Capacity, nomination, allocation and balancing
Shippers can book capacity in the gas transmission system on a yearly, quarterly, monthly or daily basis. Secondary trading can also be booked as assignment or transfer of use. Shippers balance the gas system on an hourly basis. They nominate their expected gas requirements and are allocated after specifications specified by Energinet. Energinet is responsible for matching amounts with adjacent systems.
Primary and secondary capacities can be traded at these trading platforms:
PRISMA Platform – online platform for auctioning and trade of gas transport capacity within the EU. Start (prisma-capacity.eu)
GSA Platform - online platform for auctioning and trade of gas transport capacity at the Faxe point (towards Poland). GSA (gsaplatform.eu)
The methods and process for calculating the technical capacity of the gas system are described in https://en.energinet.dk/gas/transparency/gas-transmission-capacities/
Use of gas capacity in the Danish gas system including firm and interruptible capacity in both directions of the Danish gas system: https://www.energidataservice.dk/tso-gas/GasCapacityUsage
Secondary trading (found more description on https://help.prisma-capacity.eu/) :
Terms and conditions for booking and allocation of capacity is described in clause 5 of the General Terms and Conditions. Secondary bookings in clause 5.2.3 and 5.2.4. Also handling of bottlenecks in the gas system and measures to prevent hoarding is mentioned.
Procedures in case of interruption of interruptible capacity is described in clause 6.5.2 and 6.5.3 of the Generel Terms and Conditions
Future capacities in the Danish gas transmisison system are calculated and described on this page:
Tariffs and fees:
Nomination, allocation and balancing
Shippers balance the gas system on an hourly basis. They nominate their expected gas requirements by AS4/edigas communication and are allocated after specifications specified by Energinet. Energinet is responsible for matching amounts with adjacent systems. Nomination is also possible via Energinet Online.
Edigas communication guide: Edigas XML (energinet.dk)
Energinet Online (Approved shippers only):
Balancing the gas system is described in clause 9 and 17 of General terms and conditions.
More about balancing can also be found here: Gas balancing model (energinet.dk)
Data related to nominations and renominations in both directions in the Danish gas system can be downloaded from Energidataservice: