DSC Delivery Sub-Group 08/05/ PDF Free Download

DSC Delivery Sub-Group 08/05/2018

Agenda Defect Dashboard Release 2 update Release 3 update Actions New Changes Prioritisation Ratification XRN4658 Read validation increasing outer tolerance value for specific AQ bands for Class 3 & 4 Meter Points AOB AQs of 1 XRN4525 Transparency of Rolling AQ XRN4576 Class 4 Transfer Reads not Visible to Shippers in DES discuss output of impact assessment XRN3667.A Provision of Formula Year AQ and SOQ data

Defect Dashboard

XRN4361 UK Link Release 2 Project Status Update

XRN4361 UK Link Release 2 - Delivery 30 th April 2018 Overall Project RAG Status Plan/Time Risks and Issues Cost Resources G RAG Status G A G G Status Explanation Objective Plan/Time Risks & Issues Full project delivery of UK Link Future Release 2 Scope UAT has completed for 10 CRs, 4 CRs are on track and 2 CRs at risk to meet the UAT milestone date of 18 th May. XRN4316 plan has been assessed for downstream risk to Performance Testing being completed to plan Performance testing commenced on 30 th April and is tracking to plan Clarification on the R2 Implementation approach/plan was provided at the DSG on 30 th April - Link, ChMC to consider approval on the 09 th May Customer Training plan has been updated with the delivery dates and was discussed at ChMC on the 07 th March Link. Plans is communicated in the Testing Report (High Level Timeline Tab) - Link Primary Scope (PS) Update XRN4449 (Priority Services Code - PSR) Xoserve are engaging with individual participants to ensure that the testing process is clear and to answer any queries There are 3 Shippers, 3 GTs and 3 igt s participating in the testing of this change There needs to be an agreement on the delivery mechanism for the Commercial Supplier Report Secondary Scope (SS) Update The build is complete for XRN4316, System and Acceptance testing phases have been merged and are in progress XRN4249 Address Management The data migration plan was reviewed and supported in the DSG meeting on the 23 rd April Link ChMC to consider approval on the 09 th May There is a risk to the completion of User Acceptance Testing on 18 th May for 2 CRs, XRN4316 plan has been assessed and is expected to complete by 14 th May Due to the risk on XRN4316 exiting UAT, mitigating actions have been defined and it is expected that Performance Testing will be completed by the milestone date of 18 th May Cost Project delivery costs are tracking to approved budgets Resources Weekly monitoring of SME resources supporting multiple demands (e.g. BAU defects, Future Releases, etc) and all requirements are able to be met

UK Link Release 2 - Plan Primary Scope Scoping Initiation Delivery Realisation Stage Scope Prioritisation Scope Defined Funding Initiation Analysis and HLD Detailed Design Build Acceptance Test Performance Test Regression Test Imp. PIS Baseline Plan 07/06/17 25/07/17 09/08/17 Aug 17 Aug 17 20/11/17 29/01/18 18/05/18 18/05/18 22/06/18 29/06/18 (TBC) 30/07/18 Current Plan 07/06/17 11/10/17 10/01/18 13/12/17 16/01/18 29/01/18 (12/01/18) 16/02/18 18/05/18 18/05/18 22/06/18 29/06/18 (TBC) 08/08/18 Secondary Scope Scoping Initiation Delivery Realisation Stage Scope Prioritisation Scope Defined Funding Initiation Analysis and HLD Detailed Design Build Acceptance Test Performance Test Regression Test Imp. PIS Baseline Plan 07/06/17 25/07/17 07/02/18 NA NA 09/02/18 09/03/18 18/05/18 18/05/18 22/06/18 29/06/18 (TBC) 30/07/18 Current Plan 07/06/17 27/11/17 07/02/18 NA NA 16/02/18 09/03/18 09/03/18 30/03/18 06/04/18 18/05/18 18/05/18 22/06/18 29/06/18 (TBC) 08/08/18 RAG Key Milestones are end dates: Planning/Milestone date to be confirmed Milestone date forecast to be met Milestone date forecast to be at risk Milestone date forecast to be missed Milestone completed

XRN4361 UK Link Release 2 XRN4249 Part B Data Migration Plan

Introduction/Problem Statement Change XRN4249 is part of the scope of changes planned to be implemented as part of UK Link Release 2 on the 29 th June 2018. Following analysis of this change, discussion was held with Customers at both ChMC and DSG. Concerns were raised around the migration of the PAF updates from when the process was suspended in April 2017. These concerns relate to the volume of updates required over the period April 17 through to June 18 that could have a downstream impact to Customer systems and business processes. To minimise the impact of loading all retrospective PAF updates from April 2017, Xoserve are recommending a staggered approach to migrate the data over a number of weekends. This would have checkpoints built into the plan to review the process and agree the volume of updates to be loaded on the next planned date. This approach is expected to reduce the impacts to Customer systems and business processes.

Data Migration Plan No Activity Start Date End Date 1 Part A - Code Deployment as part of R2 Cutover/Implementation 30/06/2018 01/07/2018 2 Load agreed initial 10K volume of records into SAP ISU 07/07/2018 07/07/2018 3 NAC File / Portfolio Files / Daily Delta on the back of the initial 10K address update 08/07/2018 08/07/2018 4 Data Load to SAP BW 09/07/2018 09/07/2018 5 Agreement with Shippers to load safe volume (100k) records 09/07/2018 13/07/2018 5 Load the safe volume (100k) records into SAP ISU 14/07/2018 14/07/2018 6 NAC File / Portfolio Files / Daily Delta on the back of the initial safe volume (100K) address update 15/07/2018 15/07/2018 7 Daily Load to SAP BW 16/07/2018 16/07/2018 8 Agreement with Shippers to load the next set of safe volume records (100k) 16/07/2018 20/07/2018 9 Load the 2 nd set of safe volume (100K) records into SAP ISU 21/07/2018 21/07/2018 10 NAC File / Portfolio Files / Daily Delta on the back of the 2 nd set of safe volume (100K) address update 22/07/2018 22/07/2018 11 Agreement with Shippers to load the remaining updates (approx. 40K) 23/07/2018 27/07/2018 12 GB places the first Regular PAF file received 28/07/2018 28/07/2018 13 Load the remaining updates (approx. 40K) into SAP ISU 28/07/2018 28/07/2018 14 NAC File / Portfolio File / Daily Delta on the back of the remaining (approx. 40K) address updates 29/07/2018 29/07/2018 15 Daily Load to SAP BW 30/07/2018 30/07/2018 16 PO Team to pull the first regular file from GB Mailing shared area 01/08/2018 01/08/2018 17 First regular file load into SAP ISU and BW - 1 st production BAU run 05/08/2018 05/08/2018 18 NAC File / Daily Delta on the back of the first regular PAF file 06/08/2018 06/08/2018

Next Steps Present options to Customers at the Delivery Sub Group on 23 rd April - Link Agree if proposed approach is acceptable to Customers Split XRN4249 into 2 Change Packs, to agree: Implementation of the SAP ISU solution to reinstate the GB Mailing Update file process Agreement of the proposed Data Migration Plan to apply updates from April 17 to June 18 Update the DSC ChMC Implementation Plan to reflect XRN4249 code implementation and Data Migration Plan - Link Seek approval of the proposed Data Migration plan at the ChMC on 09 th May

UKL Future Release 2 Cutover/Implementation

Background At the DSG on 23 rd April, there was a Customer query on the Release 2 Implementation Plan to confirm file exchange and processing

Query Response Based on the analysis conducted, it is recommended that adhoc jobs are triggered for all files where file formats will be changed as part of R2 implementation (CNC,CNF,SFN and ACR) Adhoc processing will be triggered at 23:00 hours on 29 th June 2018 to cover all pending data to be processed for the business day All outbound response files for CNC,CNF,SFN and ACR will be processed and submitted before 23:59 hours on 29 th June 2018 in the old file format CNC,CNF,SFN and ACR inbound files submitted after 23:00 hours on 29 th June 2018 will be held at the Xoserve gateway and will be processed post R2 Go Live as per the agreed implementation plan CNC,CNF,SFN and ACR inbound files submitted after 23:00 hours on 29 th June 2018 are expected to be in the new file format (validation will be completed by AMT and file rejections sent if in the old format for CNC,CNF,SFN and ACR) GT (EDL & EWS) & igt (IDL) Portfolio outbound files will be sent in the old file format for the final time on Saturday morning. The new file formats will be submitted from 01/07/18 (IDL files will contain migrated PSR data for igts, GTs will receive EDL files that do not include migrated PSR data as EQL & EWS files will include this data on the files to be sent on 02/07/18) As part of the lower level implementation plan we will agree a communication plan with \Customers

Option 1 File Formats All impacted File Formats Transition Plan Change ID XRN3477 (UKLP112) XRN4303 (UKLP267) Last inbound in Old File Format (Time = File Processing) Last Outbound in Old File Format (Time = File Processing) NA 29/06/2018 AES 23:00PM 29/06/2018 SFN 23:00PM XRN3283 29/06/2018 ACR 23:00PM XRN4449 (UKLP273) 29/06/2018 CNC 23:00PM CNF 23:00PM 29/06/2018 SFR will be processed after SFN execution at 23:00PM 29/06/2018 ARS will be processed after ACR execution at 23:00PM 29/06/2018 CNR and CFR will be processed after CNC and CNF execution at 23:00PM 30/06/2018 IDL 10:00AM EDL 06:00AM EWS 06:00AM First Inbound in New File Format (Time = File Processing) First outbound processed in New File format (Time = File Processing) NA 02/07/2018 AES 23:30PM 30/06/2018 SFN 20:00PM (Files will be held and processed on 01/07/18) 02/07/2018 ACR 8:00AM 02/07/2018 CNC 18:00PM CNF 11:00AM 01/07/2018 SFR will be processed as usual as there is no file format change 02/07/2018 ARS will be processed as usual as there is no file format change 02/07/2018 CFR 12:15PM CNR 18:00PM Refresh of Portfolio Files (EQL & EWS) 17:00PM 01/07/18 IDL 10:00AM EDL 06:00AM EWS 06:00AM Note: This table aligns to Option 1 and based on the chosen option this may have to be revisited. Full details will be defined in the lower level cutover/implementation plan

Appendix 1 - Xoserve High Level Cutover/Imp Plan

Release 3 Update

XRN4572 UK Link Release 3 9 th May 2018 Overall Project RAG Status Plan/Time Risks and Issues Cost Resources RAG Status A A G G Objective Status Explanation Full project delivery of UK Link Future Release 3 Scope BER for Full Delivery of scope and cost was submitted and approved at April Change Management Meeting Detailed Design commenced as planned on 5 th March 2018, due to conclude 2 nd week of May which is slightly behind plan. This does not impact the start to Build phase. A Plan/Time Cadent & NG design overview sessions are in progress and expected to continue for the first 2 weeks to ensure all requirements for XRN 4454 are successfully catered for within Design. 14 Change Packs have been published for Release 3 scope. Approval to be sought at additional Change Management Committee Meeting arranged for 2 nd May. Risks and Issues High Level Design playback was presented to DSG in April. Engagement to be undertaken on Market Trials & Implementation approach with DSG over the next 8 weeks to define the Approach and timelines. R3 Delivery plan has a degree of parallelism. Risk is being closely monitored, slight delay to completion of Design phase however Build can commence as planned and slippage can be recovered NG and Cadent requirements finalisation and sign off required to complete XRN 4452 this is underway. Notional Go Live Date dependent on close management of parallelism in plan and other elements i.e. Market Trials approach Cost Full Delivery costs approved at ChMC in April and forecasts are currently within budget. Resources Weekly monitoring of SME resources supporting multiple demands Currently we have SMEs booked to support all Detailed Design discussions.

UK Link Release 3 - Plan Primary Scope Scoping Initiation Delivery Realisation Stage Scope Prioritisation Scope Defined Funding Initiation Analysis and HLD Detailed Design Build Acceptance Test Performance Test Market Trials Regression Test Imp. PIS Baseline Plan Current Plan 10/01/18 07/02/18 11/04/18 13/04/18 13/04/18 27/04/18 08/06/18 24/08/18 31/08/18 12/10/18 28/09/18 05/11/18 06/01/18 10/01/8 07/02/18 11/04/18 13/12/17 13/04/18 02/05/18* 08/06/18 24/08/18 31/08/18 12/10/18 28/09/18 05/11/18 06/01/18 RAG Key Milestones are end dates: Planning/Milestone date to be confirmed Milestone date forecast to be met Milestone date forecast to be at risk Milestone date forecast to be missed Milestone completed *including CP signoff

Release 3 Engagement Plan Release 3 Engagement Plan 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Mar 2018 Apr 2018 May 2018 June 2018 Jul 2018 Aug 2018 Sep 2018 Oct 2018 Nov 2018 Dec 2018 5 12 19 26 2 9 16 23 30 7 14 21 28 4 11 18 25 2 9 16 23 30 6 13 20 27 3 10 17 24 1 8 15 22 29 5 12 19 26 3 10 17 24 31 Detailed Design Build System Testing Perf. Testing GO LIVE CTGY Go Live 1 Implementation Engagement Implementation Planning Acceptance Testing Regression Testing IDR Prep (2 weeks) I D R C T G Y Post Implementation Support 2 MT Engagement MT Approach MT Planning Test Scenarios MT Prep (5 weeks) Market Trials (5 weeks) 3 Training Engagement Training Approach Training plan Training execution

New Changes for Prioritisation Ratification

XRN4658 Read validation increasing outer tolerance value for specific AQ bands for Class 3 & 4 Meter Points

Actions

Open Actions Title Meeting Date Action Owner Status Update 0209 19/02/2018 XRN4449 - PSR - Xoserve to issue the final version of PSR mapping rules via the uklink@xoserve.com box account. Xoserve Open Require confirmation from Tahera regarding the latest mapping rules. 0402 09/04/2018 Xoserve (EL) to provide an update on ASP pennymismatching. Xoserve Open 0405 09/04/2018 Xoserve (LC) to clearly advise timings in the lower level implementation plans. Xoserve Open Now provided in revised R2 Implementation Approach which is on the ChMC Agenda for Approval - Link. The lower level R2 cutover & implementation plan will then be shared with Customers via the DSG 0406 09/04/2018 0407 09/04/2018 Xoserve (RH) to make documentation clear that the number of needs codes are per MPRN and not per file. Xoserve Open Read Validation - Xoserve (LW) to speak with (MD) about training process. (ES) to compile an information document and send out to the industry. Xoserve Open 0413 09/04/2018 Xoserve (RH) to send out a notification about AQs of 1 (XRN3667.A). Will give an update at next DSG. Xoserve Open UPD Address Dataset - Xoserve (DA) to put a formal change pack out and ask people to vote with all 0414 23/04/2018 options and describe the options. Xoserve Open Read Validation Report - Xoserve (ES) to get an ETA 0415 23/04/2018 when the report will be ready Xoserve Open XRN4449/UKLP273 - Xoserve (CF) needs to check on CP for this and confirm who said what. Also needs to look at other options if not via IX. (CF) to talk through 0416 23/04/2018 these options with (TC). Xoserve Open 0417 23/04/2018 Xoserve (PD) to upload the 8 CRs for R3 changes. Xoserve Open Documentation Changes Feb 2019 - Xoserve (LW) to take on board British Gas comments regarding the documentation release needs to be for everyone not 0418 23/04/218 just Xoserve. Xoserve Open Increase in AQs of 1 and understated AQs. Group to go away and think about options presented at DSG on 0419 23/04/2018 23/04 DSG Open 04/05 - We would like clarification from DSG with the requirements 04/05 am update will be given to the industry on 09/05 following DSGs recommendation and a CP can be issued on 11/05 This will be included within the next formal change pack. This relates to the Supplier Report and Tahera has clarified some aspects that we are working up in the File Format.

AOB

AQs of 1

Negative Consumption within the AQ Calculation

Overview Negative Consumption is generated when a Shipper submits a subsequent Actual read that is less than the last Xoserve Estimated read on UK Link (without a TTZ count). This occurs in UK Link when Xoserve provides Estimated Readings in the following scenarios: Change of Shipper event Class change LDZ / exit zone change A new fail to calculate reason was introduced where an AQ calculation was not calculated owing to negative consumption. This was applied to negative consumption's created from legacy meter readings where read validations were less stringent.

Overview Negative consumption generated post 01 st June 2017 is considered valid with the introduction of more stringent Meter Read validations Negative Consumption is included within AQ Calculations Reads can be replaced by the User registered on the date of the Meter Reading. With the exceptions of: Readings connected to RGMA updates Actual Reads on Class 1 and Class 2 SMPs

Increase in AQs of 1 / Understated AQs There has been an increase in the number of AQs of 1 and understated AQs as a result of a lower actual meter reading being submitted following an Xoserve estimated reading This has occurred where the transfer reading is the AQ closing reading, and therefore not taken into account with the AQ calculation. The next meter reading, which is an actual, is the AQ opening read. Only the negative consumption is considered within the AQ calculation Analysis shows the maximum impact is less than 0.03% of total NDM AQ, therefore this is not considered a high material impact

Options for DSG discussion 1. Shipper Action Replace the Xoserve estimated reading and submit a subsequent meter reading which will trigger a new rolling AQ calculation. The AQ will be a correct reflection of the gas being consumed on the SMP. These meter readings can be submitted at the same time. Considerations If this action is completed the SMP will have a reflective AQ There are no impacts to UNC rules/calculations with this solution This retains the original requirement from Nexus that all reconcilable reads should be used for AQ calculation Any UIG implications will be rectified once the readings are taken into account within reconciliation

Options for DSG discussion 2. Apply Fail to Calculate validation for all negative consumption period Extend the code previously introduced whereby negative consumption is excluded from AQ calculations and the prevailing AQ is carried forwards Considerations The prevailing AQ will be in situ until there are 9 months of accurate readings and a new AQ can be calculated, impacts NDM gas nominations, any further estimated transfer reads (should it transfer) will generate poor estimates Less meter points will be subject to regular rolling AQ updates UNC Modification 0638V and 0570 are both implemented which enact the CMA order and the requirements for all Users to submit reads (0638V - monthly where smart and AMR is present and annual read submission with 0570). PAC are monitoring performance and may choose to incentivise Read submission

Other Options for DSG discussion 3. Another AQ correction reason for example- the last calculated AQ is not a reflection of the annual AQ Considerations Would correct the AQ Creates a back stop date however analysis on SMPs impacted do not have a frequent read submission profile. Yes leave in question do DSG have further solution options 4. Option for the system to recalculate the estimated transfer read based on previous read and latest submitted actual Would require further analysis and complete impact assessment

DSG Options Discussion

XRN4576 Class 4 Transfer Reads not visible to Shippers in DES

XRN4525 Transparency of Rolling AQ

XRN3667.A Provision of Formula Year AQ/SOQ to proposing user

Overview XRN3667a raised to look into solutions to allow the proposed Formula Year (FY) AQ/SOQ values to be visible to proposing users 4 solutions discussed at DMG (19 th March 2018) API/Web Service was the favoured solution Proposed API Data Items Meter Point Reference Number LDZ Exit Zone Current Supply Meter Point AQ Current Formula Year AQ Proposed Formula Year AQ Proposed Formula Year SOQ NB: Proposed Formula Year Effective Date will be 01/04/YYYY