Administrative Changes to the UK-Link Manual

Modification 414 and SIS Removal

David Addison

• UNC Modification 414 – Discontinuation of ANS Usage for Interruption Communications by Transporters

• UNC Modification 414 seeks to remove the obligations on Distribution Networks to use the Active Notification System (ANS) to serve notice of:

• Interruption Notices (G6.8.1)• Interruption Requirement no longer exists (G.6.8.5)

• Since Interruption Reform (UNC Mod 090) no Users have opted to receive communications via ANS, preferring telephone or facsimile notification

• UNC Mod 414 seeks to remove the reference to ANS from Appendix 5B in the above instances

UNC Modification 414

• The following changes will need to be made to the Manual:

UNC Mod 414 – Manual Changes

UNC Ref

Description Fr To Means Form Cont Restrictions and Other Information

G6.8.1 Give Interruption Notice

T U L T/F AN Ct Up to 5 hours before Interruption Start Time

G6.8.1 Notify User that Interruption requirement no longer exists

T U L T/F AN Ct

• Changes will be required to the Manual after UNC Modification has been approved

• As a UNC Modification is required, this should be dealt with as a Class 2 UK Link Modification, but this is expected to have no impacts to Users therefore is proposed as a Class 1 Change

• Update to the manual proposed to be undertaken as a simple administrative change

UNC Modification 414

• Shipper Information Service (SIS) enabled publication of data to UK Link Users

• Service is provided by an out of date application (Lotus Notes) and is not widely used by Users

• Information published has been replaced on other more appropriate mediums, including:

• National Grid website• Xoserve website• Joint Office

• Proposal is to remove SIS, and maintain provision as currently.• Xoserve and National Grid are conducting a review exercise to identify

existing data obligations, and where these are discharged

Shipper Information Service

• An example SIS obligation:

Shipper Information Service

UNC Ref

Description Fr To Means Form Cont Restrictions and Other Information

U7.3.2 (a)

Provide programme of works for improvement of UK Link performance

T U L SIS

U8.2.7 Provide advance notice of Class 2 UK Link Modification

T U L SIS

• National Grid have engaged Users through NG Operations Forum• Some limited Use identified• Users typically happy with alternative data sources currently used

• Users views are sought?

• Next steps…• Formally propose change to the UK Link Manual to remove references to SIS• Undertake changes as an administrative change

Shipper Information Service