The price cap will rise by £63 this week, the third increase in twelve months. For a typical household on a standard variable tariff, that means an annual bill of roughly £1,717, according to Ofgem’s latest figures. The rise is driven by higher wholesale electricity costs and network charges, not by any sudden leap in green levies.
Electrifying.com reported that electricity prices are expected to rise this week, citing market analysts who point to tighter supply margins and higher gas prices feeding into power generation costs. The full analysis is available on their site: Electrifying.com. The piece notes that the increase follows a pattern of volatility that has become the norm since 2021.
Who pays the £63, and who doesn’t
Every household on a standard variable tariff or default tariff is affected. Those on fixed-rate deals locked in before the summer are shielded until their contract ends. But about 22 million homes remain on variable tariffs, according to Ofgem data. The £63 figure assumes a typical dual-fuel household using 12,000 kWh of gas and 2,900 kWh of electricity a year. If you use more, larger homes, electric heating, older appliances, your increase will be higher.
The catch is that electricity now costs more than three times as much per kWh as gas: roughly 24p versus 7p. That makes electric heating, including heat pumps, a tougher sell for households on tight budgets, even though heat pumps are three to four times more efficient. The Energy Saving Trust calculates that a typical air-source heat pump can save £200–£400 a year compared to an old gas boiler, but those savings shrink if electricity prices keep rising.
What this means for eco-upgrade decisions
For homeowners weighing solar panels, heat pumps, or insulation, the price rise changes the maths. Solar panels generate electricity when the sun shines, roughly 10–15% of a household’s annual usage, depending on orientation and roof size. At 24p per kWh saved, a 4 kW system saves about £200–£300 a year on bills, plus the Smart Export Guarantee pays for excess exported at around 5p per kWh. Payback periods of 10–15 years are common, but rising electricity prices shorten that window.
Heat pumps face a different problem. The Boiler Upgrade Scheme offers £7,500 towards installation, but running costs depend heavily on electricity tariffs. A heat pump using 4,000 kWh a year at 24p per kWh costs £960, compared to a gas boiler using 12,000 kWh at 7p, costing £840. Without a time-of-use tariff or solar self-consumption, the heat pump loses. Yet with a smart tariff like Octopus Cosy, off-peak rates drop to 12p, cutting running costs to £480. The lesson: heat pumps work best with a smart tariff and good insulation, not as a standalone swap.
Insulation remains the fastest payback
Loft insulation costs about £300–£700 for a typical 3-bed semi and saves £150–£200 a year, according to the Energy Saving Trust. Cavity wall insulation runs £700–£1,500 and saves £200–£300 a year. Both pay back within three to five years, regardless of electricity prices. Draught-proofing costs £100–£200 and saves £30–£50 a year. These upgrades also improve EPC ratings, a D-rated home can jump to a C with loft and cavity insulation alone.
But the government’s Great British Insulation Scheme has been slow to roll out, with only 15,000 homes upgraded in its first year, far below the 300,000 target. Households on low incomes or in lower council tax bands may qualify for free or heavily subsidised insulation via the Energy Company Obligation (ECO4). Check eligibility on gov.uk. For everyone else, the payback is clear: insulation first, generation second.
What to do this week
Switch to a fixed-rate tariff if you can find one below the cap, a few suppliers offer fixes at 5–10% below the new cap. Install a smart meter to track usage and access time-of-use tariffs. Book an insulation survey before winter. And if you’re considering solar or a heat pump, get quotes now: installation wait times stretch to six months in some regions, and grant funding cycles close at the end of March 2027 for the Boiler Upgrade Scheme. The £63 rise is painful, but it’s also a signal to act before the next one.
Frequently Asked Questions
Yes, likely. Fuel poverty affects households that spend more than 10% of income on energy. The £63 rise adds about £5.25 a month to bills. For a household already spending £1,650 a year, that pushes the threshold higher. The government estimates 3.5 million UK homes are already in fuel poverty, this rise will increase that number.
It depends on your tariff and insulation. With a standard variable tariff, a heat pump may cost more to run than a gas boiler. But with a time-of-use tariff and good insulation, it can save money. The £7,500 grant helps offset upfront costs. Get a full running-cost estimate from an MCS-certified installer before deciding.
