The European Energy Exchange (EEX), in coordination with the European Commission, the EU Member States and the EEA EFTA States, has published the revised 2027 auction calendar for EU Allowance (EUA) auctions and the 2027 auction calendar for EU ETS2 Allowance (ETS2A) auctions under the common auction platform (CAP4).
The 2027 EUA auction calendar has been adjusted to reflect auction volumes allocated to the Greek Decarbonisation Fund.
The revised 2027 EUA auction volumes are as follows:
| EU ETS1 | |
| Volume per auction Jan-Aug | 2,215,500 EUA |
| Volume last auction in Aug | 2,322,500 EUA |
| Volume per auction Aug-Dec* | 3,133,500 EUA |
| Volume last auction in Dec* | 3,106,500 EUA |
*The auction volumes from September to December 2027 are preliminary and may be subject to adjustments
Apart from the revised auction volumes, all other auction details remain unchanged. Separately from the European common auction platform, EEX operates auctions on behalf of Germany, Poland and the UK in respect of generation of electricity in Northern Ireland.
In addition, EEX has published the new 2027 auction calendar for the auctioning of EU ETS2 allowances (ETS2A). EEX will conduct ETS2A auctions within the framework of the common auction platform (CAP4) on behalf of the 27 EU Member States and the EEA EFTA States. The auction volumes include allowances allocated to the Social Climate Fund.
The CAP4 ETS2 auctions are scheduled to take place on Mondays, Tuesdays and Thursdays between 18 January and 20 December 2027. The bidding window for each auction will be open from 1:00 pm to 3:00 pm CET. The ETS2A volumes for 2027 are as follows:
| EU ETS2 | |
| Overall volume 2027 | 293,217,500 ETS2A |
| Volume per auction for auction 1-6 (18 Jan – 28 Jan) | 5,530,500 ETS2A |
| Volume per auction for auction 7-12 (1 Feb – 11 Feb) | 3,687,000 ETS2A |
| Volume per auction 15 Feb - 17 Dec | 1,843,500 ETS2A |
| Volume last auction in Dec (20 December) | 1,944,500 ETS2A |
The ETS2A auction volumes are preliminary and may be subject to adjustments.
EEX has also reactivated the previously suspended December 2027 and April 2028 maturities of ETS2 Futures (FEU2 Dec27 and FEU2 Apr28), with the first trading day on 28 September 2026.
ETS2 spot trading will commence with the start of ETS2 auctions, further expanding market access.
EEX provides detailed information in the published auction calendars on its website. Clearing and settlement of all emission allowances is conducted by the European Commodity Clearing (ECC).
The European Energy Exchange (EEX) is a leading energy exchange which builds secure, successful and sustainable commodity markets worldwide – together with its customers and partners. As part of EEX Group, it serves international power, natural gas, environmental and freight markets, and provides data, reporting and registry services. EEX is an enabler of the energy transition and decarbonisation, advancing renewables integration through dedicated products and services, including those related to guarantees of origin. More information: www.eex.com.
