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2009

Hydrogen Blending Implementation Programme Phase 2B

  • Status: Live
  • Reference: NIA2_SGN0104
  • Lead Network: SGN
  • Start Date: 01 February 2026
  • End Date: 01 November 2026
  • Budget: £871,564
  • Funding Mechanism: Network Innovation Allowance
  • Collaborating Networks: Cadent, National Gas Transmission PLC, Northern Gas Networks, SGN, Wales & West Utilities
  • Project Partners: The four GB gas distribution networks – Cadent, NGN, SGN and WWU, and National Gas Transmission are collaborating to deliver the project. The gas transporters have commissioned the services of KPMG to support the delivery of the project. The project will be solely delivered through the Network Innovation Allowance, and no other funding sources will be utilised.

Abstract

Following the successful completion of Blending Implementation Plan (BIP) Phase 1 (Planning) in 2023 and BIP Phase 2A (Design) in 2025, the gas networks have engaged KPMG to proceed with the next phase of the programme, BIP Phase 2B (Delivery).

Running from February 2026 to November 2026, and focusing on Market Frameworks impacts, Phase 2B is required to build on the consensus achieved in Phase 2A and close out all implementation areas that require joint-decision making by the networks. These decisions pertain to detailed design of the application window and industry governance. The outcomes of Phase 2B will create a clear and consistent pathway for individual networks to support the application window and connections process, alongside addressing common areas of industry governance, based on collective decision making to meet timelines of future HAR.

The project offers the gas networks multiple opportunities for new learning, the outputs of which will be shared as per the NIA governance document.

One of the main market framework mechanisms that Phase 2A identified will require modification is the connections process. The gas networks currently offer connection enquiries at any point in time however for hydrogen blending the minded-to position is to transition to an Application Window. This solution will provide learning that will help shape the approaches taken by industry when addressing entry capacity management on 100% hydrogen networks.
file format pdf download NIA2_SGN0104_NIA_Project_Eligibility_Assessment_2026-02-25.pdf
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