Emissions Auctions

Submission of bids

• Bids may be submitted, modified and withdrawn during the bidding window
• Only authorized persons are entitled to place bids (bidder's representatives) 

Each bid shall state

• Bid volume as integral multiples of lots of 500 allowances
• Price in Euro for each allowance (in two decimal points)
• Identity of the client when bidding on behalf 

Each bid may only be withdrawn

• During the bidding window
• Genuinely mistaken bids can be unwound only under restrictive conditions by EEX upon request of the bidder's representative

All successful bids will be allocated at the auction clearing price, determined as follows:

• Bids are sorted in descending order of the price bid
• Bid volumes are added, starting with the highest bid; the price at which the sum of volumes bid matches or exceeds the volume of allowances auctioned, shall be the auction clearing price
• Tied bids will be sorted through random selection according to an algorithm
• All bids with a price higher than the auction clearing price are successful; Execution of bids made at the auction clearing price depends on their ranking in the random selection
• Partial execution of orders may be possible for the last successful bid matching the auction clearing price, depending on the remaining quantity of allowances

Members who are successful in the auction will have the payment for and the delivery of the EU Allowances won in the auction executed via their delivery account at the ECC.

For more details on the ECC delivery process, please consult the ECC website.

Access to the auctions will be available via the ComXerv EUA Primary Auction Service. The auction platform is a web-based system easily accessible via the internet, with a dedicated login and password provided to admitted members by the EEX Market Supervision department.

Existing EEX emissions spot market members who satisfy the requirements of being eligible to bid under the EU rules may access the auctions via their Spot login and password.

• ComXerv Auction System Production Environment - http://spotauction.eex.com 
• ComXerv Auction System Simulation Environment - http://spotauction-simu.eex.com