Energy Company Obligation extended to 31 December 2026

The UK has formally pushed back the end of ECO4, the Energy Company Obligation, from 31 March 2026 to 31 December 2026. Ministers say the extra time is to finish existing targets and fix poor installations. The change is made by a Statutory Instrument covering Great Britain and approved by both Houses, with the Department for Energy Security and Net Zero confirming the new end date on GOV.UK. (hansard.parliament.uk)

If you’re new to ECO, here’s the plain‑English version we teach in classrooms. ECO is a rule that makes larger energy suppliers fund energy‑saving upgrades in people’s homes, especially for low‑income or vulnerable households. Ofgem, the energy regulator, explains that the scheme is designed to cut fuel poverty and reduce carbon emissions; it isn’t a cash grant and support levels vary by supplier. (ofgem.gov.uk)

Who can benefit? Households on certain income‑related benefits may qualify, and there’s also ECO4 Flex, where councils in England and Wales and the devolved administrations in Scotland and Wales can refer residents on low incomes or with health conditions linked to living in cold homes. Ofgem’s guidance for homeowners and tenants also notes typical eligibility and the option to contact any obligated supplier-not just your own. (ofgem.gov.uk)

The new timetable matters. The core ECO4 target now ends on 31 December 2026, and several administrative deadlines move into early and mid‑2027. Examples set out in the order include steps now falling on 1 January 2027, 31 March 2027, 1 April 2027, and 1 July 2027, plus a reporting window running from 1 April to 30 June 2027. These changes sit alongside a firm cut‑off of 31 March 2026 for applying to have Innovation Measures or Data Light Measures approved. Ofgem has updated its guidance to reflect that no new IM or DLM applications are accepted after that date. For the exact legal list, see the Statutory Instrument text. (legislation.gov.uk)

One useful distinction for students: the ECO4 extension does not change the separate Great British Insulation Scheme (GBIS). The government’s consultation outcome confirms GBIS still ends on 31 March 2026. That means insulation offers some households may have seen under GBIS won’t run to December. If you’re checking options for someone, note the different schemes and dates. (gov.uk)

Ministers also decided there will be no successor obligation to ECO4 and therefore no ‘carry‑over’ of work into a future ECO scheme. The consultation response explains that the nine‑month extension is about finishing responsibly and improving consumer protection after quality issues, including remediation of non‑compliant installations flagged by the National Audit Office and discussed by MPs and peers. (gov.uk)

What this means for you: if you teach or support families, you can point people to official routes. Ofgem lists obligated suppliers and stresses that ECO is not a grant and may involve a contribution, so it’s wise to seek more than one quote and check TrustMark credentials. The Lords debate record also makes clear why the timetable was shifted: to allow suppliers to meet targets and complete remediation, before the scheme closes. (ofgem.gov.uk)

Quick recap to use in class or community workshops. ECO4 now runs to 31 December 2026 across Great Britain. Applications for new Innovation or Data Light approvals closed on 31 March 2026. Several supplier administration and reporting steps roll into 2027-spanning February, March, April and July, with a 1 April to 30 June 2027 window in the Order. For scheme basics and eligibility, start with Ofgem’s consumer pages; for policy detail and the new dates, use the government’s consultation outcome and the Statutory Instrument. (ofgem.gov.uk)