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XRN 5515
Hydeploy close down

Last Updated
13 Sep 2022
Release Type
Implementation Date
18 Jul 2022
Proposer Northern Gas Impacted DSC service area


To be confirmed

Customer Change Team Leader


As part of XRN5014, the effected Supply Meter Points within the HyDeploy2 Live Pilot had an “AQ Backstop” set to retain the integrity of the AQ while the supply meter point was consuming 20% Hydrogen Blend.

HyDeploy2 Live Pilot has now finished, so there is a need for the ‘AQ Backstop’ to be removed, ensured that there has been no detrimental impact on the SMP AQs values, and the balancing/settlement process has been unaffected, as per original project plan.

Discussion are ongoing and confirmation from NGN when the invoicing payments will stop will dictate the delivery date for this change as both would need to be in alignment. 

Confirm that no backend processes are still utilising the HyDeploy2 flag (as flag needs to remain) to treat these MPRN’s differently to a standard MPRN.

This Change is part of XRN 5014 - Facilitating HyDeploy2 Live Pilot

Impacted Customer Types

  • Shipper
  • DNO


Document title Comment Last updated CHMC outcome
Change Proposal Approved 13/06/2022 CP approved at ChMC on 08/06/2022 
Initial Review Stage not required N/A N/A
DSG Discussion N/A 27/06/2022 N/A
High Level Solution Options Stage not required N/A N/A
Solution Review Stage not required N/A N/A
Detailed Design Approved 19/07/2022 Approved at July 2022 ChMC
Evaluation Quotation Reports (EQR) Stage not required N/A N/A
Business Evaluation Reports (BER) Stage not required N/A N/A
Change Completion Report (CCR) Approved 12/09/2022 CCR approved at ChMC 07/09/2022


Initial Review
Change Proposal Raised 25/05/22
Status Awaiting approval at ChMC
Approved to Capture 08/06/22
Status ChMC approved into Capture
Solution Consultation
Stage not required 00/00/00
Status Stage not required
Awaiting Delivery
Change Pack issued, design in consultation - closes 04/07/2022 20/06/22
Status Detailed Design Change Pack approved at ChMC on 13/07/2022
In Delivery
Expected: 00/00/00
Status Awaiting
CCR approved at ChMC 12/09/22 12/09/22
Status ChMC approved the CCR

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