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ETS - Emission Trade System

ENVIRONMENT
The European Union Emissions Trading System - EU ETS is the European trading system for greenhouse gas emissions quotas. It is the main tool adopted by the European Union to achieve CO2 reduction objectives in the main industrial sectors and in the aviation sector.

Introduced by Directive 2003/87/EC, the mechanism establishes an overall maximum ceiling on emissions allowed on the European territory in the sectors concerned, which corresponds to an equivalent number of allowances that can be bought/sold on a specific exchange market.

Each industrial operator active in the sectors covered by the scheme must "offset" its actual emissions (verified by an independent third party) on an annual basis with a corresponding amount of allowances. The accounting of the compensations is kept through the Single Union Register while the control over deadlines and compliance with the rules of the mechanism is entrusted to the National Competent Authorities.
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The shares can be allocated against payment or free of charge. In the first case, they are sold through public auctions in which accredited subjects participate who buy mainly to offset their emissions. And they can also be traded on the secondary carbon market. In the second case, the quotas are assigned free of charge to operators at risk of relocation of production to countries characterized by less stringent environmental standards than European ones.

The consolidated version of Directive 2003/87/EC, updated as of 1 March 2024, incorporates significant amendments introduced by Directives (EU) 2023/958 and 2023/959. These changes are part of the EU's "Fit for 55" package, aiming to align the EU Emissions Trading System (EU ETS) with the European Climate Law's target of at least a 55% net reduction in greenhouse gas emissions by 2030 compared to 1990 levels.


Key Amendments to Directive 2003/87/EC

  1. Extension of Scope to Maritime Transport
    • From 1 January 2024, the EU ETS includes maritime transport activities. This extension covers greenhouse gas emissions from ships above 5,000 gross tonnage, regardless of their flag, for voyages between EU ports and between EU and third-country ports. This inclusion aims to reduce emissions in the maritime sector and promote cleaner shipping practices.
  2. Introduction of a Separate ETS for Buildings and Road Transport (ETS 2)
    • A new emissions trading system (ETS 2) will be established for the buildings and road transport sectors, starting in 2027. This system will operate separately from the existing EU ETS and is designed to address emissions from these sectors more effectively. 
  3. Adjustment of Free Allocation Rules
    • Free allocation of emission allowances will be gradually phased out for sectors covered by the Carbon Border Adjustment Mechanism (CBAM). Additionally, from 1 January 2026, free allocation for electricity generators will be removed. These changes aim to strengthen the carbon pricing signal and encourage investments in low-carbon technologies.
  4. Conditionality Based on Energy Efficiency Improvements
    • Free allocation of allowances is now conditional upon the implementation of energy efficiency improvement measures. Installations receiving free allocations must implement recommendations from energy audits or certified energy management systems. Failure to do so may result in a reduction of free allowances by up to 20%
  5. Inclusion of Additional Activities
    • The scope of the EU ETS has been expanded to include additional activities such as the production of hydrogen, aluminium, and alumina, as well as the transport of CO₂ through means other than pipelines. This expansion ensures a more comprehensive coverage of emissions across various industrial sectors. 
  6. Enhanced Monitoring and Reporting Requirements
    • Operators are now subject to stricter monitoring and reporting obligations, including the requirement to submit verified emissions data and climate-neutrality plans. These measures aim to improve the accuracy and transparency of emissions reporting within the EU ETS. 

These amendments represent a significant step in the EU's efforts to achieve climate neutrality by 2050, ensuring that the EU ETS remains a central tool in reducing greenhouse gas emissions across the Union.



Auctioning


​Auctioning is the most transparent method for allocating emission allowances and puts into practice the principle that the polluter should pay. Businesses covered by the EU Emissions Trading System (EU ETS) have to buy an increasing proportion of allowances through auctions.

In 2023, the EU adopted a 
series of legislative acts setting out rules to achieve climate neutrality in the EU by 2050, including the intermediate target of an at least 55% net reduction in greenhouse gas emissions by 2030. The package aimed at to revise several pieces of EU climate legislation, including the EU ETS, 
  • Directive (EU) 2023/959 of the European Parliament and of the Council of 10 May 2023 amending Directive 2003/87/EC establishing a system for greenhouse gas emission allowance trading within the Union and Decision (EU) 2015/1814 concerning the establishment and operation of a market stability reserve for the Union greenhouse gas emission trading system (Text with EEA relevance)
  • Decision (EU) 2023/852 of the European Parliament and of the Council of 19 April 2023 amending Decision (EU) 2015/1814 as regards the number of allowances to be placed in the market stability reserve for the Union greenhouse gas emission trading system until 2030 (Text with EEA relevance)
    Commission Proposal: Revision of the EU Emissions Trading System Directive for aviation
  • Decision (EU) 2023/136 of the European Parliament and of the Council of 18 January 2023 amending Directive 2003/87/EC as regards the notification of offsetting in respect of a global market-based measure for aircraft operators based in the Union (Text with EEA relevance)​​​


Auctioning rules

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  • Regulation (EU) 2023/857 of the European Parliament and of the Council of 19 April 2023 amending Regulation (EU) 2018/842 on binding annual greenhouse gas emission reductions by Member States from 2021 to 2030 contributing to climate action to meet commitments under the Paris Agreement, and Regulation (EU) 2018/1999 (Text with EEA relevance)
  • Regulation (EU) 2023/839 of the European Parliament and of the Council of 19 April 2023 amending Regulation (EU) 2018/841 as regards the scope, simplifying the reporting and compliance rules, and setting out the targets of the Member States for 2030, and Regulation (EU) 2018/1999 as regards improvement in monitoring, reporting, tracking of progress and review (Text with EEA relevance)
  • Regulation (EU) 2023/851 of the European Parliament and of the Council of 19 April 2023 amending Regulation (EU) 2019/631 as regards strengthening the CO2 emission performance standards for new passenger cars and new light commercial vehicles in line with the Union’s increased climate ambition (Text with EEA relevance)
  • Regulation (EU) 2023/955 of the European Parliament and of the Council of 10 May 2023 establishing a Social Climate Fund and amending Regulation (EU) 2021/1060
  • ​​Impact Assessment: 2030 Climate Target Plan
From 2021, the UK is no longer part of the EU, however, pursuant to the Protocol of Ireland and Northern Ireland, the EU ETS applies to electricity generation located in Northern Ireland. Therefore, the UK will auction a small volume of allowances corresponding to its share in the Union-wide cap.

The allowances made available to the Innovation Fund and to the Modernisation Fund are auctioned too. Allowances for the stationary installations (general allowances) are auctioned, unless they are allocated for free or placed in the Market Stability Reserve (MSR).

In total, the Commission estimated that 57% of the total amount of general allowances were auctioned in phase 3. In phase 4 (2021-2030), the share of allowances to be auctioned remains the same.

In accordance with the ETS Directive, in the aviation sector, 15% of all issued aviation allowances are auctioned (see FAQ).
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The Member States’ auction shares of general allowances and aviation allowances for phase 4 are published in Commission Decision (EU) 2020/2166 of 17 December 2020.
Auction platforms

28 countries (25 EU Member States and 3 EEA/EFTA countries) auction their allowances on the common auction platform. To this end, they have signed a Joint Procurement Agreement.
Currently, the European Energy Exchange (EEX) in Leipzig is the common auction platform.

Germany and Poland have opted-out of the common auctioning platform. Germany has nominated EEX as its opt-out platform, while Poland is making use of the common auction platform (EEX) to auction its allowances until further notice.

The common auction platform is nominated for up to five years by a joint procurement between the Commission and the participating countries, 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 Tender Electronic Daily (e-Ted). Documents on past and ongoing tenders are also accessible via the contracts and grants pages.


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Auctioning revenues and their use


The total revenues generated by Member States, the UK and EEA countries from the auctions between 2012 and 30 June 2020 exceeded EUR 57 billion.
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In 2019 alone, the generated total revenues were above EUR 14 billion, while in the first half of 2020 they reached EUR 7.9 billion.
The ETS Directive provides that Member States should use at least 50% of auctioning revenues or the equivalent in financial value for climate and energy-related purposes. Based on the most recent information, around 78% of revenues in 2013-2019 were used for climate and energy related purposes.

Member States are requested to report annually on the amounts and use of the revenues generated, under the Regulation on the Governance of the Energy Union and Climate Action. The total figures are annually reported in the Carbon Market Report.

Sources: European Union, http://www.europa.eu/, 1995-2025, 

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