Some time ago I posted a discussion on the allowance decline within EU Emissions Trading System (EU ETS), with no new allowances available after 2058 based on the proposed linear rate of decline of 2.2% each year, but assuming that this would be brought forwards to 2050. Back in early 2020 the EU was in the first stage of laying out its ambition for the 2020s and I noted then;
Based on a continuation of the EU ETS under the current trajectory it won’t reach zero until the late 2050s. . . . Under a revised EU ETS, from January 1st 2050 (or perhaps 2051) there will be no further allocation of allowances, either by auction or freely given. Yet this may not be a time in which there are no emissions – thirty years is possibly insufficient time for the complete turnover of everything in the large emitters system.
A great deal of water has passed under the bridge since then and today as we look at the EU ETS, a radically different picture emerges. The EU has announced its Fit for 55 package and as part of that has also announced a significant change for the EU ETS. Notably, they have said;
In phase 4 of the EU ETS (2021-2030), the cap on emissions continues to decrease annually at an increased annual linear reduction factor of 2.2%. The Union-wide cap for 2021 from stationary installations is fixed at 1,571,583,007 allowances. The annual reduction corresponding to the linear reduction factor is 43,003,515 allowances. . . . . The Commission is proposing a new target to reduce emissions from the EU ETS sectors by 61% by 2030, compared to 2005 levels. This represents an increase of 18 percentage points compared to the -43% target under the existing legislation. To reach this target, the Commission proposes a one-off reduction of the overall emissions cap by 117 million allowances (‘re-basing’), and a steeper annual emissions reduction of 4.2% (instead of 2.2% per year under the current system).
The above is more easily viewed graphically and is shown below. As previously discussed, the original 2.2% line meant that the EU ETS finally reached zero new allowances in the late 2050s, but the changes proposed under Fit for 55 bring that forwards. Note that the rebasing proposal is a one-off reduction of 117 million allowances to bring the cap in line with a pathway that would have materialised if the 4.2% reduction factor would have been applied from 2021 onwards, but the chart below shows the new line as continuous from 2021.
The market doesn’t currently know what the plans are for post 2030 when annual allowance allocation will be around 800 million tonnes, but if the 4.2% linear reduction factor continues, then new allowance allocation will cease in 2041. That would bring the date for zero allocation forwards 17 years from the current 2.2% reduction factor line.
Zero emissions for the ETS sectors (power generation, industry, aviation and soon to include marine) in 2040 is incredibly ambitious and I could argue with some certainty that those same sectors won’t be emissions free in that time. There is no doubt that significant progress will have been made, but the idea that every plane will run on 100% sustainable aviation fuel or a new fuel, e.g. hydrogen, or that every cement plant will incorporate carbon capture and storage in just 18 years is unlikely. As such, the Commission will either have to alter the post 2030 trajectory or plan on a somewhat different outcome.
Altering the post 2030 trajectory such that the system reaches zero allowances in, say, 2050 may seem like the simple solution, but by the late 2020s when this could be under discussion, society may well be facing a situation where Europe both wants and needs to reach net-zero emissions prior to 2050. This would be linked with the global emissions pathway relative to the meagre carbon budget remaining for 1.5°C (now <400 Gt). In short, we will be heading for over-expenditure, which in turn means at least some regions reaching net-zero emissions even earlier than 2050. However, incorporating other sectors into the EU ETS, such as road transport, could also offer some flexibility with regards the decline rate of the cap.
The second approach is one that I have written a great deal about (e.g. here and here), but one that is still not part of the current EU ETS. It is to embrace net-zero and recognise that the ETS will need to become a platform for trading and surrendering carbon removal units against ongoing emissions. Removal units might come from within the EU in the form of units representing Direct Air Capture with geological storage (DACCS) or from outside under Article 6 of the Paris Agreement. The latter could include a much broader range of removals, such as the capture and storage of CO2 from ethanol manufacture in a country such as Brazil. Whatever is included will need to be the subject of extensive consultation, but without it the EU ETS will likely become an infeasible system (meaning that the only option for emitters is to default or shut down) as the zero allowances point is approached. The earlier that zero allowances is set, the more likely is the infeasibility.
Removals are near to becoming essential in Europe and it is important that the Commission accelerates its thinking on incorporating them within the EU ETS. Removals need to form part of the system within the 2020s, such that during the 2030s the mechanisms to create them can flourish and deliver.
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[…] In a 2022 publish I famous that the revised EU ETS allowance decline price constructed into the Match for 55 framework would take the system to zero new allowances in 2040, however that may nearly definitely be forward of the time limit at which there can be zero emissions within the lined sectors. As such, some type of new allowance can be wanted, with the plain candidate being a carbon removing unit introduced in as an exterior credit score. That may make the EU ETS a vibrant carbon removing buying and selling platform, making a marketplace for carbon removals and establishing a transparent worth. […]