The energy price cap will rise by 13% on 1 October – the second increase this year and the largest single jump since the 2022 crisis. Ofgem confirmed the new level at £1,717 for a typical dual-fuel household paying by direct debit, up from £1,568. That is £149 a year more for the same gas and electricity.
As reported by the London Evening Standard, households are being urged to send in meter readings before the change takes effect. The advice is sound – but it is only a sticking plaster. The real question for UK homeowners is how to stop the cap from mattering at all.
Why a meter reading before 1 October saves you money
Suppliers estimate your usage between readings. If you do not submit a reading on 30 September, they will assume a portion of your October consumption happened before the cap rose – and bill it at the higher rate. A 13% swing on a month’s worth of gas and electricity for a typical 3-bed semi using 12,000 kWh per year works out at roughly £60. That is the cost of a family takeaway, or half a year’s standing charge.
Energy Saving Trust recommends submitting readings online or via your supplier’s app. Do it on the morning of 30 September, take a photo of the meter display, and keep the confirmation email. If your smart meter is working in half-hourly mode, you can skip this – but many older smart meters have lost functionality after supplier switches, so check first.
The catch is that this only works once. The next cap review is in January 2026, and analysts at Cornwall Insight expect another 3-5% rise. Meter readings are tactical. They do not reduce your consumption.
What the cap rise means for your EPC and long-term bills
The £149 annual increase pushes the average dual-fuel bill back towards the levels seen in early 2023, before wholesale prices fell. For a home with an EPC rating of D or below, the actual cost is higher – the cap is a per-unit limit, not a total bill cap. A draughty Victorian terrace using 18,000 kWh could see an extra £220 a year.
Ofgem’s own data shows that homes rated EPC C or above use 25-30% less energy than those rated D or E. The cap rise makes the payback period for insulation shorter. Loft insulation to 270 mm costs around £300-£400 and saves roughly £180 a year at current prices. Cavity wall insulation costs £500-£700 and saves £200-£250. Both pay back within three to four years – and that is before the next cap rise.
The Great British Insulation Scheme, which provides free or subsidised insulation for low-income households, reopened for applications in July. Eligibility is based on council tax band and EPC rating. Households in bands A-D in England and Wales can check at gov.uk. The scheme covers loft, cavity wall, and solid wall insulation.
Solar and heat pumps: the structural fix
A 13% cap rise adds urgency to the case for generation. A typical 4 kW solar panel system costs around £6,000-£7,000 and generates roughly 3,500 kWh per year – enough to cover 40-50% of a typical home’s electricity usage. At current unit rates of 24.5p/kWh, that is £860 a year in bill savings plus the Smart Export Guarantee payment of 5-15p per exported kWh.
Heat pumps remain the headline option for gas-free heating. The Boiler Upgrade Scheme offers £7,500 off the installation cost, and running costs are typically 20-30% lower than a gas boiler at current price cap levels. But the upfront cost after grant is still £3,000-£5,000 for a standard installation, and not every home is suitable without radiator upgrades or better insulation.
What this misses is that the cap rise disproportionately punishes homes that cannot afford the upfront investment. The government’s own impact assessment for the Warm Homes Plan – due to be published in full this autumn – is expected to show that 60% of the cap rise falls on the lowest-income households. That is a political choice buried in a regulatory announcement.
What you should do this week
Submit your meter reading on 30 September. Take a photo. Then use the saved £60 to buy draft excluders, radiator foil, and a smart thermostat timer – all of which pay back within a single winter. Book a free home energy assessment through the Energy Saving Trust’s local advice service if you are in Scotland or Wales, or through your council’s warm homes programme in England.
For homeowners considering structural upgrades, the cap rise is a signal to act before winter. Solar installers are already booking into November. Heat pump grants are fixed at £7,500 until March 2027. The longer you wait, the more cap rises you absorb.
Frequently Asked Questions
Yes. Suppliers typically adjust direct debits quarterly based on your usage and the cap level. If you submit a meter reading on 30 September, your October direct debit should reflect only the higher rate from that date onwards. Check your supplier's app or statement to see if the adjustment matches the cap change.
Fixed tariffs are currently 5-10% above the cap, so they offer no immediate saving. However, if you want certainty for 12 months and expect further cap rises, a fix could protect you. Compare deals on Ofgem's accredited comparison sites, but do not fix if you plan to install solar or a heat pump within the year – exit fees may apply.
