The rolling day-ahead capacity auction shall be held once a day.

Every day, a standard capacity product for the following gas day shall be auctioned through the rolling day-ahead capacity auction.

Capacity for each daily standard capacity product shall be auctioned through the rolling day-ahead capacity auction using a uniform price auction algorithm according to Article 18. Each day, the daily standard capacity product for the following gas day shall be auctioned.

During the rolling day-ahead capacity auction network users shall be able to apply for capacity for one daily standard capacity product.

The bidding round shall open every day at F13.30 p.m.

A capacity bid for the daily standard capacity product for the rolling day-ahead capacity auction shall be handled as follows: submission, withdrawal or amendment from F23.30 p.m. to 4.00 p.m.

The capacity to be offered in the rolling day-ahead capacity auction shall be, each day, equal to:

• A – C + D

• Where:

  • A

    is the transmission system operator's technical capacity for each of the standard capacity products;

  • C

    is the previously sold technical capacity, adjusted by the capacity which is re-offered in accordance with applicable congestion management procedures;

  • D

    is additional capacity, for such day, if any.

At the time the bidding round opens, transmission system operators shall notify network users about the amount of capacity to be offered for the upcoming rolling day-ahead capacity auction.

The allocation results of the auction shall be published, no later than 30 minutes after the closing of the bidding round, simultaneously to individual network users participating in the respective auction.

Aggregated information on the auction results shall be published to the market.