According to the Office of Gas and Electricity Markets default tariff cap history, the typical dual-fuel direct-debit ceiling peaked at 4,279 pounds a year in the crisis period, and the July 2026 schedule still prices medium TDCV usage in four-figure pounds, see our methodology.
The verdict
Three levers move the bill: tariff (beat £1,862), usage (the £1,297 profile spread), and fabric efficiency, rank them by your standing-charge share, not by blog folklore.
Last updated: · PlainEnergyBills
Bills = annual standing charges + (elec_kWh × elec unit) + (gas_kWh × gas unit) from live cap rates and consumption_profile rows.
Lever 1, tariff
Compare fixed deals against your region's SVT ceiling. A deal that does not beat £1,862 after exit fees is not a saving. Standing charge and unit rate both matter, see the bill-split guide.
Lever 2, usage
The profile chart shows how far annual bills move when kWh change under identical rates. Heating setpoint, hot water, and large appliances usually dominate; LED bulbs rarely do.
Lever 3, fabric and kit
Insulation, draught-proofing, and heat-pump / boiler efficiency change the kWh you need before any tariff shopping. Treat them as multi-year investments measured against the live unit rates, not against a remembered 2022 peak.
Order of attack
If standing charges are a large share of your bill, tariff shopping for lower standing charges comes first. If unit costs dominate, usage and fabric work harder than chasing a 0.5p standing-charge difference.
What to do with this
Rank levers by your bill split, do not start with the cheapest tip on social media.
- Measure standing vs unit share first Bill-split guide →
- Check your region before shopping Region rankings →
- If debt risk is the issue, read support options Support guide →
Profile bills are modelled at the default-tariff cap, fixed deals, Economy 7, and heat pumps will differ.
Related guides
Every figure on PlainEnergyBills is rendered directly from Ofgem source data, no number is typed in by an editor. Profile bills are computed from live cap rates × consumption_profile kWh, no hand-typed annual totals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.