Budget Energy will raise prices for 30,000 Northern Ireland customers by 9.5% from 1 November. The increase adds roughly £60 to a typical annual bill, according to the company. This is the third price rise from a Northern Ireland supplier in 2025, following similar moves by Power NI and SSE Airtricity.
The news, as reported by the BBC, highlights a persistent gap between Northern Ireland and Great Britain energy markets. Northern Ireland operates a separate electricity market with no price cap, leaving households exposed to wholesale swings. GB households, by contrast, have the Ofgem price cap—but that protection is eroding.
What the GB price cap misses
The cap will rise by £63 to £1,817 from October, Ofgem confirmed last week. That’s 3.6% on a typical dual-fuel bill. But the cap only limits unit rates and standing charges—it doesn’t stop network cost increases. Network charges, which make up about 20% of a bill, are rising by 12% this year, adding roughly £24 to the average electricity bill.
The catch is that wholesale costs, which fell through 2024, are creeping back up. Gas prices are 15% higher than a year ago, according to data from the energy regulator. That feeds directly into electricity generation costs. Budget Energy’s rise in Northern Ireland may be a canary in the coal mine for GB suppliers when the next cap review happens in February 2026.
Who qualifies—and who doesn’t
Northern Ireland households have no cap, but they can switch supplier more freely than GB customers. Budget Energy’s 9.5% rise applies only to its standard variable tariff. Customers on fixed deals are unaffected until their contract ends. The company said affected customers have been notified by post and can switch without exit fees.
GB households face a different problem. The cap applies to default tariffs, but 8 million households are on fixed deals that may be higher than the cap. Ofgem estimates that switching from a standard variable tariff to the cheapest fixed deal could save £150 a year. Yet switching rates are at a five-year low, data from Energy UK shows.
What it costs a typical 3-bed semi
For a 3-bed semi using 12,000 kWh of gas and 2,900 kWh of electricity per year, the October cap rise means an extra £5.25 a month. That’s the headline. But the real cost is in standing charges—up 8% since April, adding about £30 a year regardless of consumption. Energy Saving Trust notes that a home with an EPC rating of D or below spends £1,000 more on heating than a C-rated home.
Insulation is the single most effective measure. Cavity wall insulation costs £500–£1,500 and saves £200–£300 a year. Loft insulation at £300–£500 saves £150–£250. Combined, that’s a 30% reduction in heating demand. For a home spending £1,800 a year, that’s £540 saved—more than the cap rise.
The government’s Great British Insulation Scheme offers grants of up to £1,500 for low-income households. The Boiler Upgrade Scheme provides £7,500 for heat pumps. Both are open now, but applications for the insulation scheme close on 31 March 2027.
Households on standard variable tariffs should check their current rate against the cap. Those on fixed deals should note their end date and start comparing three months before it expires. Switching typically takes 17 days. The cheapest fixed deals are currently 8% below the cap, according to comparison site Uswitch. But those deals may not last—wholesale prices are trending up.
Frequently Asked Questions
Yes, if you're on a standard variable tariff. The Ofgem price cap will increase by £63 to £1,817 for typical dual-fuel households. However, your actual rise depends on usage and region. Check your bill for your current unit rate and standing charge, then compare with the new cap rates published on Ofgem's website.
Yes. Budget Energy has confirmed affected customers can switch to another supplier without exit fees. Northern Ireland has no price cap, so switching to a fixed deal or a different supplier is the best way to lock in a lower rate. Compare tariffs on the Consumer Council for Northern Ireland website.
