unit rate that scales with consumption, and a daily standing charge that applies regardless of consumption. Under the current cap, electricity is 26.1p/kWh plus 57.2p/day; gas is 7.3p/kWh plus 29.0p/day. Annualised, standing charges alone reach £315 before any energy is used.
Why standing charges exist
Standing charges recover fixed costs of providing the connection regardless of usage: meter infrastructure, billing systems, customer service, smart meter rollout, network maintenance. The post-2022 rise reflects costs of dealing with supplier failures during the energy crisis, Ofgem allowed suppliers to recover those costs via standing charges.
Which dominates for low users
For lighter profiles in our corpus, standing charges already claim roughly a quarter to a third of the annual bill. For very low users (one-person flats, holiday homes), standing charges can approach or exceed consumption charges, creating a structurally regressive pattern, lighter users pay disproportionately more per kWh than heavier users.
Which dominates for high users
For heavier profiles, standing charges shrink toward ~10% of the bill, unit costs at scale dwarf the fixed layer. Heavy users benefit most from rate-shopping; standing-charge differences across providers are typically small per day, but unit-rate differences multiply across thousands of kWh.
The 2024 consultation on standing-charge reform
In 2024 Ofgem opened a formal consultation on restructuring the standing charge, exploring options including (a) reducing the standing charge and increasing the unit rate to recover the same total revenue, (b) introducing a multi-tiered standing charge based on consumption band, or (c) socialising the failed-supplier cost recovery across all suppliers rather than via per-customer standing charges. The outcome remains unsettled.
How to think about your bill
Pull last year's bills and split actual annual cost into the standing-charge total and consumption-charge total. Households with high standing-charge share should prioritise suppliers with lower standing charges. Households with high consumption-charge share should prioritise reducing kWh through insulation, heating-system upgrades, or appliance efficiency.
What to do with this
Split your bill before you shop, standing share decides whether rate or fixed-charge shopping matters more.
- See how standing charges moved since 2021 Trajectory →
- Compare regional dual-fuel bills at identical usage Region rankings →
- Read the standing-charge reform context Controversy guide →
Shares use Ofgem cap rates × published consumption profiles, your meter, payment method, and fixed deal will differ.
Related guides
Every figure on PlainEnergyBills is rendered directly from Ofgem source data, no number is typed in by an editor. Standing shares are computed from live cap rates and consumption_profile rows, no hand-typed percentages. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.