The UK Emissions Trading Scheme Authority confirmed on August 26 that its planned expansion of carbon pricing to waste incineration will not take place in 2028 as originally intended, and it gave no replacement date. A revised implementation timeline and final policy design will be announced “in due course”, with the waste sector promised time to prepare. For energy-from-waste operators, local authorities and carbon market participants, the decision removes the most concrete near-term source of new UK ETS demand from the calendar and pushes one of the scheme’s biggest design questions back into uncertainty.
What the Authority Announced
The statement is short but unambiguous: inclusion of energy-from-waste (EfW) plants and waste incineration without energy recovery will not happen in 2028. The Authority, which brings together the UK government and the devolved administrations of Scotland, Wales and Northern Ireland, committed only to publishing a revised timeline and final policy design later, saying the sector would be given time to prepare.
The announcement formalizes a drift that had been visible for some time. Industry observers noted as early as September 2025 that the Authority had removed any fixed date for full inclusion from its communications. What is new this week is the explicit confirmation that the 2028 anchor, around which operators, councils and investors had been planning, is gone.
The Original Plan: Fossil CO2 From Waste by 2028
The expansion had been in the works since 2023, when the Authority first confirmed its intention to bring the waste sector into the scheme. A 2024 consultation then set out the detailed design: from January 2028, EfW facilities would have had to surrender allowances for the fossil-derived CO2 in their emissions, the carbon contained in plastics, textiles and other fossil materials burned in residual waste. Biogenic CO2, from food and organic waste, would have stayed outside the scheme.
The runway was supposed to be gradual. An interim response published in July 2025 introduced a voluntary monitoring, reporting and verification period starting in 2026, giving operators two years of measured emissions data before compliance obligations began. That MRV phase is now underway, but the compliance stage it was preparing for no longer has a date.
The stakes were never trivial for local government. Because councils contract much of the UK’s residual waste treatment, the consultation design meant ETS costs could be passed through to local authorities, which have no control over how much plastic ends up in the waste stream.
Why the Timeline Broke
The reaction from local government bodies explains the political math behind the delay. The Local Authority Recycling Advisory Committee (LARAC) welcomed the decision, with chair Gareth Rollings calling it “massive relief” for councils facing “significant but still uncertain additional costs”. LARAC’s condition for the final design is telling: local authorities, it said, must not be left liable for materials they did not produce and cannot remove from the waste stream.
ADEPT, the association of local authority directors, struck the same note. Wendy Barratt, chair of its Waste Working Group, said the original timeline would have landed the ETS cost burden largely on local authorities “at a time when financial resources are already stretched”, and framed the delay as an opportunity to put in place the policies and infrastructure needed to decarbonise residual waste.
Read together, the delay is less a retreat from pricing waste emissions than an admission that the cost allocation problem was never solved. Who pays for the fossil carbon in residual waste, the producer, the council, the taxpayer or the operator, remains the unresolved core of the policy.
What the Delay Means for Operators, Councils and the Market
For EfW operators, the immediate effect is deferred compliance cost and prolonged regulatory risk. Capital decisions about carbon capture retrofits, plastics sorting and heat networks all depended on a credible carbon price signal arriving on a known date. A floating timeline weakens the investment case for exactly the abatement spending the policy was meant to trigger, even as the voluntary MRV period keeps generating the data any future design will rely on.
For local authorities, the delay is fiscal breathing room, but not a resolution. The liability question LARAC raised will resurface in whatever design comes next, and councils drafting long-term waste contracts still have to guess at the eventual pass-through terms.
For carbon market participants, the significance is demand timing. Waste inclusion was the most concrete expansion of UK ETS coverage on the books, and its postponement removes a source of future allowance demand that traders and investors had penciled in for the late 2020s. It also lands in a sensitive moment for UK ETS politics: London and Brussels are discussing linking their carbon markets, with UK prime minister Andy Burnham suggesting a summit could happen as early as November. Scope alignment between the two schemes is one of the technical prerequisites for any link, and an open-ended waste timeline makes that mapping harder to read on the UK side.
What to Watch
Three markers will show where this goes. First, the revised timeline itself: whether the Authority names a new year or moves to an explicitly conditions-based trigger will signal how firm the commitment remains. Second, the final policy design, and in particular how it allocates costs between waste producers, operators and local authorities, the question that sank the 2028 date. Third, the voluntary MRV data now being collected: the first verified emissions numbers from the sector will shape both the cap setting and the political debate when inclusion returns to the agenda, and they are the one part of the original plan that is still running on schedule.
