The energy price cap rises by £63 on Wednesday, the third increase this year. Millions of households on standard variable tariffs will see their annual bill climb to £1,923 from 1 October. The change, confirmed by Ofgem last month, adds pressure to budgets already stretched by higher food and mortgage costs.
As The Guardian reported, energy suppliers and consumer groups are urging households to submit meter readings before the cap rises. The logic is simple: if your supplier does not have an accurate reading for the period before Wednesday, it will estimate your usage and may charge you the higher rate for energy you used at the old, lower price. That overcharge typically runs to £20-£30 on the next bill, according to Citizens Advice.
Who qualifies, and who doesn’t
Households on standard variable tariffs, about 28 million homes, will see the cap rise automatically. Those on fixed-rate deals are unaffected until their contract ends. Smart meter users do not need to submit readings; their data is sent remotely. But the 45% of homes still using manual meters need to act before Wednesday.
The catch is that not all suppliers make it easy. Some require online portal submissions, others accept photos of the meter. A few still insist on phone calls. Energy Saving Trust recommends checking your supplier’s website now and submitting the reading as close to Wednesday as possible, ideally on the day itself.
What it costs a typical 3-bed semi
Ofgem’s cap applies to unit rates and standing charges, not total bills. A typical 3-bed semi using 12,000 kWh of gas and 2,900 kWh of electricity will see the annual cost rise from £1,860 to £1,923, an increase of 3.4%. But the actual saving from a timely meter reading depends on how much energy you used in the final days of September. A household using 10 kWh a day in that period saves about £2.50 per day of overlap. For a week of overlap, that is roughly £17.50.
Yet the bigger picture is that the cap itself is a blunt tool. It does not stop suppliers from adding standing charges, currently about 60p a day for electricity and 30p for gas, which hit low-users hardest. A single-person household in a flat using 1,500 kWh a year pays nearly £200 in standing charges alone, regardless of when they submit a reading.
How this affects your EPC and long-term costs
Submitting a meter reading is a short-term fix. The real lever for reducing bills is improving your home’s energy efficiency. The price cap rise is driven by wholesale gas costs and network charges, factors outside your control. But cutting your consumption through insulation, draught-proofing, or a heat pump locks in savings that compound year after year.
An EPC rating of C or above typically cuts annual energy bills by £300-£400 compared to a D-rated home, according to Energy Saving Trust. The government’s Great British Insulation Scheme and Boiler Upgrade Scheme offer grants of up to £7,500 for heat pumps. Yet fewer than 10% of eligible homes have applied, partly because the process is opaque and partly because many households do not know they qualify.
What this misses: the price cap rise is a symptom of a broken system. The UK has the least energy-efficient housing stock in western Europe, with 19 million homes rated D or below. Each winter, billions of pounds leak through walls and roofs, money that could be invested in retrofits. Until the government mandates minimum EPC standards for all homes, the annual ritual of meter-reading before a price rise will remain a sticking plaster on a gaping wound.
Households on standard variable tariffs should submit a meter reading online or by phone before Wednesday. Smart meter users can ignore this. Everyone else should check their supplier’s deadline, some accept readings up to midnight, others require them by 5pm. The savings are small but certain. And if you have not yet applied for a home energy grant, check your EPC and eligibility on gov.uk before the next price cap review in January.
Frequently Asked Questions
No. Smart meters send readings automatically to your supplier, so you do not need to do anything. The price cap rise will be applied correctly from Wednesday without manual input.
A typical household saves between £20 and £30 on their next bill, depending on energy use in the final days before the rise. The exact figure depends on your consumption and supplier's estimation method.
