1 Written procedure can be activated by Fluxys Belgium as fallback mechanism, should PRISMA or EBS platforms
be unavailable. Entry and Exit Services on IPs, VIPs and LNG Terminals, Quality Conversion Services and on Domestic
Points can also be implicitly allocated by Fluxys Belgium to network users in case overnomination is being activated
for such Connection Point. Overnomination will be activated when all Firm Transmission Services are sold after the
Firm Day-Ahead auction or Firm Within-Day auctions, or as a fallback mechanism when PRISMA platform should
2 (Y)= Yearly, (Q)= Quarterly, (M)= Monthly, (DA)= Day-Ahead, (WD)= Within-Day, (WD24h)= Within-Day product
containing maximum number of Hours in a Gas Day being 23/24/25 Hours, (B-o-Y)= Balance of Gas Year, (GD)=
Gas Day, (B-o-D)= Balance of Gas Day.
3 As from 01/04/2022 it will be included in the VIP THE-ZTP(subject to a pre notice of 4 weeks).
4 As from 01/04/2022 it will be included in the VIP THE-ZTP(subject to a pre notice of 4 weeks).
5 As from 01/04/2022 (subject to a pre notice of 4 weeks).
6 Implicit allocation of Transmission Services at Zeebrugge also possible in the framework of the Imbalance Transfer
7 With the subscription of Dunkirk LNG Terminal entry capacity the associated Cross Border Delivery Service will be
implicitly allocated meaning that they are matched in quantity, time and Capacity Type as described in ACT –
Attachment A. No capacity will be allocable for a service period shorter than 1 gas day.
8 Except for Short haul Services Wheeling and OCUC for which both Interconnection Points are sold via FCFS: in this
case the conversion into Short haul Services can be done for a Service Period of any duration of at least 1 Gas
Day. For Dunkirk LNG where OCUC are offered associated with a Cross Border Delivery Service for the same Service
Period which can be shorter than for monthly capacities.
9 The possibility to use PRISMA to subscribe the Quality Conversion Service H->L Base Load is being developed.
The start date will be communicated via website by the TSO. Until then, the procedure to subscribe the Quality
Conversion Service H->L Base Load remains manual.
10 Any duration provided the end date doesn’t extend beyond 30/09/Y+1 ; Balance of Gas Year (B-o-Y) can be
as well requested via written request.
11 Implicitly allocated with an Entry Service.
12 As from 01/07/2023, subject to a pre notice of 4 weeks.
13 First via subscription window (written only), for which Year and/or Multi-Year products are allocated pro rata
request (Base and Seasonal), with a priority for longest period for Peak product. After subscription window (written
only) Balance of Gas Year products are allocated via FCFS principle and are subject to availability and to the
required logistics (e.g. with nitrogen suppliers). Service will be stopped as from 01/04/2023.
- Seasonal load quality conversion service will only be available until 31 March 2023 for Gas Year 2022-2023,
afterwards the Service will no longer be available.
- Base load quality conversion service will only be available until 31 March 2023 for Gas Year 2022-2023, afterwards
the Service will no longer be available.
14 The possibility to use PRISMA to request the Diversion of existing services is being developed. The start date will
be confirmed by the TSO at least 4 weeks in advance. Until then, the procedure remains manual.