Projects
Project COLLABORATE
Project Collaborate will develop a national digital solution that enables highway authorities and utilities to plan collaborative streetworks proactively. The Alpha phase will deliver a functional prototype that automates the identification and notification of overlapping works enhances data sharing and supports early cross-sector collaboration. By integrating common data standards scalable architecture and stakeholder-driven process design the project will establish the technical and organisational foundations for national rollout. Working with a wide stakeholder group the Alpha phase will demonstrate how digital innovation can embed collaborative streetworks as standard Business as Usual (BaU) practice across the UK’s infrastructure sector.
Project Remo2val
The use of greener gases such as biomethane are an important part of the UK’s transition to net zero. Underground storage sites for biomethane are critical for balancing seasonal supply and demands for energy. However increased levels of oxygen in biomethane can lead to corrosion of assets in wet gas conditions compromising the integrity of storage facilities. This project assesses in a comparative analysis the technical and economic viability of advanced catalytic and adsorption technologies to reduce oxygen levels in biomethane with corrosion inhibitors to ensure the integrity and longevity of critical storage infrastructure.
Project ARAIA
This project will produce reports that will compare the Asset Interventions Database vs their asset base to provide an estimated readiness rating and confidence level against the gas networks assets for the conversion to hydrogen both 100% and blended.
Navigator Project
Situation:
As National Grid ESO transitions to the NESO it will take on the role of Regional Energy Strategic Planners which will bring a focus on the alignment of Local Area Energy Plans and distribution network planning.
Complication:
Current regional distribution network future energy scenarios are produced by electricity distribution networks. Gas distribution networks do not have an equivalent activity Accordingly regional and local area energy planning in not informed by a balanced consideration of all energy vectors.
Solution:
An agile and easy to use Whole Energy Systems Pathway (WESP) tool with detailed temporal and spatial investment planning capabilities to enable a regional whole energy system planning capability which informs gas network planning as well as inform national regional and local planners in an objective evidence based. way
Project Evergreen
This project will develop understanding of how the GB gas network would operate in a system aligned to Future Energy Scenarios (FES) 2025 scenarios for 2050.
Project Capstone
In 2022 a consortium of Urenco EDF the UK Atomic Energy Authority and Bristol University were awarded £7.7m worth of funding from the UK Government Department for Business Energy & Industrial Strategy (BEIS) to develop a hydrogen storage solution HyDUS. This solution could help to alleviate storage across GB. Unlike conventional storage approaches that rely on salt caverns or depleted fields HYDUS uses modular metal hydride technology enabling above ground deployment in geologically constrained areas.
This project will evaluate the feasibility and value of deploying HyDUS a modular above-ground hydrogen storage system as a means of storage across GB. The project will use WWU’s proposed HyLine hydrogen transmission corridor in Wales and South West England as a case study.
Project Volta
This project will undertake testing on technology for distributed production of low carbon hydrogen from natural gas biogas or other short chain hydrocarbons from waste. Which uses 90% less electricity than electrolysis of water and with 68% lower total energy costs.
The project will support early movers and convert gas from our network into a low carbon hydrogen solution. The compact and modular deployment of the technology enables hydrogen production systems to be installed directly at the energy user’s site. These systems convert grid-supplied natural gas to hydrogen on demand eliminating the need for additional infrastructure or on-site hydrogen storage and leaves the rest of the network unaffected
Project GaIN
As the UK attempts to decarbonise residential heat to meet net zero by 2050 electric heat pumps along with heat networks are expected to play a key role. However it is generally accepted that no one technology will be able to meet the needs of all households. If we are to deliver affordable low- carbon heating in the residential sector we shall need as wide a range of technology options as possible to overcome the economic and technical challenges facing every customer.
Project GaIN (Gathering Insights) will explore alternatives to heat pumps and heat networks which can utilise the robust gas network and benefit from its current upgrade programme supporting the aims of DESNZ’s decarbonisation of heat roadmap. The project will discover and assess additional technology options where alternative solutions might be more costly or difficult to deliver; this will include LAEP system benefits as well as localised CAPEX and OPEX costs.
Project CLEAN GREEN
Biomethane is key to decarbonising the UKs gas network. However in comparison to Natural Gas it has a lower energy density and requires enrichment before injection into the gas network. Currently Propane is used a fossil fuel undermining the environmental credentials of biomethane increasing production cost and introducing bituminous elements causing down-time in biomethane plants. Project CLEAN GREEN will identify alternative green enrichment gases to fossil Propane and consider how improved measurement technology can inform network intelligence to optimise Biomethane injection. This will lead to improvements in cost carbon efficiency and injection volumes of Biomethane into the distribution networks.
Hybrid Heating | Project 10
The Cadent Hybrid Heating & Services Beyond the Meter (SBtM) project is a collaborative initiative between Cadent Gas and Guidehouse Europe aiming to trial a more integrated approach to delivering hybrid heating systems for vulnerable and fuel-poor households. The project seeks to bring together current approaches via schemes—such as Cadent’s own Services Beyond the Meter (SBtM) programme the Energy Company Obligation (ECO) and the Social Housing Decarbonisation Fund (SHDF)—into a single customer-focused pathway that combines appliance upgrades insulation heating system installations and tailored advice. Through a phased residential trial the project will coordinate the installation of hybrid heating technologies monitor impacts on customer bills and emissions and gather feedback from both consumers and industry stakeholders. The ultimate goal is to demonstrate the benefits of a joined-up approach to decarbonising home heating inform national policy and support Cadent’s role in achieving low-carbon heating targets while ensuring robust governance risk management and stakeholder engagement throughout the process.
Hydrogen & Carbon Dryness Management
This Network Innovation Allowance (NIA) project investigated dew point management in hydrogen/natural gas blends pure hydrogen and carbon dioxide transmission pipelines. In the National Transmission System (NTS) which is currently a natural gas network the purity of the gas is carefully controlled via the network entry specification. Trace components such as water nitrogen oxides sulphur containing compounds oxygen and carbon dioxide have strict limits on their allowable levels in the network. This is done in part to ensure the gas delivered to end users meets the requirements of the customer but also to protect transport and storage systems. Purity specifications are being developed for hydrogen its blends with natural gas and for carbon dioxide (CO2). This project focused specifically on the water content within these gases in what concentrations it is likely to be acceptable the conditions at which it may condense in the network its interactions with other trace components and contaminants and the potential detrimental effect on the network.
Limiting moisture content and ensuring gas dryness is important for several reasons:
- Safety & Efficiency: Hydrogen’s efficiency as a fuel can be compromised by moisture. Water in hydrogen can affect the combustion process leading to a reduced efficiency for applications like gas turbines.
- Corrosion: If dew points aren’t controlled effectively liquid can drop out of the gas phase and this moisture can cause corrosion in pipelines and hydrogen embrittlement. For CO2 pipelines this moisture can react to produce carbonic acid which can further corrode the pipelines.
The outcomes of the project should provide a clearer insight and strategy on how to effectively manage hydrogen and carbon dryness within the NTS ensuring that the gas remains within the required specifications for current and future demands.
The project was split into three work packages (WP):
WP1 focused on hydrogen and its blends initially reviewing the equations of state (EoS) that model the dew point temperature at varying water content and hydrogen/methane blend ratios. The impact on the network of liquid water formation in hydrogen was examined including the interaction with other trace components such as CO2 and H2S in particular the effect on welds and pipeline defects. Finally a summary of international standards for hydrogen purity highlighted the likely water content limits that could be expected by hydrogen users and thus provided by producers.
WP2 focused on CO2 its phase behaviour and the effect impurities have on this behaviour using the most appropriate equations of state. The detrimental effect of CO2 and liquid water contained within it on pipelines fittings and other parts of the network was reviewed.
WP3 focused on how the water content specifications could be managed on the network from the point of view of monitoring and controlling water dew point in the gases. The water content expected from various production techniques were reviewed and a high-level costing for the dehydration process for both CO2 and hydrogen was made.
Augmented Reality Futures Close
Augmented Reality (AR) technology will be used at Futures Close to convey and inform various audiences including vulnerable consumers about various property archetypes their construction heat loss and the type of retrofit solutions (heating systems controls fabric improvements) available to improve the level of domestic energy efficiency. AR will be used to inform educate and engage audiences on-site at Futures Close as well as off-site at conferences and meetings avoiding the need to facilitate multiple visits on site. Live data feeds will also be visualised illustrating room-by-room temperature humidity as well as other metrics providing an engaging interactive and informative asset for Futures Close.
Network Policies and Procedures – Development Roadmap
UK gas networks are managed and maintained using an extensive suite of policies policies standards and procedures. These documents have been developed gradually over decades of gas network operation however the transition to hydrogen necessitates a wholesale review and update of all existing documents. There is much commonality between the networks’ documents and therefore it would be most efficient to update these documents in a coordinated way to avoid the unnecessary duplication of effort.
1 mol% Oxygen exemption for the NTS
This study builds on previous technical work undertaken to support the 1 mol% oxygen Gas Safety Management Regulations (GSMR) amendment up to 38 barg. The work plan was targeted to focus on aspects that are more pertinent to the National Transmission System (NTS) including information from the current developments for European standards and supporting information from published studies on the impact of oxygen. The scope covered:
- Integrity – focusing on changes to corrosion rates and developing the understanding that increased oxygen content may have on the different factors that impact on corrosion rates.
- Measurement – considering the effect of higher oxygen content on the ability of the different analysers and equipment to measure accurately.
- Gas quality – reviewing the impact on key gas quality parameters and considering the potential impact on trace components that may be present.
- Pipeline “dryness” – investigating the impact of water dew point and water content and the effect of increased oxygen.
- Gas mixing – recognising that the flow from biomethane injection will in most cases be lower than the main pipeline flow deduce if higher oxygen content gas could be transported long distances through the pipeline network.
- Gas storage – building on available information to assess if higher oxygen content impacts on gas storage.
- Gas utilisation – identifying if there are end users that could be significantly impacted by elevated oxygen limits.
- Intermediate limits – considering if an intermediate limit would be preferential.
The scope was developed to provide technical evidence to understand the implications for the NTS recognising that this introduces additional factors that were not considered in the previous studies.
Pre-heating Requirement for Hydrogen Transportation
Scaling Hydrogen with Nuclear Energy (SHyNE)
Significant efforts are required to support the transition of our energy systems moving away from carbon-intensive fuels such as coal diesel petrol and gas towards cleaner sources of power generation such as wind solar nuclear and hydrogen. There is a potential for hydrogen to play a hugely significant role in our energy system the extent of which will be driven by a range of factors including the ability to transport it to where it is needed. There have been recent positive decisions for hydrogen’s potential uses in blending transportation domestic heating and industry. To produce sufficient hydrogen to meet this potential need it will be important to increase and diversify hydrogen production methods.
As nuclear is a reliable and consistent source of clean energy that is unaffected by external factors such as the weather Northern Gas Networks and Wales and West Utilities would like to investigate the possible use of nuclear power as a method of delivering the future increased demand in hydrogen production. This project will explore the opportunity for hydrogen production from nuclear to support a net zero transition across the gas network.
Benefits of nuclear-enabled hydrogen (NEH) in the context of gas distribution networks (GDNs) will be explored building on the established benefits of nuclear energy production.
The overall project outcome is that NGN WWU and other stakeholders are sufficiently informed to determine whether further investment and integration of nuclear-enabled hydrogen to transition plans are justified and how a potential first project could take its next step to deployment through securing technology licences sites off takers and financing.
Alt Pipe
As the owner of the National Transmission System (NTS) National Gas is committed to responsibly managing our redundant assets in a manner that contributes to a sustainable lower-carbon future by decommissioning them responsibly refurbishing for re-use where viable and/or or changing their purpose where possible. This discovery project will identify decommissioned elements of redundant pipework on the transmission system which are unlikely to be used for refurbishment or part of any wider repurposing of the core network and explore the potential of repurposing these for alternative uses including the storage and/or transmission of electrical energy heat fuels water and data.
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.
H100 Barhole Trials for Hydrogen Network Operations
This project will focus on barholing operations conducted after an emergency gas escape within the H100 Fife Distribution Network Operations. The scope will consider H100 scenarios specifically the establishment of a new distribution network to deliver Hydrogen to selected properties in the conversion area. The minimum pressure for the H100 Fife Distribution network is 27 mbar and the maximum pressure is 75 mbar. The aim of this project is to provide further evidence to support SGN operations on the H100 distribution network during emergencies and any future trials or broader rollouts of Hydrogen.
Steer Energy has been identified as a suitable contractor for executing this project due to their extensive expertise in this field and their previous work on the Barhole Trials and ITL Haldane Drill Isolator project. Steer has a proven partnership with SGN and the wider gas industry offering a variety of services including experimental lab testing training and testing facilities.
NextGen Electrolysis – Wastewater to Green Hydrogen Beta
Wales and West Utilities are partnering with HydroStar Welsh Water and NGED to look at two demonstrator projects required from new electrolyser systems and the associated electrolyte that ensures resilience of hydrogen supply across the network giving best value for money and energy security within WWU’s network along with other UK wide Gas Distribution Network (GDN) customers.
Current electrolysers focus on stack-efficiency and hydrogen purity without considering real-world manufacturing and operational constraints and the high costs associated. This project focusses on utilising impurified-water e.g. rainwater storm-overflow and industrial process wastewater as feedstock which reduces operational constraints and costs for customers whilst enabling wide-scale uptake of low-carbon hydrogen.
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