Transcript Nomination update

EU Gas Balancing Code – Nomination Update
[Revised to reflect action TX1002]
Action TX1002: EU Balancing Code/Nominations: Provide an
overview of what areas/decisions National Grid has autonomy
over, and those that must be agreed with other parties.
Nomination Process at IPs
Balancing Code Defines:
1.
Nomination Deadline
2.
Nomination Confirmation Deadline
3.
Renomination Process Timings
2
NG Impact Assessment [May 2013]
Impacts
Action
Major
• New Nomination procedure at Interconnection Points (IPs) is
a significant impact for GB
• Nomination related procedures contained in Gas Balancing,
CAM, CMP and Interoperability Codes
• NTS have been investigating the interactions between these
codes
• A number of policy/implementation issues have been
analysed and our initial view on them has been defined
• Where possible consistency with the GB regime [non IPs]
has been maintained
• NG NTS is happy to discuss any of these issues in further
detail
• The end to end process/system needs to be mapped
• Nomination process and policy views to also be discussed
with Adjacent TSOs. No code requirement to conduct a
specific industry consultation on EU Nominations rules.
Nomination Policy – NG Current View
 Nominations can be submitted from D-30 as per the UNC
(the EU Balancing Code is silent on this point) [Application
TBC with adjacent TSOs]
 National Grid will not be offering a Pre-nomination cycle
[TSOs may agree to offer]
 Over-nomination requests for within-day interruptible
capacity will not be offered: [TSO may reject nom if
allocated capacity is exceeded and/or may treat over-nom
as a request for interruptible capacity]
 The GB regime will continue whereby Nominated gas quantities will not be
validated by National Grid against any prevailing Entry or Exit Capacity
Entitlement except in the case of an Exceptional Event
 Any quantities of gas allocated to NTS Users in excess of Entry or Exit
Capacity Entitlement will accrue Overrun Charges
Nomination Policy – NG Current View (2)
 A User holding both Bundled Capacity and Unbundled
Capacity at an IP may submit separate Single Sided
Nominations and Double Sided Nominations [CAM/Bal is
only concept level – application TBC with adjacent TSOs]
 A ‘Single Sided Nomination’ is a notice issued by a User to
an Initiating Transporter, who forwards this to the Matching
TSO
 A ‘Double Sided Nomination’ is a notice issued by the
User/s either side of an IP to their respective Transporters
 National Grid intends to maintain the requirement for the
provision of flow notifications from operators at NTS entry
and exit points (i.e DFNs and OPNs) [TSO may require
network users to provide further information]
Nomination Assumptions
 Prior to the implementation of the Nomination rules,
National Grid and the adjacent Transporter will agree
(and specify within the IA):
 Identity of Initiating Transporter and the Matching Transporter
 The harmonised information contained within the data
exchange for the matching process - ‘EDIGAS xml’ messages
will be utilised
 The agreed method to ensure that the Processed Quantities for
the National Grid User and the User’s Counterparty are equal
(which by default shall be the ‘Lesser Rule’)
 The adjacent TSO will be; Interconnector UK (IUK),
BBL & Gas Link (subject to outcome of two way/three
way capacity bundling discussions)
Nomination Process Overview
Nomination
process
D-1
13:00
Start
Rejection
Rules
Nomination & renom
No later
than 2 hrs
It does not comply with requirement for
content
Submitted by incorrect body
Nomination against bundled
capacity may be submitted
via a single sided
nomination
Nomination against
unbundled capacity shall be
submitted via a double sided
nomination
Results in negative flow rate
Exceeds Shippers allocated capacity [only
expected to be used in Exceptional Events]
Shipper submits nom no later
than 13:00 (latest nom will be
used)
1
2
Within 2
hrs
45 mins to calc and send
Processed Quantity by Initiaiting
TSO
Matching
45 mins to calc and send
Process /
Interop Confirmed Quantity by Matching
TSO
D-1 13:00
If no valid nom sent before deadline the TSOs
default shall apply - zero
Matching Process Principles
Single sided Nom – Processed Quantity
= Confirmed Quantity
Double sided Nom – “Lesser rule” used
to determine Confirmed Quantity
3
Content of a Daily Nom
D-1 15:00
30 mins for Confirmation to
Shippers
Confirmation Notice issued to Shipper no
later than 15:00
Units (kWh)
In Exceptional Events NG may amend the
gas quantity requested in nom/renom in
accordance with National Rules
Renomination only
Renom
process
No later
than 2 hrs
Capacity Allocation Exceeded for remaining
hrs [only expected to be to be used in
Exceptional Events]
NOTE
If nom or renom rejected TSO shall use
Users last Confirmed Quantity
SHALL NOT REJECT (if nom inputs do not =
nom outputs)
Within 2
hrs
Matching Process Principles
Single sided Renom – Processed
Quantity = Confirmed Quantity
Double sided renom – “Lesser rule”
used to determine Confirmed Quantity
45 mins to calc and send
Processed Quantity by Initiaiting
TSO
Matching
45 mins to calc and send
Process /
Interop Confirmed Quantity by Matching
TSO
Revised Confirmed Quantity sent
by TSO[s] in Confirmation Notice
(before gas flow change comes
into effect)
From D-1 15:00 to
D 02:00
On hour
bar
Renom cycle starts at every
hour bar (latest renom will be
used)
5
4
Shippers may submit a
renom
Example 1 – “Easy” match (Double Sided Nom)
Interconnection Point
Adjacent Transporter's Transmission Network
National Grid Transmission Network
User A Nomination
18
User B Nomination
18
User A NTS Exit Capacity Entitlement
20 (Unbundled)
User B Entry Capacity Entitlement
20 (Unbundled)
Processed Quantity
18
MATCH
Processed Quantity
18
Confirmed Quantity (to User A)
18
Confirmed Quantity (to User B)
18
User A Charges
20 Capacity, 18 Commodity, 0 Overrun
User B Charges
As per Adjacent Transporter arrangements
Example 2 – “Easy” match (Single Sided Nom)
Interconnection Point
National Grid Transmission Network
(In this example, the Initiating Transporter)
User A Nomination
18
Adjacent Transporter's Transmission Network
(In this example, the Matching Transporter)
Forwarded by National Grid
User A NTS Exit Capacity Entitlement
20 (Bundled)
Processed Quantity
18
User A Nomination (forwarded)
18
User A Entry Capacity Entitlement
20 (Bundled)
MATCH
Processed Quantity
18
Confirmed Quantity (to User A)
18
Confirmed Quantity (to User B)
18
User A Charges
20 Capacity, 18 Commodity, 0 Overrun
User A Charges
As per Adjacent Transporter arrangements
Example 3 – “Easy” match (Multiple Double Sided Nom)
Interconnection Point
National Grid Transmission Network
Adjacent Transporter's Transmission Network
User A Nomination 1
5
User B Nomination
5
User A NTS Exit Capacity Entitlement
20 (Unbundled)
User B Entry Capacity Entitlement
5 (Unbundled)
Processed Quantity
5
Processed Quantity
5
MATCH
Confirmed Quantity (to User A)
5
Confirmed Quantity (to User B)
5
User A Charges
5 Capacity*, 5 Commodity*, 0 Overrun
User B Charges
As per Adjacent Transporter arrangements
User A Nomination 2
15
User C Nomination
15
User A NTS Exit Capacity Entitlement
20 (Unbundled)
User C Entry Capacity Entitlement
15 (Unbundled)
Processed Quantity
15
Processed Quantity
15
MATCH
Confirmed Quantity (to User A)
15
Confirmed Quantity (to User C)
15
User A Charges
15 Capacity*, 15 Commodity*, 0 Overrun
User C Charges
As per Adjacent Transporter arrangements
* one single Capacity Charge levied for 20 units, one single Commodity Charge levied for 20 units
Example 4 – Lesser Rule (Double Sided Nom)
Interconnection Point
National Grid Transmission Network
Adjacent Transporter's Transmission Network
User A Nomination
18
User B Nomination
15
User A NTS Exit Capacity Entitlement
20 (Unbundled)
User B Entry Capacity Entitlement
20 (Unbundled)
Processed Quantity
18
NO MATCH
Confirmed Quantity (to User A)
15
User A Charges
20 Capacity, 15 Commodity, 0 Overrun
Processed Quantity
15
Confirmed Quantity (to User B)
15
Matching rule applied as specified
in Interconnection Agreement
default 'Lesser
Rule' used in this example.
User B Charges
As per Adjacent Transporter arrangements
Example 5 – Overrun (Double Sided Nom)
Interconnection Point
Adjacent Transporter's Transmission Network
National Grid Transmission Network
User A Nomination
25
User B Nomination
25
User A NTS Exit Capacity Entitlement
20 (Unbundled)
User B Entry Capacity Entitlement
25 (Unbundled)
Processed Quantity
25
MATCH
Processed Quantity
25
Confirmed Quantity (to User A)
25
Confirmed Quantity (to User B)
25
User A Charges
20 Capacity, 25 Commodity, 5 Overrun
User B Charges
As per Adjacent Transporter arrangements