EU ETS Auctioning Regulation (Commission Regulation (EU) No 1031/2010 of 12 November 2010 on the timing, administration and other aspects of auctioning of greenhouse gas emission allowances) represents a uniform EU legal base for the operation of the European primary market for carbon permits.




28 July 2023

The opening of the public feedback period on Commission Delegated Regulation supplementing Directive 2003/87/EC of the European Parliament and of the Council by laying down rules on the timing, administration and other aspects of auctioning of greenhouse gas emission allowances, Ref. Ares(2023)5241866 

14 December 2022

Provisional agreement reached on REPowerEU - amendment of EU ETS Directive establishes modalities for the auctioning of allowances released from the Market Stability Reserve and transfer of the generated € 20 billion revenues to the Recovery and Resilience Facility.


22 July 2021

Revised 2021 and 2022 auction calendars published       



Article 191(2) of the Treaty on the Functioning of the European Union requires that European Union policy is based on the principle that the polluter should pay and, on this basis, the EU ETS Directive provides for a transition to full auctioning over time. Consequently, large-auctioning is a dominant feature of the European Union Emissions Trading Scheme (EU ETS) across trading phases and the main method of distributing emissions allowances by the EU Member States.

Over the trading period from 2013 to 2020 57% of the total amount of allowances was auctioned, while the remaining stake was made available for targeted free allocation to industry. Justifications to postpone full transition to full auctioning were to avoid carbon leakage and to address risks of increases in greenhouse gas emissions in third countries where industry is not subject to comparable carbon constraints as long as comparable climate policy measures are not undertaken by other major economies. Beyond 2020 the auctioning of allowances remains the general rule, with free allocation as the exception. The scope of these exceptions, and, consequently, the pace of the transition to full auctioning will be influenced by recent legislative initiative for the carbon border adjustment mechanism (CBAM).

The share of allowances to be auctioned will remain the same after 2020 under the post-2020 EU low carbon framework (this conclusion follows from Questions and answers on the proposal to revise the EU emissions trading system (EU ETS), Brussels, 15 July 2015, p. 2 and the modified wording of Article 10(1) of the EU ETS Directive as formulated in the European Commision's Proposal for a Directive of the European Parliament and of the Council amending Directive 2003/87/EC to enhance cost-effective emission reductions and low-carbon investments of 15 July 2015 (COM(2015) 337 final) 2015/148 (COD)). Auctioning of emission allowances in the EU is conducted by a common auction platform for 25 Member States and by a small number of opt-out platforms. 

Regulation (EU) No 1031/2010 determines the volumes of allowances to be auctioned each year.  


Legislative process regarding the Auctioning Regulation


The Auctioning Regulation has firstly been amended to allow the early auctioning of 120 million phase three allowances in 2012 (frontloading), in view of the widespread commercial practice in the electricity sector of selling power on a forward basis and purchasing the required inputs (including allowances) when they sell their output.

The corresponding reduction of volumes auctioned in 2013 and 2014 by 60 million allowances in each year was done by the Commission Regulation (EU) No 1210/2011 of 23 November 2011 amending Regulation (EU) No 1031/2010 in particular to determine the volume of greenhouse gas emission allowances to be auctioned prior to 2013 (OJ L 308, 24.11.2011, p. 2)), as well as to list an auction platform to be appointed by Germany (Commission Regulation (EU) No 784/2012 of 30 August 2012 (OJ L 234, 31.08.2012, p. 4). This was followed soon by the so-called "backloading" (see below).


Backloading mbm 


The above notwithstanding, the EU Climate Change Committee on 18 June 2013 supported Germany's choice of European Energy Exchange (EEX) as its definitive opt-out auction platform under the Auctioning Regulation. The Committee backed an amendment to the Regulation to list EEX in its Annex as Germany's definitive opt-out auction platform, which means the Auctioning Regulation will apply to its auctions in full (EEX also conducts auctions as the common auction platform). The said amendment to the Auctioning Regulation also provides for a number of technical changes, e.g. introducing more flexibility regarding the timing of aviation allowance auctions.

During further legislative procedure the European Parliament and the Council did not raise objections with respect to this amendment  and in effect it materialised as the Commission Regulation No 1143/2013 of 13 November 2013 amending Regulation (EU) No 1031/2010 on the timing, administration and other aspects of auctioning of greenhouse gas emission allowances pursuant to Directive 2003/87/EC of the European Parliament and of the Council establishing a scheme for greenhouse gas emission allowances trading within the Community in particular to list an auction platform to be appointed by Germany (OJ L 303, 14.11.2013, p. 10).

On the occasion of clearing the status of EEX as an auction platform, the Regulation 1143/2013 made several other changes to the Auctioning Regulation. Among them are:

- Technical adaptations necessary due to current delays in auction monitor appointment: additions in places providing for the auction monitor competences of the phrase: "if appointed" (new Article 7, paragraph 7, Article 8, paragraph 3 of the Auctioning Regulation);

- Changes in the publication of the auction calendar: auction platform should determine and publish the bidding windows, individual volumes, auction dates as well as the auctioned product, payment and delivery dates of emission allowances to be auctioned in individual auctions each calendar year, by 30 September (instead of 28 February in the earlier text) of the previous year (amendment to Article 11, paragraph 11 of the Auctioning Regulation);

- Clarification on the relation of the admission to the auctions and becoming a member of or a participant in the secondary market: admission to the auctions must not be dependent on becoming a member of or a participant in the secondary market organised by the auction platform or any other trading place operated by the auction platform or by any third party (Article 16, paragraph 1a of the Auctioning Regulation). 

Under the Commission Delegated Regulation (EU) 2019/1868 of 28 August 2019 amending Regulation (EU) No 1031/2010 to align the auctioning of allowances with the EU ETS rules for the period 2021 to 2030 and with the classification of allowances as financial instruments pursuant to Directive 2014/65/EU of the European Parliament and of the Council the auction process remains unchanged, despite some minor improvements.

In order to reinforce the integrity of the carbon market, since 2018, allowances are classified as financial instruments by MiFID II/MiFIR (previously, MiFID I recognised only derivatives of allowances as financial instruments).

The new classification brings the secondary market spot trade in allowances in the scope of, inter alia, MiFID II/MiFIR and MAR. However, the process of auctioning of allowances (primary market) is only in the scope of MAR.


Concise legislative history of the 'backloading' issue


The initiative to postpone the auctioning of 900 million allowances from the period 2013-2015 to 2019-2020 (so-called “back-loading”) emerged as a legislative text with the adoption by the European Commission of the proposition of 12 November 2012 for the Auctioning Regulation amendment. The stance of the European Commission was that the auction time profile was not decided in the primary legislation, i.e. the ETS Directive itself, but rather determined in the implementing legislation, i.e. the Auctioning Regulation, thus changes to the auction time profile were therefore made possible in the ETS Directive.

The European Commission argued that using this limited flexibility should by no means be equated with market intervention (see: MEMO-12-861 of 14 November 2012). Furthermore this option still required agreement through the comitology process, involving Council and Parliament

European Parliament's energy committee (ITRE) voted on 24 January 2013 to reject the European Commission's backloading proposal. The energy committee's opinion was an advisory one. In the opposite, the Parliament's environment committee (ENVI), being the lead committee on the dossier, voted on 19 February 2013 in favour of the backloading.

On 16 April 2013 European Parliament voted against freezing auctions of a portion of CO2 emission quotas, so as to boost the price of EU "polluter's permits". Pursuant to the European Parliament press release: 'A majority felt that interfering with the supply of credits would undermine confidence in the Emissions Trading System (ETS), designed to cut greenhouse gas emissions.'It was also added that 'MEPs opposing the measure advocate deeper reform of the ETS and fear that interfering with the supply of credits could undermine players' confidence in the scheme.' However, joint statement Energy and Environment Ministers from nine European member states of 7 May 2013 stressed they want to see in 2013 a reform of the the EU ETS to ensure it remains at the forefront of EU policies to combat climate change and drive low carbon investments. The joint statement set out clear direction and deadlines on next steps on EU ETS reform including calls for national governments in the Council and MEPs in the Parliament to come to a resolution to backloading proposals by July 2013 at the latest as well as called for the European Commission to produce a legislative proposal to deliver proper structural reform to the EU ETS by the end of 2013 at the latest.

The full text of the joint statement Energy and Environment Ministers from nine European member states of 7 May 2013 is available here.

The EU Parliament's environment committee's (ENVI) second vote on a draft law to prop up EU carbon prices on 19 June 2013 has brought a major legislative breakthrough.

ENVI supported the text granting the European Commission the right to adapt "in exceptional circumstances" the timing of auctions, provided an impact assessment shows the sectors concerned will not face "significant risk" of companies relocating outside the EU. "The Commission shall make no more than one such adaptation and only in the third phase of ETS 2013-2020", the text adds.

Credits withheld should be reintroduced "in a predictable and linear manner starting from the year following that during which allowances have last been withheld" the text says (the original draft from the Commission proposed returning them in 2019-2020). A vote in the full assembly European Parliament on 3 July 2013 supported the legal basis for the European Commission to intervene in the EU ETS (see European Parliament procedure file on the issue). The amendments adopted by the European Parliament on 3 July 2013 can be accessed here

The European Parliament's files documenting backloading vote in the plenary on the 3 July 2013 show the European legislative body decided to rein in the executive's ambitions to influence carbon market in the administrative way.



European Commission backloading proposal:

"The Commission shall, where appropriate, adapt the timetable for each period so as to ensure an orderly functioning of the market."


European Parliament's version of 3 July 2013:

"Where an assessment shows for the individual industrial sectors that no significant impact on sectors or subsectors exposed to a significant risk of carbon leakage is to be expected, the Commission may, in exceptional circumstances , adapt the timetable for the period referred to in Article 13(1) beginning on 1 January 2013 so as to ensure an orderly functioning of the market. The Commission shall make no more than one such adaptation for a maximum number of 900 million allowances."



The original version tabled by the European Commission (see box) envisioned the power granted to the executive to adapt the auctions' timetable in the every EU ETS period i.e. not only in the years 2013-2012 but also in later years. European Parliament restricted this only to the current trading period.

Other limits imposed by the European Parliament were:

1) the preconditions for intervention: "exceptional circumstances" (not only "where appropriate"), and, moreover, "Where an assessment shows for the individual industrial sectors that no significant impact on sectors or subsectors exposed to a significant risk of carbon leakage is to be expected";

2) the possible number of adaptations - only one-off measure available;

3) adaptation was confined to the maximum number of 900 million allowances.

The purpose for the intervention ("orderly functioning of the market") remained unchanged compared to the original European Commission's proposition. For the final outcome of this legislative procedure see the ETS Directive.

Another problem has arisen due to legislative delays. European Commission options elaborated (EC release of 21 November 2013) in the face of the lack of possibility to apply backloading in 2013 are available here.

The options consisted in:

1) backloading as of 2014 on the basis of the initial profile, meaning the postponement of backloaded volumes from previously scheduled years 2013, 2014 and 2015 in identical proportions into the subsequent years 2014, 2015 and 2016 (option 1);

2) the distribution of the 2013 backloaded volumes into years 2014 and 2015 - effecting (as opposite to the option 1) in no backloaded volumes in 2016 (option 2).

Under option 1 a sub-option had been differentiated which consised in adding a provision in the following wording:

"Where in 2014 the volume of reduction set out in Annex II cannot be spread over a period of more than [x] months it shall be decreased by [xxx] million allowances. In that case, the volumes of reduction for 2015 and 2016 shall be adjusted in equal instalments accordingly."

Further analysis of potential options was made in the European Commission Communication of 19 December 2013.

The issue of backloading has been finalised by the Commission Regulation (EU) No 176/2014 of 25 February 2014 amending Regulation (EU) No 1031/2010 in particular to determine the volumes of greenhouse gas emission allowances to be auctioned in 2013-20Accordingly, the volumes to be auctioned in 2014 have been revised as from 12 March 2014 (ICE) and 17 March 2014 (EEX). The underlying cause of the entire problem was an economic slowdown and an over-allocation of emission permits in the period 2013-2020. The idea of one-off adaptation expressed in the ENVI opinion did not answer the question whether in the case of economic recovery the timing of auctions would be once more adjusted. Presumably, it would not. Given EU ETS was designed a priori as a market-based scheme such political intervention poses a precedence and inevitably rises many doubts.

A more long-lasting effect of the above process has been the fact that the circumstances, which gave rise to the regulatory measure such as backloading, drastically revealed, moreover, the need to introduce into the EU ETS a regular mechanism for the reaction to market disturbances - a Market Stability Reseve (MSR).


Common / opt-out auction platforms


Auctioning Regulation provides for the participating Member States and the Commission to procure jointly a common platform to auction allowances on behalf of the EU Member States. Such appointment is made on the basis of competitive tender procedures (with the use of the joint procurement agreement between the Member States participating in the joint action and the Commission). The first common auction platform became (in August 2012) the European Energy Exchange AG (EEX). Auctioning Regulation also provides for individual Member States for the possibility to opt out from the joint procurement of the common auction platform. This option was used by three, then EU Member States i.e. Germany, UK and Poland, from which the first two - the UK and Germany - appointed their own auction platform (Intercontinental Commodity Exchange (ICE), and European Energy Exchange AG (EEX), respectively), and the third - Poland - did appoint its own opt-out auction platform and is making use of the common auction platform. Technically, such appointment of the opt-out auction platform is subject to listing in Annex III of the Auctioning Regulation, and both functioning opt-out auction platforms, ICE and EEX, underwent this procedure.

To conclude this thread, as of 2021:

- most EU Member States have jointly procured the German regulated market EEX as the common platform to auction the allowances;
- separate auctions are organised by EEX on behalf of Germany and Poland (Germany and Poland have an opt-out clause);
- EEX will also organise the auctions of the allowances belonging to the UK, since the EU ETS Directive continues to apply after the Brexit to and in the UK in respect of the generation of electricity in Northern Ireland, on the basis of the Protocol on Ireland/Northern Ireland.


Auctioning of aviation allowances


The auctioning of aviation allowances was initially suspended (in 2012), following the 'stop the clock' Decision (Decision No 377/2013/EU of the European Parliament and of the Council of 24 April 2013 derogating temporarily from Directive 2003/87/EC establishing a scheme for greenhouse gas emission allowance trading within the Community, OJ L 113, 25.4.2013, p.1) and resumed in 2014.

At present, EEX auctions two types of allowances: EU allowances (EUA) and EU aviation allowances (EUAA). 


Analytics for the EU emission allowances auctions


More than half of the allowances are to be auctioned during the third phase of the EU ETS (years 2013 - 2020) with the proportion continually growing throughout the trading period. The number of auctions reached 1036 by 30 June 2017.

clip2   Links


European Commission website on auctioning


ICE auctioning website


California auctioning scheme




The FSA approach to auction participation requirements


Why EU ETS does not apply auction purchase limit and holding limit


Auctioning infrastructure put in place


The requirements for financial intermediaries bidding in the auctions of emission allowances of the third trading period


Australian carbon auctions design – improvement of the EUETS auctioning model or regression?


Bidding strategies in the future auctions of EUAs


Auctioning infrastructure put in place.


Buying allowances in the auctions versus on the secondary market - pros and cons


Where to buy emission allowances: in the auction or on the secondary market 


Flawed application of the auction reserve price in the EU ETS


Reserve Price Bid Limitations for California Auctions 


Legal construction for cancelling auction because of the price "significantly under" the level of the secondary market used by EEX


The eligibility to apply for admission to bid in the auction pursuant to the Auctioning Regulation


Californian v European model for emission allowances auctions – which of them is better suited to the market


The Cost Containment Mechanisms in the California Cap-and-Trade Program – why absent in the EUETS?


Calculation of interest under the Auctioning Regulation – one day missing?


New primary market for emissions allowances – some remarks on auctioned products

Report from the Commission to the European Parliament and to the Council, Report on the functioning of the European carbon market, 23 November 2017 (COM(2017) 693 final (p. 16, 17) refers to the following facts as regards the auctioning of CO2 allowances in the EU ETS third trading period:

1. total volume of Phase 3 general allowances auctioned in 2012-2017 (aviation allowances excluding) was as follows:

- 2012 - 89 701 500,

- 2013 - 808 146 500,

- 2014 - 528 399 500,

- 2015 - 632 725 500,

- 2016 - 715 289 500,

- 2017 (up to 1 April) - 33 241 935 000.

2. total volume of Phase 3 aviation allowances auctioned in 2012-2017 was as follows:

- 2012 - 2 500 000,
- 2013 - 0,
- 2014 - 9 278 000,
- 2015 - 16 390 500,
- 5 997 500,
- 2017 (up to 1 April) - 0.

The auctions over the year 2016 took place through the following auction platforms:

- European Energy Exchange AG ('EEX'), auctioning as the common auction platform for 25 Member States participating in a joint procurement procedure, and for Poland which opted-out from the joint procurement procedure but has not appointed its own auction platform yet. As of 5 September 2016, EEX was conducting auctions as the second common auction platform appointed on 13 July 2016;

- EEX, auctioning for Germany as an 'opt-out' auction platform;

- ICE Future Europe ('ICE'), auctioning for the UK as an 'opt-out' auction platform. Iceland, Liechtenstein and Norway have not started to auction allowances yet.

EEX, auctioning on behalf of 27 Member States (25 Member States cooperating on a common auction platform, Germany and Poland) auctioned 88% of the total auctioned amount in 2012 to 2014, with ICE, auctioning 12% of the total volume on behalf of the UK (Report on the functioning of the European carbon market, accompanying the document Report from the Commission to the European Parliament and to the Council, Climate action progress report, including the report on the functioning of the European carbon market and the report on the review of Directive 2009/31/EC on the geological storage of carbon dioxide of 18 November 2015 (COM(2015) 576 final, p. 15).

In 2016, EEX, auctioning on behalf of 27 Member States (25 Member States cooperating on a common auction platform, Germany, and Poland) auctioned 89% of the total auctioned amount, while ICE auctioned 11% of the total amount on behalf of the UK. The auctions were generally conducted smoothly and the auction clearing prices were generally in line with the secondary market prices, without the occurrence of significant problems or incidents. The auction on 25 May 2016 conducted by EEX for Poland and the one on 14 December 2016 conducted by ICE for the UK were cancelled in line with the provisions of the Auctioning Regulation.

In the case of the Polish auction this was due to the reserve price not being met, while for the UK one the total bid volume fell short of the auctioned volume. With these, a total of five auctions have been cancelled out of the more than a thousand held under the Auctioning Regulation since late 2012.


Auction products


Article 4(2) of the Auctioning Regulation generally foresees allowances to be auctioned in the form of either two-day spot or five-day futures. However, pursuant to the comment provided on the European Commission's auctioning website, emission allowances are to be auctioned 'in the form of spot products, which means delivery within a maximum of five working days after the auction'. As the Commission further states, the auctioned product 'may or may not be a financial instrument in the meaning of the EU regulatory framework for markets in financial instruments'. 
The Commission's FAQ website also confirms that the products auctioned by EEX and ICE are not such financial instruments. 

EU ETS Handbook (p. 32) refers to this issue as follows:

"The Auctioning Regulation prescribes the auctioning of allowances as "spot" products with a maximum delivery date of five days after the auction [...]. The auction platforms EEX and ICE deliver the allowances one day after the auction. These auctioned products do not qualify as "financial instruments" under EU financial market legislation, but the Auctioning Regulation ensures that the protections in place are similar to those for any financial instrument covered by EU Financial legislation, notably as regards market abuse, money laundering and customer protection [...]."

The UK Financial Conduct Authority (FCA) atempted to interpret the interactions of the the above provisions with the MiFID II (see Markets in Financial Instruments Directive II Implementation – Consultation Paper I (CP15/43), December 2015, p. 267, 268). FCA observes the Auctiong Regulation and MiFID II are sometimes overlapping in the following way:

- Article 6(5) of the Auctioning Regulation deems as an investment service or activity the reception, transmission and submission of a bid for a financial instrument (the "five-day future" auction product) on an auction platform by an investment firm to which MiFID applies or a CRD credit institution.

- The Auctioning Regulation also regulates bids for allowances in the form of two-day spot contracts.

- An emission allowance is itself a financial instrument (Section C11 of the Annex I to the MiFID II).

- An option, future, swap, forward rate agreement or any other derivative contract relating to emission allowances is included as a derivative under Section C4 of the Annex I to the MiFID II when it may be settled physically or in cash.

In the FCA's view the effects of the above interactions are as follows:

(1) An emission allowance auctioned as a five-day future or a two-day spot contract is regulated under the Auctioning Regulation.

(2) The five-day future auction product is a financial instrument and is regulated under MiFID. It is included under Sections C4 and C11 of the Annex I to the MiFID II.

(3) The two-day spot contract product is also a financial instrument. It is included under Section C11. It is therefore also regulated under MiFID.

(4) In the FCA's view an emission allowance (including when auctioned under the auction regulation) will not come within C1.

(5) The Auctioning Regulation covers the reception, transmission and submission of a bid. This corresponds to the MiFID activities of the reception and transmission of orders in relation to one or more financial instruments, execution of orders on behalf of clients and dealing on own account.

(6) The auction regulation provides certain exemptions for aircraft operators and others.
These exemptions continue to apply whether or not a MiFID exemption is available, but only for bidding activities covered by the auction regulation.

(7) The MiFID activities that apply to a product covered by the Auctioning Regulation are not limited to the MiFID activities listed in paragraph (5) of this list.

All the MiFID investment services and activities apply to emission allowances auctioned as a financial instrument. Therefore, for example, advising on bids for emission allowances auctioned as a five-day future is covered by MiFID.


Auction format


EU ETS implemented a single-round, sealed bid, uniform price auction. Under the above auction design bidders can place any number of bids during a single bidding window of the auction, each bid specifying the number of allowances the bidders would like to buy at a given price. The bidding window is open for at least two hours. Directly following the closure of the bidding window, the auction platform determines and publishes the clearing price at which demand for allowances equals the number of allowances offered for sale in the auction concerned.

Successful EU ETS auction bidders are the ones who have placed bids for allowances at or above the clearing price. Under the EU ETS auction rules all successful bidders pay the same price, regardless of the price they specified in their bids. The EU ETS auction format does not implement in that regard the alternative approaches, such as multiple-round auctions (be it ascending or descending). For an ascending auction, the auctioneer will fix the auction price for the round, and bidders must submit the quantity they are willing to buy at the given price. Until total demand is below or equal to total supply, a new round is launched with an increased auctioneer's price and revised quantity by bidder willing to stay in the auction. These revised quantities cannot increase compared to the previous rounds' bids.

Descending auctions have symmetric characteristics, i.e. the auctioneer's price decreases and the volume of bids increases until demand matches supply (see: Technical Aspects of EU Emission Allowances Auctions Consultation Paper, p. 37).

The EU ETS regulatory choice for a uniform auction price means that the another possible solution, being discriminatory-price auction (where bidders 'pay-as-they-bid') has been rejected. 

Participating in pay-as-you-bid auctions would require the participant to be well informed of market price and perspective so as to avoid paying too high a price (the so-called winner's curse).

Tied bids (meaning where the price of several bids is the same) under the Auctioning Regulation are sorted through a random selection (Article 7(2)). The alternative solution i.e. pro-rata re-scaling of tied bids (where all tying bids are proportionally reduced in size so as the total demand equals the offer of EU allowances) has not been considered as appropriate for EU ETS.

Analyses of how EU ETS auctioning arrangements work in practice indicate that, generally, the auction clearing price is in line with the price signal in the secondary market (see: Auctions by the transitional common auction platform, 1st Report or the aforementioned Report on the functioning of the European carbon market, accompanying the document Report from the Commission to the European Parliament and to the Council, Climate action progress report, including the report on the functioning of the European carbon market and the report on the review of Directive 2009/31/EC on the geological storage of carbon dioxide of 18 November 2015 (COM(2015) 576 final, p. 14).


Auction purchase limit and holding limit


EU ETS does not apply auction purchase limit and holding limit - arrangements often used in other cap-and-trades (for particulars see here). However, the relevant restrictions may be introduced by way of the exchange self-regulation.

EEX Trading Conditions of 7 November 2012 provide an illustrative example in paragraph 44(3), pursuant to which the Management Board of the Exchange can specify a maximum number of contracts for each individual trading participant (order limit). EEX Trading Conditions further specifies that in such a case only orders up to the order limit are suitable for trading and can be executed.


Reserve price


The setting an absolute price floor in the framework of government interventions into the price setting mechanism is not foreseen in the revised EU ETS Directive (except for a limited provision on excessive price volatility in Article 29a) . Generally a 'reserve price' is defined as the lowest price the seller is willing to accept for the auctioned product.

In EU allowance auctions a reserve price is linked to situation where auction clears significantly below the prevailing secondary market price. For particulars in that regard see:

Flawed application of the auction reserve price in the EU ETS

Reserve Price Bid Limitations for California Auctions 

Legal construction for cancelling auction because of the price "significantly under" the level of the secondary market used by EEX


 Exclamation blue


Market Stability Reserve (MSR) influence on auction calendars      




numbering blue  the MSR is to be established in 2018 and is to start operating from 1 January 2019 

numbering blue  Volumes of allowances are to be placed in or released from the MSR adjusting the volumes of allowances to be auctioned over a period of 12 months beginning on 1 September of a given year

numbering blue  In the first year of the MSR’s operation, the first adjustment to the auction volumes is to be made from 1 January to 1 September 2019

numbering blue 900 million allowances originally planned to be reintroduced in 2019 and 2020, are no longer to be auctioned but are to be placed in the MSR

numbering blue Allowances not allocated from the new entrant reserve, or those not allocated to installations because of their closure or partial cessation in accordance with Articles 10a(7), 10a(19) and 10a(20) of Directive 2003/87/EC, are to be placed in the MSR in 2020 rather than auctioned

numbering blue The auction calendars of the common auction platform and, where applicable, of opt-out auction platforms are to be adjusted to take account of the volume of allowances placed in or to be released from the MSR



Auction calendar

The auctions take place on a daily basis according to a fixed calendar, i.e. auction platform has to determine and publish the volumes and dates of each individual auction before the beginning of each calendar year. On 22 July 2021 the revised 2021 and 2022 auction calendars were published.


Auction Monitor


The Auctioning Regulation further provides for an Auction Monitor to be also appointed under a joint procurement agreement between the Member States and the Commission and options for this are currently being assessed.


Access to auctions


Under the Auctioning Regulation auctions may only be conducted by a regulated market pursuant to the MiFID (Article 35(1) of the Auctioning Regulation). This was the initial wording of the said provision. However, Commission Regulation (EU) 2017/1902 of 18 October 2017 has replaced the above rule by the following: 'Auctions shall only be conducted on an auction platform authorised as a regulated market whose operator organises a secondary market in allowances or allowances derivatives.' The reason behind this amendment appears ambiguous. Its possible practical effect is potential new entrants into the auctioning business will be blocked as liquidity in the secondary carbon market is highly concentrated in existing platforms run by the ICE and EEX. In turn, bidding in the EU ETS auctions represents a new regulated activity under which bidders are authorised to participate in the European primary markets in emissions allowances.

The legal basis for the said eligibility requirements is Article 18 ("Persons eligible to apply for admission to bid") of the Auctioning Regulation. It should be stressed that only the firms listed in Article 18 are able to bid in emissions auctions under EU ETS rules.

Thus, persons eligible to participate in the EU ETS auctions are: 


1. Operators including parent companies, subsidiaries and affiliates bidding on their own account.


2. Investment firms and credit institutions authorised and regulated under EU law - investment firms under MiFID,  credit institutions under Directive 2006/48/EC (Banking Consolidation Directive – BCD). Once admitted, they can bid on their own account. The condition under the said two categories of institutions may also bid on behalf of clients is that they must be authorised to do so by the national competent authority. Such authorisation must be valid with respect to the auctioned products, and, as was said above, the auctioned products currently auctioned by EEX and ICE, do not constitute a financial instrument under EU legislation for financial markets. It is noteworthy that the Commission Regulation 1210/2011 of 23 November 2011 removed the requirement for authorisation under the Auctioning Regulation for a MiFID investment firm or a credit institution bidding in relation to two day spot products on its own account.

3. Persons exempt from the authorisation requirements in EU financial law because their trading and investment services activities are only ancillary to their main business (Article 2(1)(i) of Directive 2004/39/EC), but who are authorised under national legislation implementing the rules laid down in the Auctioning Regulation ('Auctioning Regulation business' as opposite to the 'MiFID business'). Article 2(1)(i) MiFID exempts persons dealing on own account in financial instruments, or providing investment services in commodity derivatives or derivative contracts included in Annex I, Section C 10 of MiFID to the clients of their main business, provided this is an ancillary activity to their main business, when considered on a group basis, and that main business is not the provision of investment services within the meaning of MiFID or banking services under Directive 2000/12/EC. As is the case for investment firms and credit institutions, they may also bid on behalf of clients provided they are authorised by the national competent authority to do so. Under the UK FSA requirements (Policy Statement (PS 12/12) 'Regulating bidding for emissions allowances under Phase Three of the EU Emissions Trading Scheme') firms should make it clear which activity they intend to carry on. Firms applying to undertake Auctioning Regulation business (bidding) exclusively are assessed primarily against the criteria in Auctioning Regulation rather than the MiFID standards that do not apply to Auctionimg Regulation bidding.

If for any reason a firm that applied to carry on Auctioning Regulation bidding exclusively subsequently decides that it would like to carry on MiFID business bidding, it should notify the UK regulator, as this represents a material change in its business profile and will require regulatory consideration.


4. Business groupings of operators bidding on their own account and acting as agent on behalf of their members. The European Commission FAQ website explains the concept of "business grouping" that it requires the existence of a multi-lateral legal relationship between several ETS operators and/or aircraft operators such as a partnership, joint venture or association of such operators and/or aircraft operators. The business grouping must have its own (incorporated or unincorporated) legal identity and statute which clearly indicates that the business grouping is controlled by ETS operators and/or aircraft operators. For bidding in the auctions directly on its own account and acting as an agent on behalf of its members, the business grouping could employ the services of in-house or outside traders who must be natural persons acting as the bidder's representative.


5. Public bodies or state-owned entities that control ETS operators or aviation operators.


The European Commission cleared the ambiguities with respect to the status of unauthorised brokers by stating that they are not eligible to apply for admission to bid, but could play a role in facilitating the formation of business groupings.

SMEs covered by the EU ETS as well as small emitters can access the auctions directly after going through the due diligence checks. They may also access the auctions through an intermediary or form a business grouping to act as an agent on their behalf. This may offer them the advantage of minimal transaction costs as well as certainty on the price and quantity of allowances they wish to receive.

Where investment firms, credit institutions or exempt persons bid on behalf of their clients, they must ensure that those clients are themselves eligible to apply for admission to bid, i.e. are included in one of the categories above.


Auction admission requirements


Each bidder may apply for admission to bid at the auction platforms from anywhere in the EU and the EEA-EFTA. The auction platform must check each application to ensure bidders are eligible to participate under the rules laid down by the Auctioning Regulation and to prevent the auctions being used for criminal activity (EU ETS Handbook, p. 30).

In summary applicants must:

- Hold a nominated registry account;
- Hold a nominated bank account;
- Satisfy due diligence in relation to the ownership, integrity and nature of bidders business;
- Satisfy financial standing requirements.

The general admission requirements are set out in Article 19 ("Requirements for admission to bid") of the Auctioning Regulation, while a full list of Know Your Customer (KYC) information for new participants is set out in Annex II of the Auctioning Regulation.




Considering access to the European Energy Exchange auction the choice of three EEX Memberships is offered:
a) full membership - access to all EEX Markets (Spot, Derivatives) and products (power, natural gas, emissions, coal),

b) emissions-only membership - access to both or either the Spot and Derivatives markets for emissions products only (EUA, EUAA, CER, ERU),

c) auction-only membership.

Companies who would like to become a member of EEX's emissions spot market in order to access the auctions must first determine whether they are eligible to bid as per the EU rules and the EEX admission requirements.

If the company would prefer to bid indirectly, they may contact a trading member of EEX or a clearing member of the ECC who provides client services. This may require satisfying their requirements for acceptance.




All participants must have an arrangement in place with an ICE Clear Europe Clearing Member or an Exchange Member acting as an Auction-only Access Provider (see the brochure ICE Emissions Auctions. How to participate for further details).


Auctioning Regulation business passporting under the UK rules


Where a firm is seeking to passport MiFID business bidding, the existing architecture for passporting under MiFID applies. However, passporting issue under the Auctioning Regulation business is open, since MiFID is not relevant in this field. The above-mentioned FSA Policy Statement PS 12/12 explains this problem on the ground of the UK regulatory regime. A UK firm seeking to provide Auctioning Regulation bidding through establishing a branch in an EEA (European Economic Area) state must notify the UK regulator with a form that provides it with information that assists supervision of that branch (e.g. address of EEA branches, name and contact details of branch managers). Where a UK firm is seeking to provide Auctioning Regulation bidding remotely by way of services in another EEA state, a UK firm must notify the UK regulator by email of: (a) its name and firm reference number; (b) the EEA state in which the service is or will be provided; and (c) the start date of the service. In this case, given the limited amount of information, there is no form and instead the firm need only send an email with this information.

An incoming EEA firm may undertake Auctioning Regulation bidding in the UK provided it has been appropriately authorised in its Home Member State. This can be done either by providing services remotely or by setting up a branch in the UK. Where it carries on this activity by setting up a branch in the UK, certain requirements will apply to it (e.g. it must have a person approved by the UK regulator to carry out the role of a Money Laundering Reporting Officer). This notification rule requires an incoming EEA firm seeking to establish a branch in the UK to submit a form to the UK financial regulator which provides basic information about the branch (e.g. name of the firm, address of any UK branch it has, name and contact details of any branch manager). The form also requires the incoming EEA firm to provide evidence of the authorisation provided by its Home Member State and the identity of the Money Laundering Reporting Officer.

This procedure includes two separate notifications but ensures that an incoming EEA firm updates the UK financial regulator if the information provided on that form changes, or if it ceases to carry on Auctioning Regulation bidding from a branch in the UK.


Revenues from auctioning


The EU ETS Directive provides that at least 50% of auctioning revenues or the equivalent in financial value of these revenues, including all revenues generated from allowances distributed for the purposes of solidarity and growth, should be used by Member States for climate and energy related purposes. The total revenues generated from the auctions between 2012 and June 2015 exceeded € 8.9 billion (the aforementioned Report of 18 November 2015, p. 15).


Auctioning in the EU ETS post-2020 low carbon framework



Detailed questions and answers on the proposal to revise the EU emissions trading system (EU ETS), Brussels, 15 July 2015, p. 5 - extract


What is covered by the 57 % auction share?

The European Council agreed that the share of allowances to be auctioned under the EU ETS post-2020 should not be reduced. This was an important and integral part of the agreement on the wider 2030 climate and energy framework. The auction share comprises allowances auctioned by Member States. This includes the regular auction volume, including the 10 % auction volume re-distributed for solidarity purposes, as well as allowances auctioned for the Modernisation Fund.


What are the benefits of fixing the auction share in the ETS Directive?

In phase 3 the auction share was only known with much delay after a number of technical implementing steps have been taken. Fixing the auction share in legislation has considerable positive impacts on transparency, predictability and the functioning of the carbon market. It will enhance planning certainty of investment decisions and transparency for market participants inside and outside the system, as well as for the wider public. It will render the EU ETS simpler and more transparent.


Are changes to the auctioning process proposed?

No. The rules for auctioning remain largely unaffected by the proposed revisions. The distribution key for sharing revenue from auctioned allowances between Member States remains the same. The auctioning infrastructure remains intact and concerned Member States keep the possibility to designate an opt-out auction platform instead of a participation in the common auction platform. The only difference concerns the number of eligible Member States benefiting from the 10 % redistribution of the auction volume for solidarity purposes. Beyond 2020 three Member States (Belgium, Luxembourg and Sweden) will no longer benefit from this provision.


How do the provisions for the use of auction revenue change?

The auction revenue will belong to Member States also beyond 2020 and the ETS Directive merely foresees that 50 % of the revenue should be used for climate and energy-related purposes. The Directive contains a list of such recommended purposes to which three new possibilities are added: (1) climate finance for vulnerable third countries, (2) indirect cost compensation and (3) promotion of skill formation and reallocation of labour affected by the transition of jobs in a decarbonising economy.



Brexit influence on the allowances auctioned by the United Kingdom


It is noteworthy, according to the European Commission’s proposal for the amendment of Articles of 41 and 67 of the EU ETS Registry Regulation:

  • as from 1 January 2018, any ETS allowances auctioned by the United Kingdom would be marked, i.e. made distinguishable for market participants from allowances issued by other EU Member States,
  • as long it cannot be guaranteed that the United Kingdom will enforce compliance obligations arising under the EU ETS for the years 2018 and 2019, these marked allowances will not be accepted as of 1 January 2018 for compliance purposes, including for surrender for 2017 emissions.

Details of the above amendment are covered in greater detail in comments on the EU ETS Registry Regulation



Article 10 of the EU ETS Directive as amended by Directive (EU) 2018/410 of the European Parliament and of the Council of 14 March 2018 amending Directive 2003/87/EC to enhance cost-effective emission reductions and low-carbon investments, and Decision (EU) 2015/1814


Auctioning of allowances


1. From 2019 onwards, Member States shall auction all allowances that are not allocated free of charge in accordance with Articles 10a and 10c of this Directive and that are not placed in the market stability reserve established by Decision (EU) 2015/1814 of the European Parliament and of the Council (the ‘market stability reserve’) or cancelled in accordance with Article 12(4) of this Directive.

From 2021 onwards, and without prejudice to a possible reduction pursuant to Article 10a(5a), the share of allowances to be auctioned shall be 57 %.

2 % of the total quantity of allowances between 2021 and 2030 shall be auctioned to establish a fund to improve energy efficiency and modernise the energy systems of certain Member States as set out in Article 10d (‘the Modernisation Fund’).
The total remaining quantity of allowances to be auctioned by Member States shall be distributed in accordance with paragraph 2.


1a. Where the volume of allowances to be auctioned by Member States in the last year of each period referred to in Article 13 of this Directive exceeds by more than 30 % the expected average auction volume for the first two years of the following period before application of Article 1(5) of Decision (EU) 2015/1814, two thirds of the difference between the volumes shall be deducted from the auction volumes in the last year of the period and added in equal instalments to the volumes to be auctioned by Member States in the first two years of the following period.


2. The total quantity of allowances to be auctioned by each Member State shall be composed as follows:

(a) 90 % of the total quantity of allowances to be auctioned being distributed amongst Member States in shares that are identical to the share of verified emissions under the EU ETS for 2005 or the average of the period from 2005 to 2007, whichever one is the highest, of the Member State concerned;

(b) 10 % of the total quantity of allowances to be auctioned being distributed amongst certain Member States for the purposes of solidarity, growth and interconnections within the Union, thereby increasing the amount of allowances that those Member States auction under point (a) by the percentages specified in Annex IIa.
For the purposes of point (a), in respect of Member States which did not participate in the EU ETS in 2005, their share shall be calculated using their verified emissions under the EU ETS in 2007.
If necessary, the percentages referred to in point (b) shall be adapted in a proportional manner to ensure that the distribution is 10 %.


3. Member States shall determine the use of revenues generated from the auctioning of allowances. At least 50 % of the revenues generated from the auctioning of allowances referred to in paragraph 2, including all revenues from the auctioning referred to in paragraph 2, points (b) and (c), or the equivalent in financial value of these revenues, should be used for one or more of the following:
(a) to reduce greenhouse gas emissions, including by contributing to the Global Energy Efficiency and Renewable Energy Fund and to the Adaptation Fund as made operational by the Poznan Conference on Climate Change (COP 14 and COP/MOP 4), to adapt to the impacts of climate change and to fund research and development as well as demonstration projects for reducing emissions and for adaptation to climate change, including participation in initiatives within the framework of the European Strategic Energy Technology Plan and the European Technology Platforms;
(b) to develop renewable energies to meet the commitment of the Union to renewable energies, as well as to develop other technologies that contribute to the transition to a safe and sustainable low-carbon economy, and to help to meet the commitment of the Union to increase energy efficiency, at the levels agreed in relevant legislative acts;
(c) measures to avoid deforestation and increase afforestation and reforestation in developing countries that have ratified the international agreement on climate change, to transfer technologies and to facilitate adaptation to the adverse effects of climate change in these countries;
(d) forestry sequestration in the Union;
(e) the environmentally safe capture and geological storage of CO2, in particular from solid fossil fuel power stations and a range of industrial sectors and subsectors, including in third countries;
(f) to encourage a shift to low-emission and public forms of transport;
(g) to finance research and development in energy efficiency and clean technologies in the sectors covered by this Directive;
(h) measures intended to improve energy efficiency, district heating systems and insulation, or to provide financial support in order to address social aspects in lower- and middle-income households;
(i) to cover administrative expenses of the management of the EU ETS;
(j) to finance climate actions in vulnerable third countries, including the adaptation to the impacts of climate change;
(k) to promote skill formation and reallocation of labour in order to contribute to a just transition to a low carbon economy, in particular in regions most affected by the transition of jobs, in close coordination with the social partners.

Member States shall be deemed to have fulfilled the provisions of this paragraph if they have in place and implement fiscal or financial support policies, including in particular in developing countries, or domestic regulatory policies, which leverage financial support, established for the purposes set out in the first subparagraph and which have a value equivalent to at least 50 % of the revenues generated from the auctioning of allowances referred to in paragraph 2, including all revenues from the auctioning referred to in paragraph 2, points (b) and (c).

Member States shall inform the Commission as to the use of revenues and the actions taken pursuant to this paragraph in their reports submitted under Decision No 280/2004/EC.


4. The Commission is empowered to adopt delegated acts in accordance with Article 23 to supplement this Directive concerning the timing, administration and other aspects of auctioning, in order to ensure that it is conducted in an open, transparent, harmonised and non-discriminatory manner. To that end, the process shall be predictable, in particular as regards the timing and sequencing of auctions and the estimated volumes of allowances to be made available.
Those delegated acts shall ensure that auctions are designed to ensure that:
(a) operators, and in particular any small and medium-sized enterprises covered by the EU ETS, have full, fair and equitable access;
(b) all participants have access to the same information at the same time and that participants do not undermine the operation of the auctions;
(c) the organisation of, and participation in, the auctions is cost-efficient and undue administrative costs are avoided; and
(d) access to allowances is granted to small emitters.

Member States shall report on the proper implementation of the auctioning rules for each auction, in particular with respect to fair and open access, transparency, price formation and technical and operational aspects. These reports shall be submitted within one month of the auction concerned and shall be published on the Commission's website.


5. The Commission shall monitor the functioning of the European carbon market. Each year, it shall submit a report to the European Parliament and to the Council on the functioning of the carbon market and on other relevant climate and energy policies, including the operation of the auctions, liquidity and the volumes traded, and summarising the information provided by Member States on the financial measures referred to in Article 10a(6). If necessary, Member States shall ensure that any relevant information is submitted to the Commission at least two months before the Commission adopts the report.


Fit for 55 legal framework


It is noteworthy that on 28 July 2023 the European Commission opened the public feedback period on the new Commission Delegated Regulation supplementing Directive 2003/87/EC of the European Parliament and of the Council by laying down rules on the timing, administration and other aspects of auctioning of greenhouse gas emission allowances (Ref. Ares(2023)5241866).

What’s important, in the new Auctioning Regulation the overall architecture of Regulation No 1031/2010 will be kept and the auctioning process unchanged, as it is seen as efficient and working well. However, in view of the the extent of the extensive scope of necessary changes to the rules, a new regulation need to be adopted and the Regulation No 1031/2010 need to be repealed.

Regulation (EU) No 1031/2010 needs to be changed to take account of the new rules and elements introduced in Directive 2003/87/EC, including the extension of the scope of the existing EU ETS (ETS 1) to maritime transport and the introduction of a new and separate emissions trading system for buildings, road transport and additional sectors (ETS 2). 

The Auctioning Regulation also need to address changes necessary for the implementation of the auctions for REPowerEU in accordance with Article 10e of Directive 2003/87/EC and for the Social Climate Fund established by Regulation (EU) 2023/955 of the European Parliament and of the Council, as well as for the functioning of the Innovation Fund, established pursuant to Article 10a(8) of Directive 2003/87/EC. 

The new Auctioning Regulation introduces the necessary provisions to allow for the establishment and smooth start of auctions under ETS 2, separately from the auctions for the existing ETS (including of the eligibility criteria for admission to auctions of the ETS 2 regulated entities). With the new Chapter IVa of Directive 2003/87/EC, a new ETS 2 is established as an upstream separate system from ETS 1. Allowances for buildings, road transport and industrial facilities under the ETS 2 will only be allocated via auctioning. While the general ETS I auctioning architecture will apply to ETS 2 as well, some specific provisions are introduced. These include the application of a reserve price at the start of the auctions, specific minimum frequency of auctions, requirement for having a separate bidding window from ETS 1 auctions, and specific rules for determining the auction volumes and auction calendars for ETS 2. In addition, the rules for admission to auctions are updated to include the eligibility of ETS 2 regulated entities.

Due to the need of the regulated entities to hedge or buy ahead allowances to mitigate their price and liquidity risk, a higher amount of allowances will be auctioned early on. In 2027, the auction volumes will therefore be 30 % higher than the total quantity of allowances for 2027 (Recitals 81 and 82 of Directive (EU) 2023/959). 

Moreover, the new Auctioning Regulation introduces the changes related to the provisions for the auctioning of aviation auction volumes. The revised Directive 2003/87/EC includes a phase-out of free allocation for aviation in 2024 and 2025. The phase-out will be complemented by a corresponding increase in the auctioning volume while, from 2026 onwards, most allowances for aviation will be auctioned. Therefore, the new Regulation aligns the provisions for establishing the auctioning volumes for aviation to reflect this change.

In addition, the new Auctioning Regulation introduces clarifications or fine-tuning of existing provisions, based on the lessons learned from implementation.


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