Allocation of interruptible services
Article 32
Open ↗1. As from 1 January 2018, transmission system operators may only offer standard capacity products for interruptible capacity of a duration longer than one day if the corresponding monthly, quarterly or yearly standard capacity product for firm capacity was sold at an auction premium, was sold out, or was not offered. 2. Transmission system operators shall offer a daily capacity product for interruptible capacity in both directions at interconnection points where the respective standard capacity product for firm capacity was sold out day-ahead or was not offered. At unidirectional interconnection points where firm capacity is offered only in one direction, transmission system operators shall offer at least a daily product for interruptible capacity in the other direction. 3. If interruptible capacity is offered, this shall not be detrimental to the amount of firm capacity on offer. Transmission system operators shall not set aside capacity that can be offered as firm capacity in order to offer it as interruptible capacity. 4. To the extent interruptible capacity products other than daily products are offered, the same standard capacity products for firm capacity shall also apply for interruptible capacity, in terms of duration of the products. 5. To the extent interruptible capacity is offered, it shall be allocated via an auction process with the exception of within-day interruptible capacity. 6. Within-day interruptible capacity shall be allocated by means of an over-nomination procedure. 7. Within-day interruptible capacity shall only be allocated when firm capacity, whether technical capacity or additional capacity, is sold out. 8. Where auctions are held for any interruptible products longer than within-day transmission system operators shall, if known, publish the amounts of interruptible capacity on offer before the start of the auction process. 9. If offered, interruptible capacity shall be allocated by means of a separate auction after firm capacity of equal duration has been allocated, but before the auction of firm capacity with a shorter duration starts, with the exception of within-day interruptible capacity. 10. If offered, interruptible capacity auctions shall be conducted in accordance with the same design principles and timescales as applied for firm capacity. The exact auction dates to be used for the interruptible capacity auctions shall be detailed within the auction calendar with the exception of within-day interruptible capacity. For the annual yearly, all annual quarterly and all rolling monthly capacity auctions, the transmission system operators shall notify network users about the amount of interruptible capacity to be offered one week before the auction starts. Where an auction of firm capacity has not closed on the scheduled start day for the interruptible auctions, the interruptible auctions shall open no later than the next business day after the closing of the respective auctions of firm capacity. In such cases, any change in the offered amounts shall be notified at least 12 hours before the start of the respective interruptible capacity auction.