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Climate Action

Auctioning of allowances

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Since 2013, auctioning has been the default method for distributing allowances in the EU ETS. This approach implements the 'polluter pays' principle, ensuring that those who emit pollutants pay for the right to do so.

Member States auction allowances according to the rules set out in the EU ETS Directive and Auctioning Regulation. This ensures that auctions take place in an open, transparent, harmonised, and non-discriminatory manner. The same rules apply to auctions of allowances for Iceland, Liechtenstein, and Norway, as well as the UK for what concerns electricity generation in Northern Ireland.

The Commission Decision of 17 December 2020 specifies the countries’ auction shares for general and aviation allowances for the 2021-2030 period. This distinction is made as separate cap calculations apply to emissions from power plants and industry installations as well as maritime operators (general allowances) and from aircraft operators (aviation allowances).

Over the 2021-2030 period, up to 57% of the general allowances will be auctioned, while the remaining allowances will be allocated for free to mitigate the risk of carbon leakage and incentivise the deployment of low-carbon technologies.

From the volume of allowances to be auctioned:

  • 90% is distributed among all Member States in auction shares corresponding to their historical emissions at the start of the system
  • 10% is distributed among 16 specific Member States for the purpose of solidarity

From July 2023 to August 2026, a certain volume of allowances from the Member States’ auctioning share and the Innovation Fund is redirected to the Recovery and Resilience Facility to raise EUR 20 billion for the REPowerEU Plan.

For allowances issued for aviation, about 15% has been auctioned. This percentage is gradually increased in 2024 and 2025 so that from 2026, most aviation allowances are auctioned (see FAQs for more details).

Auctioning revenues and their use

Auctioning of allowances in the EU ETS raises revenues for national budgets. Allowances earmarked for the Innovation Fund and the Modernisation Fund are also auctioned.

Since 2013, the EU ETS generated over EUR 200 billion in auction revenues. More detailed revenue figures are compiled in the Commission’s annual Carbon Market Reports. In 2023 alone, the system generated a total of EUR 43.6 billion in auction revenues. Out of this amount, EUR 33 billion was distributed directly to EU Member States.

The ETS Directive has long instructed Member States to use at least 50% of their auction revenues, and all revenues from aviation allowances, for climate- and energy-related purposes. Over the 2013-2020 period, Member States reported spending an average of 75% of their revenues on this type of projects, mostly focusing on renewable energy sources, energy efficiency improvements, and low-emission transport.

From mid-2023, Member States are required to spend all their EU ETS revenues (or an equivalent amount) in support of the green transition, including on measures to tackle its social impacts. Following the scope expansion of the EU ETS, Member States are also encouraged to support the decarbonisation of maritime transport as well the protection of marine biodiversity.

Under the Regulation on the Governance of the Energy Union and Climate Action, Member States report annually how their EU ETS revenues are used. The Commission takes stock of this reporting exercise in its annual Climate Action Progress Reports.

Auctioning rules

The Auctioning Regulation specifies the timing, administration and other aspects of auctioning to ensure it is conducted in an open, transparent, harmonised and non-discriminatory manner.

In October 2023, the Commission adopted a new Auctioning Regulation to take into account the revision of the EU ETS and the REPowerEU plan.

Auction platforms

28 countries (namely 25 EU Member States plus Iceland, Liechtenstein and Norway) auction their allowances on the common auction platform selected through a joint procurement procedure. Currently, the common auctioning platform is the European Energy Exchange (EEX) in Leipzig (Germany).

Germany, Poland and the UK (for what concerns Northern Ireland) have opted-out of the common auctioning platform. Germany has nominated EEX as their opt-out platform, while Poland and the UK are using EEX to auction their allowances until further notice.

Nomination of the common auction platform

The common auction platform is nominated for a period of five years, extendable to a maximum of seven years, by a joint procurement between the Commission and Member States, in accordance to the rules laid down by the Joint Procurement Agreement. For third parties, the Commission is the sole point of contact for information concerning the joint procurement procedures.

The procurement procedures are published on the Tender Electronic Daily (e-Ted) platform.

Auction calendars

Auction calendars are determined by the auctioning platform. This is done in accordance with the requirements set by the Auctioning Regulation for what concerns the timing, frequency and distribution of auctioning volumes.

The current auction calendar includes the dates and volumes of general and aviation allowances to be auctioned per Member State, as well as for the Innovation Fund and Modernisation Fund. These are available on the auctioning platform’s webpage.

Auction results are made available daily on the auctioning platform’s webpage, while detailed auction reports are published on a quarterly basis. The latter provide more information on the auctions – including results, participants and generated revenue – for the 27 Member States, as well as Iceland, Liechtenstein and Norway. Auction reports are available in the Documentation section below.

Documentation

Auction reports

Please note that the Commission bears no responsibility for the contents of the reports prepared by Germany and the United Kingdom.

FAQ

Questions and Answers: Auctioning

Questions and Answers: History of the auctions

Questions and Answers: Auctioning process

Questions and Answers: Auctioning rules

Questions and Answers: Joint procurement of the common auction platform

Opt-out auction platforms