2 October 2015
We are experiencing some issues in Gemini with the nomination process for Interconnection Points (IPs) only. This has been due to shippers inadvertently entering incorrect information regarding our adjacent TSO reference numbers. To help us ensure nominations and renominations are matched correctly, information on how to enter nominations has previously been communicated and we have summarised this information below. Therefore please refer to the table below to help you clarify what information should be entered for IP nominations and renominations.
Points of clarity for EU nominations in Gemini
Gemini will populate the EIC Code into the screen for your company, but does not populate our adjacent TSO references, these need to be entered correctly.
Each of our adjacent TSO systems require different reference numbers (See table below). These range from EIC Codes, Shipper Short Codes or Type of nomination code and we ask that you confirm these with the adjacent TSO for the IP you are nominating at.
Reference numbers for each IP
TSO | Nomination type | NG reference | TSO reference |
---|
IUK | SSN | EIC | IUK Code |
IUK | DSN | EIC | IUK Code |
BBL | SSN | EIC | BBL Code |
BBL | DSN | EIC | BBL Code |
GNI | SSN | EIC | EIC Code |
GNI | DSN | EIC | EIC Code |
PTL | SSN | EIC | SSN |
PTL | DSN | EIC | EIC Code |
We would also like to draw your attention to a number of other factors to ensure the nomination matching process can operate successfully.
- A DSN should only be used where two different counterparties are nominating. Gemini will reject DSN for the same counterparty.
- For a DSN the counterparty must enter a nomination on the adjacent TSO system in order for the matching process to occur
- Please ensure the information entered is correct before saving to ensure nominations can be matched in a timely manner.
- Please note Gemini does not validate the references for adjacent TSOs
If you experience difficulties please contact either the National Grid EU programme team on 01926654127 or the Xoserve helpdesk if you experience system issues.
30 September 2015 Nomination Update
There are three areas of the Nomination process you need to be aware of as they form a key part of the process and initially are not functioning as expected until we have made some changes to Gemini.
1: Nomination Lock out:
For a temporary period from 1 st October no IP re-nominations will be possible on Gemini whist the matching cycle is in progress. This is the period between the process quantity populating on the Gemini screen at around (HB+4 minutes) and the confirmed quantity populating on the Gemini screen. This time period varies by IP but from testing for IUK and BBL this will be around 20 minutes past the hour bar and for GNI/PTL it will be around 35 minutes past the hour bar. (It will not be possible for the same matching pair to be updated with a new nomination. This will also include any matching pairs that although may not have a new nomination in the current hour bar, but have been “used” in the current gas day). This is due to the fact that the adjacent IPs require a full set of nominations each time we send the file. National Grid are working with Xoserve to resolve the issue and we are currently expecting a solution in Gemini within a few weeks of go live subject to technical analysis. We will keep you updated on progress via the UE Codes Implementation Webpage.
2: SSN& DSN Duplicates
PTL have developed their systems to allow SSN & DSN ‘duplicates’ to be placed for the same gas day. However this has not been implemented by any other TSO (and for at least one, such a pair of nominations would be rejected). For clarity this functionality has not been implemented in Gemini and so cannot currently be undertaken. We are reviewing this issue with the Regulators and will keep you informed of progress
3: Nomination Start Time:
For a temporary period from 1 st October when placing nominations in Gemini, it will default to 05:00 start time for day ahead nominations and plus two hours from the next hour bar when in day. However we have a small issue in that when placing nominations during the period 21:00 through to 00:00 hour bars the screens are not always auto populating, so there is a requirement for these hour bars only to check and if the field is blank to select a start time. In day this must be plus two hours from the next hour. (i.e. if placing nomination at 21:18 the start time required will be 00:00 as a minimum). National Grid are working with Xoserve to resolve the issue and we are currently expecting a solution in Gemini within a few weeks of go live subject to technical analysis. We will keep you updated on progress via the UE Codes Implementation Webpage.
Gemini user contingency spreadsheet for new EU nomination matching process at IPs
In the event we have to call, to go to contingency due to a Gemini issue generally or we have an issue with the new nomination matching process, please find attached the pro-forma that will be required to be filled out in order to keep the process going. This is a temporary process via this message to cover us for the first month of use in case there are any teething issues with the process. Should there be a requirement to use this form an ANS message will be sent to the community.
This process will at a future date be added to the usual Gemini Contingency area on the National Grid Website, this is just a temporary placement to ensure we have the process covered. And a message will be sent to inform you of this.
Shipper Contingency Form: Contingency spreadsheet - new EU nomination matching process at IPs
Any questions or queries can be sent to [email protected] or ring 01926 654 127
11 September 2015
Further update which includes the transitional arrangements for APIs under the new nominations process at EU Interconnection Points (IPs):
Transitional Arrangements during September 2015 only:
Gemini will accept nominations at IPs throughout the entire 30 day period prior to 1st October 2015, e.g. from 1st September 2015 for gas flow day 1st October 2015. However as part of National Grid’s EU systems changes, nominations at IP’s input prior to planned Gemini code releases will not be retained by the system as they will not comply with the information requirements of the new nominations process and they will therefore not be processed. In addition, shippers will not be able to place any nominations via APIs until full deployment is complete on 22nd September 2015.
Therefore for gas flow days from 1st October 2015 onwards, even if nominations have already been submitted:
At IUK IP and BBL IP, users will need to submit either:
- screen based nominations on or after D-20, or 11th September 2015, or
- nominations via APIs on or after D-9 or 22nd September 2015
At Moffat IP, users will need to ensure they submit nominations on or after D-9, or 22nd September 2015, whether screen based or through APIs.
For the avoidance of doubt, existing APIs for non-EU Interconnection Points are not subject to transitional arrangements and should continue “as normal”
The maximum notice periods available will then increase incrementally from Gas Flow Day 1st October 2015 until the full 30 day notice period is available. After this point these transitional arrangements will cease.
1 September 2015
By 1st October 2015, GB and adjacent transmission system operators (TSOs) aim to begin “go live” with changes which will ensure compliance with relevant provisions of the EU Network Codes. Please find below an update with regards to the arrangements for the new nominations process at EU Interconnection Points (IPs).
Overview of the Arrangements post 1st October 2015:
The new regime introduced by UNC Modification 0493 allows for a gas flow nomination at IPs to be sent to National Grid up to 30 days in advance of the gas day. No processing of this nomination submission takes place until 13:00 on D-1. If during the 30 day period a nomination is resubmitted prior to the nomination deadline, only the last such nomination submitted is processed with the associated nomination to the adjacent TSO at the IP, a “counterparty pair”.
Transitional Arrangements during September 2015 only:
Gemini will accept nominations at IPs throughout the entire 30 day period prior to 1st October 2015, e.g. from 1st September 2015 for gas flow day 1st October 2015. However as part of National Grid’s EU systems changes, nominations at IP’s input prior to planned Gemini code releases will not be retained by the system as they will not comply with the information requirements of the new nominations process and they will therefore not be processed.
Therefore for gas flow days from 1st October 2015 onwards, even if nominations have already been submitted:
- At IUK IP and BBL IP, users will need to ensure they submit nominations on or after D-20, or 11th September 2015.
- At Moffat IP, users will need to ensure they submit nominations on or after D-9, or 22nd September 2015.
The maximum notice periods available will then increase incrementally from Gas Flow Day 1st October 2015 until the full 30 day notice period is available. After this point these transitional arrangements will cease.