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INNOVATION

Innovation Document Library

Welcome to the Innovation Document Library, your central hub for exploring our innovation journey so far. This page brings together our key innovation publications, including annual summary reports, strategy documents, and other supporting materials that capture the challenges we've addressed, the projects we've delivered, and the value we've created. 
Spanning RIIO-1, RIIO-2 and, as we progress, RIIO-3, these documents provide a transparent record of our innovation activities, insights, and achievements, while showcasing how innovation supports the delivery of a safe, reliable and net zero-ready energy network for the future. 

Innovation RIIO-3 Strategy Document 2026

We've just published our Innovation Strategy document for RIIO-3

This strategy sets out how we will focus our innovation activity over the next five years. It has been shaped by the priorities of our business, the needs of our stakeholders and the changing external landscape in which we operate. 

Our refreshed innovation themes: Energy Security & Network Resilience, Low-Carbon Transition, Safety & Integrity, Digital & Data, and Customer & Business provide a clear structure for where we will direct our effort, investment and collaboration.

Throughout RIIO-3, we will continue to place great emphasis on value, evidence and implementation.

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Innovation in RIIO-2

Over the course of RIIO-2, we used our innovation funding to develop a project portfolio that tested new technologies, generated evidence and explored the role of hydrogen and carbon dioxide in the future energy system.  

To showcase this, we’ve published a RIIO-2 summary document and combined it with our 2025/26 Annual Summary, to share some of our key achievements over the past five years.  

The document provides an insight to the collaboration and learning that have helped shape our innovation portfolio and provides an overview of the progress made during 2025/26 as we closed out RIIO-2 and transitioned into RIIO-3.  

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Innovation RIIO-2 Annual Summaries

Front cover image of 2025/26 annual summary

RIIO-2 and 2025/26 Annual Summary

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Front cover image of 2024/25 annual summary

2024/25 Annual Summary

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Front cover image of 2023/24 annual summary

2023/24 Annual Summary

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Front cover image of 2022/23 annual summary

2022/23 Annual Summary

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Front cover image of 2021/22 annual summary

2021/22 Annual Summary

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Innovation Strategy Documents

Front cover image of 2026 strategy

Innovation Strategy 2026

We've just published our Innovation Strategy document for RIIO-3 - find out how we will focus our innovation activity over the next five years.

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Front cover image of Gas Networks Strategy

Gas Networks Strategy

Developed in collaboration with the Gas Distribution Networks - find out how we’ll work together to deliver a fair and low-carbon gas future as we move into RIIO-3.

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Front cover image of 2025 Strategy

Innovation Strategy 2025

Find out more about the innovation portfolio and focus areas for the last year of RIIO-2.

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RIIO-1 Innovation Documents

Our Stories

Hydrogen production technology innovation project uses advanced 3D

Hydrogen production technology innovation project uses advanced 3D scanning technology for first time

We’re running a project investigating the use of hydrogen production technologies to create hydrogen from methane and use this as a cleaner fuel gas on site.

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Common Planning Pathway

Common Planning Pathway

We're running a project exploring pathways to Net Zero across the whole energy system, including electricity, natural gas and hydrogen.

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HyNTS Compression

HyNTS Compression

To meet our net zero targets by 2050, we’re exploring the feasibility of converting the NTS to carry hydrogen.

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H2 Fuel Gas

Hydrogen fuel gas for NTS compressors

We started a project in September 2021 looking at the opportunity for fuelling our existing gas turbines with hydrogen blends and 100% hydrogen, including the impacts on safety, environmental, technical, operational, and economic factors.

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Precision thermography for hydrogen pipeline inspection

Precision thermography for hydrogen pipeline inspection

We’re running a project exploring the opportunities of using thermographic technologies as a pipeline inspection technique.

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We’re working to reduce emissions across our network

We’re working to reduce emissions across our network

We’ve been looking at ways to potentially reduce the emissions from our compressor equipment, using innovative solutions that can capture gas releases for re-use across the network.

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HyNTS Deblending

HyNTS Deblending

Through the Strategic Innovation Fund (SIF) process, we have been looking at the concept of gas separation or ‘deblending’ of the gases within the high-pressure National Transmission System (NTS) to enable delivery for transport applications.

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Fire and gas detection and suppression

Fire and gas detection and suppression

We’re running a project looking at the potential alternatives for fire and gas detection and suppression systems for both 100% hydrogen and hydrogen blends.

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NTS materials testing to enable hydrogen injection in high-pressure pipelines

NTS materials testing to enable hydrogen injection in high-pressure pipelines

We’re running this project to evaluate the pipe grades that have been used to construct the NTS, to see how they perform with high-pressure hydrogen.

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HyNTS Protection

HyNTS Protection

Through the Strategic Innovation Fund (SIF) process, we’re exploring different technologies that will support a hydrogen transition by halting or reducing the rate of hydrogen permeation into gas assets.

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Multifunctional graphene coatings for pipeline protection

Multifunctional graphene coatings for pipeline protection

We’re running a project looking at whether we can use graphene as a protective barrier within pipelines to reduce the risk of embrittlement or as an additive to improve the performance of the paints used to protect the external surfaces from corrosion.

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Hydrogen impact

Hydrogen impact on cathodic protection and degradation of coatings

We’ve been running a project researching the impact that hydrogen blends may have on protective coating adhesion and Cathodic Protection performance.

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HyNTS Pipeline Dataset

HyNTS Pipeline Dataset

Through the Strategic Innovation Fund (SIF) process, we’re exploring the opportunities to improve pipeline assessment and the available data, to help accelerate the adoption of hydrogen as a net zero energy source.

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Collaborative Visual Data Twin Phase One

Collaborative Visual Data Twin Phase One

The introduction of hydrogen into our network adds complexity which could be managed and supported by digital tools.

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Dynamic risk-based patrolling

As we transition our network to carry hydrogen, we require our network patrolling activities to be more dynamic, so in November 2022, we started a project looking at which advanced analytics tools can be used to optimise the process.

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New pipeline AI route planning

New pipeline AI route planning

In June 2022, we started a project looking at the ways that an AI based tool or platform could be used to enable rapid exploration of potential pipeline routing options.

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Hydrogen deblending feasibility phase two

Hydrogen deblending feasibility phase two

Our hydrogen deblending feasibility phase one project was undertaken looking at the feasibility of gas separation or deblending technology.

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Hydrogen skills and competencies

Hydrogen skills and competencies

We’re running a project to develop methodologies for both skills training and hydrogen competencies for the UK gas industry.

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Identification of NTS opportunities in the transport sector

Identification of NTS opportunities in the transport sector

Hydrogen is expected to be used directly in combustion engines, fuel cells and in the creation of sustainable aviation fuel.

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Technical and commercial impact of high-pressure carbon transportation

Technical and commercial impact of high-pressure carbon transportation

We’re running a project looking at the opportunity of using the gas network to provide transportation for carbon.

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Impact of hydrogen and hydrogen blends on linepack

Impact of hydrogen and hydrogen blends on linepack

We're investigating the impact that 100% hydrogen and blends of hydrogen will have on linepack in the NTS.

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Multiple Gas Detection

We're running a project to identify and test gas sensor technologies capable of detecting varying blends of natural gas and hydrogen.

We're running a project to identify and test gas sensor technologies capable of detecting varying blends of natural gas and hydrogen.

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Variable gas blend measurement system development

Variable gas blend measurement system development

We’re running a desktop study to assess the capability of our existing gas measurement assets when exposed to different hydrogen scenarios.

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Safe venting and recompression of hydrogen

Safe venting and recompression of hydrogen

We’re exploring the use of venting and recompression systems to capture gas emissions, for injection back into the network.

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