Ofgem’s price cap will rise by £63 in October, the third increase in 12 months. That’s £63 on a typical dual-fuel direct debit bill, or roughly £5.25 a month. For the 6.5 million UK households already in fuel poverty, it’s another squeeze. Against that backdrop, a new proposal to give millions of homes free energy upgrades, insulation, solar panels, heat pumps is welcome. It is overdue.
The plan, as reported by The Cool Down, would see the government or energy suppliers cover the full cost of measures that typically run into thousands of pounds. Loft insulation alone costs £300–£600 for a semi-detached house. A solar PV system can hit £5,000–£7,000. For a household on a tight budget, those figures are impossible. The plan aims to remove that barrier entirely.
Who qualifies, and who doesn’t
The proposal targets the 6.5 million households in fuel poverty, those spending more than 10% of income on energy. That group overlaps heavily with homes rated EPC D or below, which lose heat faster than a sieve retains water. Under current schemes like the Energy Company Obligation (ECO4), eligibility is means-tested and tied to benefits. The new plan appears broader, potentially covering owner-occupiers and private tenants in poorly insulated homes, regardless of benefit status.
But the catch is capacity. ECO4 already struggles with installer shortages and long wait times. Adding millions more eligible homes without a parallel investment in training and supply chains would simply shift the bottleneck from cost to queue. The government has not confirmed a timeline, but officials have hinted at a phased rollout starting in 2025.
What it costs a typical 3-bed semi
Assume a 3-bed semi built in the 1970s, with an EPC rating of D and annual gas and electricity bills of £1,800. Upgrading to a C rating, through loft insulation, cavity wall fill, and smart heating controls, could cut bills by £300–£400 per year, according to Energy Saving Trust estimates. If the plan also includes solar panels, the saving jumps to £600–£800, though that depends on roof orientation and shading.
The upfront cost for those measures: roughly £4,000–£6,000. Under the proposed plan, the household pays zero. The cost is recovered through energy bills over time, or via a levy on suppliers. The Treasury has not published a final funding model, but the principle is clear: the investment is cheaper than the annual subsidy for fuel poverty support, which runs at £2.5 billion a year via Warm Home Discount and other programmes.
The EPC impact, and the resale value
Improving an EPC rating from D to C adds an estimated 5–8% to a home’s resale value, according to Nationwide Building Society data. For a £250,000 semi, that’s £12,500–£20,000. The free upgrade effectively becomes a capital gain, not just a bill reduction. For homeowners planning to sell within five years, the financial case is overwhelming.
Yet the real prize is carbon. The UK’s 29 million homes produce roughly 20% of national emissions. Retrofitting at scale is the only way to hit the 2050 net-zero target. This plan, if executed properly, could cut household emissions by 1.5–2 tonnes of CO2 per year per property, equivalent to taking 2 million cars off the road.
What homeowners should do now
Check your EPC rating. If it’s D or below, and your household income is below £31,000 (or you receive means-tested benefits), you may already qualify for ECO4 grants. Applications are open through your energy supplier. For those who don’t yet qualify, register interest with your local authority or the Energy Saving Trust. The new plan is not law yet, but the political momentum is strong, and the cost of waiting is another winter of higher bills.
Frequently Asked Questions
Yes, if the plan passes as proposed. Unlike ECO4, which prioritises tenants and benefit claimants, the new scheme could extend to owner-occupiers in homes rated EPC D or below. You would not need to be on benefits, but your property must meet the eligibility criteria for poor energy performance.
Current ECO4 schemes have installation waits of 6–18 months due to installer shortages. The new plan aims to reduce that by training more certified installers, but no official timeline has been set. Expect at least 9–12 months from application to completion for most households.
