Projects
PE Service Pipe Disconnection
The PE Service Pipe disconnection development project aims to produce a product and technique which can safely successfully and efficiently disconnect PE Service Pipes from an external Emergency Control Valve (ECV) following meter removal. This solution aims to prevent the inconvenience risks and additional costs associated with traditional excavation methods.
Suitability of 17-4 PH Stainless Steel Gas Components
The transition from natural gas to hydrogen introduces new material challenges within the context of the GB gas network. One critical concern is hydrogen embrittlement particularly in 17-4 Precipitation Hardened (PH) Stainless Steel commonly used in axial flow regulators and other key gas network components like valve stems. Hydrogen embrittlement can significantly reduce ductility fatigue life and fracture toughness potentially leading to component failure. While research exists much of it focuses on extreme conditions (e.g. high pressures and rapid temperature cycling) that do not reflect typical operational environments in the GB gas network.
This project will look to combine industry knowledge literature review and empirical testing to address these outstanding challenges.
Digital Inclusion in Rural & Vulnerable Communities Phase 1
Digital exclusion remains a significant and persistent challenge across the UK with approximately 10 million people unable to access online services due to a lack of internet connectivity digital skills or confidence. In rural and remote communities this challenge is compounded by poor infrastructure and geographic isolation. For households already identified as vulnerable the inability to receive timely communications from energy networks can have serious consequences.
Energy networks currently rely on a standard set of channels to communicate critical information such as planned outages safety alerts and emergency notifications. Letters go unread door-knocking is costly and slow SMS messages are widely distrusted and digital channels by definition exclude the very households that need the most support. No single channel reliably reaches digitally excluded consumers at speed. This gap represents both a safeguarding risk for customers and a significant compliance and reputational challenge for networks operating under Ofgem’s consumer vulnerability obligations.
This project proposes a fundamentally new approach: the Message Beacon is a low-cost physical internet-free device distributed to households to alert customers that an important energy network message is available to be read. The notification signal is received via Bluetooth or NFC from a nearby mobile asset (such as a van field engineer or bin lorry) and is represented on the Message Beacon using a flashing LED. The customer taps the Message Beacon with an NFC-enabled smart device to display the energy network message. No internet connection is required in the home and no digital literacy is assumed. The Message Beacon brings the message to the person rather than expecting the person to come to the channel.
This project aims to design and validate the Message Beacon concept establishing the foundational design user research and hardware groundwork that will enable a full real-world pilot in Phase 2.
Phase 1 will deliver four discrete tangible outputs each meaningful in its own right and each a direct input into the Phase 2 build:
- Front-of-House Initial Design: User journey maps covering how different household types will encounter and use the Beacon; initial design of the physical form factor LED notification NFC tap-to-read interaction and message display; first-round prototype tested with participants; all design decisions documented with rationale grounded in user research.
- Back-of-House Initial Design: Research with network comms teams on message types triggers and operational workflow; user journey maps for network staff; initial interface designs for message creation household management and read-receipt reporting; analytics framework for Phase 2 evaluation.
- Technical End-to-End Flow: Full system architecture from message creation through transmission to NFC tap and display in the home; hardware and software brief with security model; assessment of NFC BLE and battery architecture; basis for the Phase 2 development brief.
- Prototype Plan and Experimental Builds: Hardware technical diagrams; sourced components; initial experimental Beacon devices demonstrating the core NFC BLE and LED interaction; manufacturing and cost assessment for Phase 2 production run of 30–50 units.
Technology Readiness Level (TRL)
Start TRL: 2 (Technology concept formulated)
The Message Beacon has been identified through prior research as the strongest candidate solution but exists only as a concept. No integrated system design user-tested interface or functioning hardware has been produced.
End TRL: 4 (Technology validated in laboratory environment)
By the end of Phase 1 the core system architecture will have been designed and validated experimental Beacon hardware will have been built and tested and both the front-of-house and back-of-house interfaces will have been prototyped and tested with real users in controlled settings.
GGT- Novel Green Gases
Novel green molecules have the potential to make a significant contribution to the decarbonisation of the UK’s gas network while also reducing system costs. Synthetic and e-methane can play a significant role in meeting future industrial demand as well as decarbonising the power transport and domestic heat sectors. This project investigates novel green gases in more depth to understand how they can be implemented effectively and quickly deployed to decarbonise the gas sector in the UK.
Girth Weld Inspection of Steel Pipelines for Repurposing to Hydrogen Service
Repurposing of natural gas pipelines made of carbon steel for use with hydrogen blends requires a fitness-for-service analysis as part of the hydrogen use safety case. Girth welds of an unknown quality exist in the Local Transmission System (LTS). In hydrogen service these welds would have a greater susceptibility to fracture failure due to material embrittlement caused by interaction of steel material with hydrogen.
Current in-line inspection methods do not routinely inspect girth welds for defects. This project aims to test the available technology for its capability to detect defects and cracks in girth welds. This will provide valuable data for engineering critical assessments required to repurpose natural gas pipelines. It will also inform about the state of art inspection techniques and whether they can be used as a tool for repurposing pipelines.
Bio-LNG Horizon Scanning
This study will assess the current scale and maturity of Bio-LNG production across GB and Europe to understand the market’s readiness for wider deployment. This includes identifying the economic technical and regulatory barriers that could limit progress and evaluating where suitable biomethane is available for liquefaction along with cost benefit analysis.
SGN operate four remote mainland Statutory Independent Undertakings supplied by tankered LNG from the Isle of Grain. The role of Bio-LNG in supporting network resilience and influencing decarbonisation pathways will be examined. Finally the economic viability of different operating models to determine the most effective route for future Bio-LNG development. Ultimately this study will inform a strategic decision on SIU decarbonisation options and inform potential for future Bio-LNG ‘islands’ across GB networks as a means of decarbonising.
Air Ingress in Commercial Installations
This project investigates the risk of air ingress in medium to large commercial gas installations particularly in the context of hydrogen transition. It builds on previous domestic-focused research and aims to understand whether similar risks and mitigation strategies apply to commercial systems. The project includes technical and behavioural assessments experimental testing analytical modelling and the identification of mitigation measures.
GDN Gas Quality Forecasting
This project aims to develop a means of forecasting gas quality at the NTS offtakes which will support current arrangements for target Calorific Value (CV) setting allowing networks to more accurately provide target CVs to biomethane producers and reducing sudden changes in targets sent to biomethane sites which can cause operational problems. Going forward gas quality information on CV and potentially Wobbe will also assist the GDNs in managing hydrogen blend.
Sustainable Vehicle Transport
The Sustainable Vehicle Transport project assessed the feasibility of using biomethane-derived compressed natural gas (bio-CNG) as a lower-carbon transport fuel for operational vehicle fleets while also considering the future potential for hydrogen refuelling infrastructure. The project examined viable locations for a pilot refuelling facility reviewed available refuelling technologies and delivery models assessed vehicle suitability evaluated economic performance and developed a roadmap for potential future deployment.
The study concluded that a bio-CNG trial is technically feasible and can provide substantial greenhouse gas emissions reductions particularly in vehicle segments where electrification remains challenging due to range payload or onboard power requirements. The work also demonstrated that mature refuelling technologies and commercial delivery models already exist in the market reducing technical implementation risk.
A key finding was that project viability is influenced less by technology readiness and more by practical considerations such as fuel demand utilisation rates planning requirements land availability and utility connections. The project therefore provided a structured evidence base to inform future investment decisions and potential progression to site-specific feasibility assessments and detailed business case development.
Exploring the role of biomethane hybrids in the UK
The work will give relevant stakeholders a better understanding of the value of biomethane-powered hybrid heating systems as an important input into the debate over the UK’s future domestic heating landscape and the role biomethane can play in this system. This is a Green Gas Taskforce-related project being led by Cadent.
Reducing Green Gas Costs Through BioCO2 Sequestration
The work will develop a pathway for the biomethane sector to monetise CO2 and identify the role the gas networks can play reducing the long-term cost of gas decarbonisation.
Capacity Heat Mapping
Under current arrangements prospective producers may request shape files for our network which will provide information relating to gas network asset locations but until they submit an enquiry and receive initial analysis results there is no indication of capacity.
This project will produce a mapping platform to show where capacity for network entry is likely to be higher or lower this will allow producers to analyse the best points of the network to connect to based on capacity.
Co2 Capture and Methanation Feasibility Study
The project focuses on exploring practical and innovative pathways for CO₂ utilisation with the goal of supporting scalable and cost-effective carbon management solutions. It examines a range of technologies market mechanisms and regional integration opportunities to better understand how captured CO₂ can be effectively reused. A key emphasis is placed on evaluating the economic feasibility of utilisation particularly through methanation including the potential commercial value of CO₂ and e-methane. The study combines technical and economic analysis with a case study of a methanation plant while also assessing local CO₂ markets and potential sales opportunities. The project also addresses key risks such as technology uncertainty hydrogen pricing and market volatility. Overall it aims to de-risk investment and stimulate the development of the CO₂ utilisation market from the AD sector.
This study assesses the available pathways to recover and monetise the biogenic CO₂ stream produced during biogas upgrading at UK anaerobic digestion (AD) plants with a particular focus on using it to produce synthetic natural gas (SNG). The study begins with extensive stakeholder and technology vendor engagement to identify suitable CO₂ sources potential utilisation pathways market opportunities and technology options.
A central element of the study is the development of a detailed methanation case study based on the capture of approximately 500 Nm³/h of biogenic CO₂ and the conversion of this CO₂ into e-methane using low-carbon hydrogen. Feasibility-level engineering will be completed for both the carbon capture and methanation facilities including process modelling mass and energy balances block flow diagrams preliminary process flow diagrams equipment sizing site layouts and Class 5 capital cost estimates supported by vendor data. These engineering outputs will underpin a detailed economic assessment examining the impact of key variables such as hydrogen cost electricity prices CO₂ value carbon credits and certificate revenues on the levelized cost of e-methane production. The study also includes a local CO₂ market assessment a review of by-product utilisation opportunities such as reaction water and waste heat recovery and the development of a roadmap outlining the steps.
Gas transmission asset resilience through network transitions Discovery
As the energy system transitions away from unabated natural gas and parts of the gas network are either decommissioned or repurposed to support the UK’s net zero goals there is an increased risk of unintentional third-party damage to the network. Any supply interruptions to the transmission network would directly impact security of supply across the country and have a significant cost to customers including power generators industry and domestic users. This project will investigate the benefits of moving from expensive low frequency manual network inspections to innovative AI assisted surveillance technologies in combination with satellite imagery and drones.
Digital Decommissioning of Large-Scale Equipment
As the Gas Transmission network responds to a changing energy system from drivers including the transition to net zero and to changes in supply and demand we are required to decommission our large site based assets in certain locations. Decommissioning is a multifaceted endeavour that goes beyond the conclusion of an asset’s lifespan and encompasses a complex deconstruction process. This project will implement an innovative AI tool to help National Gas manage decommissioning to drive benefits such as increasing the accuracy of cost estimation ways to reduce carbon emissions identify re-use potential and lower the overall time taken to decommission.
Innovation Highways Phase 3
Following on from the success of phase 2 the Innovation Highway phase 3 project will develop Project Synthesis a new AI-enabled capability within the Ideaonomy Highway platform. Project Synthesis will surface compare and synthesise historical innovation-project evidence against current SGN and National Gas innovation problems and challenge statements.
The capability will ingest and normalise project evidence from the Smarter Networks Portal (SNP) and Future Energy Networks (FEN) portal including HTML and PDF sources such as closure reports Project Eligibility Assessments (PEAs) and Annual Progress Reports. It will provide evidence-linked AI summaries showing what has worked what failed what has been learned and what remains unresolved so that learnings and outputs of previous knowledge can be more easily accessible.
This phase will help the energy networks reduce duplication of innovation spend improve the quality and auditability of evidence underpinning new project proposals shorten the time from problem identification to a fundable project and increase confidence under RIIO-GD3 scrutiny.
Energy Plan Translator
Develop a flexible and adaptable toolset for the rapid analysis of Local Area Energy Plans (LAEPs). This will convert qualitative statements to quantified metrics and identify key network specific planning parameters.
Stopple-Live trial (Phase 2)
The Stopple technology is a flow stop tool essential for major projects and emergency works across the LTS and NTS gas network. Its capability was tested in 100% hydrogen within a helinite environment in line with LTS Futures parameters as phase 1. This project focuses on validating flow-stopping technology as an additional deliverable with LTS Futures live hydrogen trial on the Granton to Grangemouth pipeline as a welded tee and hot-tapping operations is already being carried out. The trial will confirm the Stopple train’s effectiveness as a double-block and bleed solution for a 100% hydrogen system which will be available for the UK Gas Network. The findings will provide critical insights into the safe and efficient operation of the hydrogen networks supporting the transition from natural gas to hydrogen.
Innovation Highway Phase 2
The Innovation Highway phase 2 project will utilise AI and machine-learning to optimise the full innovation value chain. The platform will develop a minimum commercial product to help facilitate collaboration amongst networks and other sectors such as water companies so they can innovate together. AI-empowered algorithms will simplify the identification mapping assessment and selection of problems and ideas reducing manual processing time and enhancing effective decision making; this will support identifying and prioritising projects that will deliver the highest benefits. The platform will also help networks automate the development of cost benefit analysis.
EPRG - European Pipeline Research Group 26.27
The European Pipeline Research Group (EPRG) undertakes a wide range of research directed towards the increasing integrity and safety of gas pipelines. Topics such as fit for purpose assessments pipeline rehabilitation & repair techniques and corrosion constitute the major areas of concern for existing pipelines. EPRG projects heavily focus on design and construction of new pipelines through researching materials that allow for increased operational pressures and reduced pipeline thickness while maintaining safety. EPRG are involved with defect assessment and fracture management where the create guidelines to assess the severity and risk of detected defects in pressurised gas pipelines. Conducting full scale material tests to understand crack propagation under cycling loading or harsh environments forms the basis for fracture and fatigue studies. Collaboration on international research programmes through industry bodies such as EPRG is essential to ensure we benefit from leveraged research. Continued participation in EPRG allows National Gas Transmission and Cadent Gas to develop a breadth and depth of knowledge that can only be realised through leveraged research programmes providing maximum cost effectiveness to the customer.