1. Optiflow for more capacity and more flexibility during maintenance periods September 2016

2. Agenda Why Optiflow? How does it work?
What will change? (for all shippers)
How can you optimize the use of optiflow? (for multipoint shippers)
Planning
September 2016

3. Agenda Why Optiflow? How does it work?
What will change? (for all shippers)
How can you optimize the use of optiflow? (for multipoint shippers)
Planning
September 2016

4. Your need: to reduce the impact of maintenance
GRTgaz is implementing an action plan to reduce the impacts of maintenance (GT structure 2016 June the 2nd )
2 principal lines:
Technical: inter-operators coordination, minimization of margins for the maintenance schedule, temporary repair
Commercial: within-day capacity release, Optiflow
September 2016

5. Capacity offer is not maximised during maintenance
You need:
increased availability of capacities during maintenance periods
flexibility:
In order to chose the best route among your sourcing schemes
Until within day (short term optimization)
visibility on the available capacity on D day
While GRTgaz current offer:
restrictions are given by Contractuel Point whereas the real physical constraints sometimes impact several points
Some capacities remain unused whereas the demand is here
September 2016

6. Our solution: Optiflow
to maximise and optimize the use of your capacities during maintenance periods
In case of maintenance on the core of the network, the restriction is mutualized on several points (called «Superpoints» ), giving you more flexibility on each point...
Maintenance on Cuvilly (core network)
Maintenance on Dunkerque IP: direct impact on DK IP capacities.
Optiflow is not applicable
Indirect impact on IPs.
Optiflow is offered
September 2016

7. Agenda Why Optiflow? How does it work?
Mutualizing the constraint
A few examples: 2 entries, 1 exit, « by shipper »
The main principles
The 4 superpoints in 2017/18
What will change? (for all shippers)
How can you optimize the use of optiflow? (for multipoints shippers)
Planning
September 2016

8. How does it work? Flexibility gain
With Optiflow, the available capacity (CTE) is given on a group of points called « Super-Point ».
A « Superpoint » can be constituted of PIR or PITTM
Without
Optiflow
Capacity availability
Max X = 250
Max Y =250
GRTgaz decides for the Shippers
With
Optiflow
Max (X+Y) = 500
Shippers can choose their points
Example :
Nom X= 450 / Nom Y = 50
Superpoint « X + Y »
Firm subscribed capacity = 500
Firm subscribed capacity = 500
PIR X
PIR Y
Remaining Capacity during maintenance
= 500
Max Capacity
= 1000
Flexibility gain
September 2016

9. With an exit, more entry capacity!
Superpoint :
« TH + Ober (-Oltingue) »
Maintenance
on Cuvilly
It also works with backhaul
Capacity gain
And also the choice between Ober and TH…
September 2016

10. With an exit, more entry capacity!
Maintenance on Cuvilly
example of restriction
TH + Ober < Oltingue
Capacity Restrictions
On the entries
Entries
Exit TH
Ober
Oltingue
Without Optiflow
The restrictions are distributed by point on subscriptions pro-rata
Exit nominations are not considered
Max entry Capacity
300
Hypothesis : 0
With Optiflow
No restriction by point
A mutualized restriction to respect
The nominations are taken into account!
Max entry Capacity
TH + Ober < Oltingue
∑ Nominations
example of use
600
100
You have more entry capacity when nominating on exit
You have flexibility on the entry points
You can maximise the use of your favorite point
Capacity: 700 > 600 !
Flexibility: 600 > 300 !
September 2016

11. How does it work « by shipper »
How does it work « by shipper »? for the Superpoint : « TH + Ober (- Oltingue)»
With Maintenance: « TH + Ober (- Oltingue) » < 600
Without Maintenance:
1200
COS
GWh/j
Capacité Opérationnelle Effective :
COS
GWh/j
COE = COS x TRF sp
600
600
All Shippers
COE
GWh/j
Shipper A
Restriction
CTE = 600 GWh/j
=> TRf sp = 50 %
600
200
Olt
100 TH
Ober
100
300
150
200
∑ Entries : « TH + Ober »
∑ Entries : « TH + Ober »
For the Shipper A
One individual restriction to respect :
TH + Ober < Nominations Exit Oltingue TH
Ober
Oltingue
Without Optiflow
Max 100
Max 50
example of use
With Optiflow 50
100
200
September 2016

12. Optiflow main principles (1/2)
You still subscribe capacity and nominate on the contractual points
The « Superpoints » are only used to display the mutualized restrictions
September 2016

13. Optiflow main principles (2/2)
Optiflow is activated in case of CTN restriction (CTEsp < CTNsp)
Then, no more capacity (DA&WD) is sold on the entry points of the Superpoint
Optiflow is applied by shipper
you have more visibility
The UBI is calculated by Superpoint
Accessible to all shippers
Your nominations are optimized to respect the restrictions
Initial nominations (curtailed to COE) pro-rata
and then are matched with the adjacent TSO
For each nomination cycle
September 2016

14. Optiflow 2017/2018 : 4 Superpoints
September 2016

15. After 2018, one Single Market Place
As of 2018 November the 1st: Single Market Place
Our network’s limits will be managed with superpoints, to give you more flexibility
Until 2018, 2 market places
After 2018, one Single Market Place
If we reach a limit, the impacts are transferred upstream or downstream from the limit
The limits’management is mutualized on groups of points = the Superpoints!
If we reach a limit, the N>S Link is impacted
PEG NORD
TRS
September 2016
Exit PCR / Entry PCR

16. Optiflow: the simulator
To help you to understand how it works GRTgaz developed a simulator
Video 1
September 2016

17. Agenda Why Optiflow? Who is concerned? How does it work?
What will change? (for all shippers)
The maintenance schedule display: mutualized restrictions
The UBI: extended to superpoints
How can you optimize the use of optiflow?
Planning
September 2016

18. What will change? 1. The maintenance schedule publication and display
For all shippers
The restrictions will be displayed:
by point for maintenance impacting one single point (individuel restriction)
by Superpoint for core network maintenance, impacting a Superpoint
The restriction on a Superpoint is only applied to Entry points. Exit points are considered like bonus when you nominate.
To know the restriction on one point, you will have to take into account:
restrictions on this single point
and restrictions on the superpoints including this point
you still subscribe capacity and nominate by point
Video 2
September 2016

19. 1 Individual + 2 Superpoints
What will change? 1. The maintenance schedule publication and display
Example 3.1 of the Simulator
In this example, TH has 3 restrictions:
1 Individual + 2 Superpoints
The COE or COEsp values are surrounded by red when restrictive (< COS)
September 2016

20. What will change? 1. The maintenance schedule publication and display
The same example if you only have capacity on DK:
DK has no individual restriction but 2 Superpoint restrictions
Your restriction on DK = min (14,38) = 14 GWh/j
Current situation:
September 2016

21. What will change? 1. The maintenance schedule publication and display
This new display is applied on all maintenance publications (ACO, BCO, PCO, PTC…)
More lines are added corresponding to Superpoints data (CMNTt…)
If you search one point: this point and all Superpoints including this point appear
Extract from the maintenance schedule:
September 2016

22. What will change? 2. The UBI extended to Superpoints
For all shippers
If a Superpoint is activated, the UBI is applied on this Superpoint.
Example:
The shippers did not used the full capacity of TH+Ober. 100 GWh/d remain unused.
These 100 are offered via UBI on the Superpoint TH+Ober.
If you have only subscribed TH: you can nominate more on TH (you will also benefit from the unused capacity on Ober)
If other shippers nominate on an exit included in the SP: you have more UBI on TH+Ober
September 2016

23. What will change? 2. The UBI extended to Superpoints
Vigilance issue with UBI for « multipoints shippers »:
Using UBI might prevent you from maximising one point!
Example:
- If you want to maximise TH (50) and ask for UBI (20) on Ober: it is not possible to separate your « firm » demand and your UBI demand.
- So, if you nominate your max on TH and your UBI demand on Ober, your UBI allocation will be reallocated on both points because of the redistribution rule to initial demand prorata.
In this example you only have 43 on TH instead of 50…
Note that a fully allocated UBI demand has no impact on the distribution of your programmation (« firm » and UBI).
September 2016

24. Agenda Why Optiflow? How does it work?
What will change? (for all shippers)
How can you optimize the use of optiflow? (for multipoints shippers)
How to maximise your favorite point?
How to take advantage of your exits and backhaul?
Lets understand how nominations are curtailed
Planning
September 2016

25. How to optimise the use of Optiflow
1. How to maximise your favorite point? (flexibility gain)
Optiflow gives you flexibility: you can now maximise your favorite point
Example:
You can maximise DK up to min (50;73) = 50 GWh/j
And then you can still nominate up to min (73-50; 27) = 23 GWh/j in TH
Or :
You can maximise TH up to min (27;73) = 27 GWh/j
And then you can still nominate up to min (73-27; 50) = 46 GWh/j in DK
September 2016

26. How to optimise the use of Optiflow
The « nomination screen » of the simulator helps you to calculate the maximum quantity you can nominate on each point.
Example :
Before nominating: Max Qty on a point = min coe (point and sp)
DK: 27; TH: 35; Ober: 24
September 2016

27. How to optimise the use of Optiflow
The « nomination screen » of the simulator helps you to calculate the maximum quantity you can nominate on each point.
The « Maximum quantity » value and the « Remaining quantity » value are updated in real time with your nominations on the others points :
Video 3
September 2016

28. How to optimise the use of Optiflow
2. How to take advantage of your Exits and Backhaul?
Video 4
Nominating a quantity on an Exit and on Backhaul allows you to nominate the same quantity more on the entry points included in the same Superpoint.
In this example:
Nominating 10 on Alveringem allows you to nominate 10 more on DK or TH
DK + TH ≤ 73 - Alv = = 83
The additonial quantity allowed by nominating on an Exit/Backhaul point of a Superpoint is taking into account by the SI system on the following nominations cycle.
In this example :
Nominating 10 on Alveringem on cycle n allows you to nominate 10 more on DK or TH on cycle n+1
September 2016

29. How to optimise the use of Optiflow
3. Lets understand how nominations are optimized (on a simple example)
Optiflow curtails by rising levels of COE, from the COE by point to the COEsp of the biggest Superpoint.
Main principles: Optimisation by increasing level
Level 0: individual points
Level 1: « small » SP including no other SP
Level 2: « big » SP including another SP
For each level, curtailments are made to « nominations curtailed to COE » pro-rata
(+ re-distribution if needed in Level 2)
Video 5
Level 2
Level 1
Level 0
September 2016

30. How to optimise the use of Optiflow
3. Lets understand how nominations are curtailed (on a simple example)
September 2016

31. How to optimise the use of Optiflow
3. Lets understand how nominations are curtailed (on a simple example)
There is no restriction on individual points, Level 0 = max (Nomination, COE). Only DK is curtailed:
SP DKLNG + DK: = 70 > 45, so each point is curtailed to level 0 pro-rata
SP DKLNG + DK-ALV+TH: = 85 < 89, so no need to curtail
September 2016

32. Agenda Why Optiflow? How does it work?
What will change? (for all shippers)
How can you optimize the use of optiflow? (for multipoints shippers)
Planning
September 2016

33. « Optiflow » for Maintenance 1 st April 2017
Planning
« Optiflow » for Maintenance
1 st April 2017
Q Workshops
1st Maintenance schedule: Excel (SP included)
Nov 16:
2nd Maintenance schedule:
Excel (SP included)
Fev17:
Official Maintenance schedule (PTC)
- Excel (SP included)
- (SP non-included)
1st April 2017: Optiflow for Maintenance
Official Maintenance schedule (PTC) on (SP included)
Q1 2017:
change management
September 2016

34. Any questions?
September 2016

35. Back up slides
September 2016

36. How to optimise the use of Optiflow
3bis. Lets understand how nominations are curtailed (on more complex examples)
GRTgaz optimises your nominations so that if you are curtailed, the rest can be distributed on other points, using the superpoints flexibility.
Main principles: Optimisation by increasing level
Level 0: individual points
Level 1: « small » SP including no other SP
Level 2: « big » SP including another SP
(+ re-distribution if needed)
Level 2
Level 1
Level 0
September 2016

37. How to optimise the use of Optiflow
Management of the overlaps case:
4 main steps:
Step 1: optimisation of each « side » of TH separately
(TH is in the middle of « overlaps »)
Step 2: selection of TH flow value
= min TH (North Side; South Side)
Step 3: calculation of the quantity to be redistributed
Step 4: redistribution (to « level 0 » pro-rata, taking into account the restrictions)
North side
South side
September 2016

38. How to optimise the use of Optiflow
3bis. Lets understand how nominations are curtailed (on more complex examples)
Ex 1: Re-distribution in level 2
Ex 2: Overlaps with a lot of subscribed points
Ex 3: Overlaps with 2 subscribed points
September 2016

39. How to optimise the use of Optiflow
Example 1: Re-distribution in level 2
September 2016

40. How to optimise the use of Optiflow
Example 1: Re-distribution in level 2
No restriction on individual points, Level 0 = max (Nomination, COE).
Level 1: =200 > 50; so, curtailment to level 0 pro-rata
Level 2: = 150 > 135; so, curtailment to level 0 pro-rata
But: 45 > 25, so curtailment to 25, and there are twice 45-25= 20 to redistribute on the other point of the superpoint
On TH: =85 <100, so it is ok

41. How to optimise the use of Optiflow
Example 2: Overlaps with a lot of subscribed points
September 2016

42. 3. The optimization of your nominations – complex example
Step 1: optimisation of each « side » of TH separately
1. North of TH
2. South of TH
Level 0: min (Nomination, COE)
No Level 1 (= sp dklng + dk)
Level 2: = 110 > = 98
So each point is curtailed to level 0 pro-rata; ex: DK: 50 * 98 / 110 = 44,4
Step 2: selection of TH flow value 36
Step 4: redistribution (to « level0 » pro-rata, taking into account the restrictions)
Distribution on the side with max value of TH
Max by point = level0 - level2
so all cannot be distributed
Step 3: calculation of the quantity to be redistributed (44-36)
September 2016

43. How to optimise the use of Optiflow
Example 3: overlaps with 2 points subscribed
September 2016

44. How to optimise the use of Optiflow
Example 3: overlaps with 2 points subscribed
Step 1: optimisation of each « side » of TH separately
Step 2: selection of TH flow value
Step 3: calculation of the quantity to be redistributed (44-36)
Step 4: redistribution (to « level0 » pro-rata)
Be careful: the COEsp of 6 GWh/d on SPn°2 is not like an individual restricition on TH for the optimization of your nominations.
September 2016

45. September 2016