National Grid Electricity Transmission NIA Annual Summary 2014-15

National Grid nationalgridElectricity TransmissionAnnual Summary 2014/15NetworkInnovationAllowance Click here to enter

Welcome02 WelcomeWelcome This is the second Annual Summary of National Grid Electricity Transmission’s (NGET) projects under the Network Innovation Allowance (NIA). 2014/15 hasSIntnraotveagtyion been a year of enhanced focus on innovation in Electricity Transmission, with austprdaatetegy number of successful initiatives implemented into our ways of working.Collaboration &dissemination We have further enhanced our innovation our organisational design review forSignificantnew learning capabilities and partnerships, delivering innovation. This will provide enhancedUpdates fromlast year a balanced consumer-value focused clarity of responsibilities and accountabilitiesProjectportfolio portfolio of projects through our Network for selecting, prioritising and deliveringContact us Innovation Allowance (NIA). We have also innovation projects and implementing Our portfolio of innovation projects been successful in securing funding for our successful outcomes into day-to-day covers the full spectrum of our strategic Smart Frequency Control (EFCC) Network business operations. A panel of Directors priorities, with work progressing on Innovation Competition (NIC) project. from all of National Grid’s UK RIIO-regulated opportunities reflecting long-term and business has been established with short-term potential. To leverage the best Innovation can be summed up as the accountability for our UK technology and value for GB consumers we have been act of matching what is needed with what innovation strategy. proactively sharing the knowledge gained is possible, to deliver a better outcome. The energy systems in Great Britain (GB) “ We have done some from our research and innovation activities fantastic work in innovation with other network owners. This has been are undergoing fundamental changes. this year which you can find done through a knowledge sharing forum This, coupled with the changing ways in out more about in the rest of this for the Onshore and Offshore Transmission which consumers use energy, means that document. In further testament Owners and System Operator, the what is needed to maintain safe, reliable Low Carbon Networks and Innovation and affordable energy is rapidly evolving. conference in October 2014 in Aberdeen, At the same time, the pace of technology development is moving the art of what is to our achievements, it is and through regular direct contact between possible at unprecendented rates. pleasing to see a new conductor our engineers and partners in other Reflecting these changes, in 2014/15 technology, tested through networks. we embarked on a review of our strategic a series of our projects, now innovation priorities, focusing on the best being proposed as the opportunities for both the GB System most efficient solution for Operator (GBSO) and the England and Wales ”increasing capacity on part of Transmission Owner (TO) to find ever better the network in Scotland. John Pettigrew ways to meet the needs of electricity users. Executive Director, National Grid During the year, we also completed

Innovation strategy03 sOturartiengnyovationWelcome 7 Safety Reliability Environment key areasSIntnraotveagtyion We continue to invest in the Much of the GB transmission network Our portfolio includes a numberustprdaatetegy Our RIIO innovation strategy development of new products, we benefit from today was built in of projects aimed at minimisingCollaboration & identified seven key strategy areas processes and techniques to the 1950s and 1960s. Although many the environmental impact of ourdissemination for our innovation activities for the protect our staff, contractors and components were originally designed assets and operations as well asSignificant first years of the RIIO T1 period. the general public. Of particular to last 40 to 50 years, our research facilitating the connection of lownew learning Our NIA projects and supporting note has been the continued into the causes of failure and ways carbon sources of electricity. WeUpdates from activities have continued to advance development and successful to prevent it continues to enable us have been continuing to researchlast year state-of-the-art technology and best testing of ground breaking non- to improve the assessment of the and assess ways in which we canProject practice across all of these themes. conductive safety screening true remaining operational life of key make the most of the valuableportfolio suitable for use in our high voltage equipment such as transformers and resources embedded in ourContact us substations. This research will protection systems. It also means assets by exploring efficient ways help mitigate the impact of risk we can develop ways to extend the to re-use or refurbish equipment, management hazard zones on operational life of many network and where this is not possible system operability and increase components without comprising the or cost effective, to recover access for maintenance.  high levels of reliability of the system. materials for recycling.

Innovation strategy04 Our innovation strategy continuedWelcome Connections Commercials SIntnraotveagtyion Timely and affordable system The nature of Great Britain’s Strategic System Operationustprdaatetegy access is a priority for our electricity demand has beenCollaboration & generation and demand customers. evolving rapidly and there are a Our strategic research ensures we As the GBSO we continue todissemination New generation connections are number of ways in which it could are collaborating with a diverse range advance innovation to facilitateSignificant increasingly dominated by non be actively managed to reduce of institutions including universities, smarter system operation,new learning synchronous generation, such as the cost of maintaining security other utilities and industry groups enabling the efficient andUpdates from wind and solar, and are increasingly of supply. We have continued to to investigate next generation coordinated operation of thelast year connected to the distribution progress a number of projects technologies in long-term research. electricity network. BalancingProject networks. This requires a different aimed at making sure demand- We continue to enhance our network the supply and demand forportfolio approach to managing the electricity side services are technically and modelling and supply and demand electricity on a second byContact us system as a whole, so we are commercially viable, through capabilities, investigate how best to second basis efficiently, and working closely with the distribution better understanding and use the emerging technologies such maintaining the stability of the network operators to understand modelling of future demand and as energy storage and support the system, is becoming ever more better and find affordable solutions reliable means of control and development of new materials. complex with around 8GW of to maintain voltage and frequency communication. solar generation across the stability on the network. This will country. Many of our research make sure our networks are capable £ projects are directed at of connecting the volumes of enhancing the sophistication renewable generation the market is of our forecasting models driving and can operate in harmony and exploring novel ways to with active distribution networks. respond ever more rapidly to disturbances to the network.

Innovation strategy05 2p0o1rt4f/o1li5oNoIvAerviewWelcome The evolving nature of the GB energy sector led us to embark on a review Aspects of the of our strategic innovation priorities in 2014/15, and look at the landscape we Transmission NetworkSIntnraotveagtyion operate in as an electricity transmission business.ustprdaatetegyCollaboration & National Grid is in a unique position in having ● how they align with nine challenge-and System Operation Substationsdissemination both the England and Wales Transmission value-driven themes that illustrate theSignificant Owner (TO) and the GB System Operator strategic priorities of NGET. Overhead lines High Voltage Directnew learning (GBSO) business areas. We focused our Current (HVDC)Updates from review on the best opportunities for both the Many of our innovation projects touch onlast year TO and GBSO to find ever better ways to more than one aspect of the transmission Underground cables Safety, Health, EnvironmentProject meet the needs of electricity users and deliver system and more than one of the and Security (SHES)portfolio value to our consumers and stakeholders. value themes: we have grouped ourContact us projects according to their predominant 4% Other 3% We maintain a balanced portfolio of innovation characteristic. activities by looking at our projects in a 6% 32% number of ways. In the coming pages we We invested £10m in progressing 110 23% provide an overview of our 2014/15 activities NIA projects in 2014/15. The diversity showing: of assets and activities at the heart of ● which aspects of the Transmission Network National Grid’s Electricity Transmission or System Operator challenges our projects operations is reflected in the nature of the predominantly relate to; subjects addressed by our portfolio. Our ● a qualitative assessment of the Technology innovation approach allows us to explore a Readiness Level (TRL), which gives an broad range of areas, all of which have the indication of relative maturity of the technology potential to introduce either lower-cost or or solution being investigated; and lower-risk solutions, and often both. 10% 22% For more information about our projects visit the Energy Networks Association Smarter Networks Portal

06 2014/15 NIA portfolio Innovation strategy overview continuedWelcome TRL explained Technology Readiness Level (TRL) is a scale from 1-9 which provides an indication of how closeSIntnraotveagtyion a technology or new operational practice is to becoming technically and commercially viable, and For the purposesustprdaatetegy therefore ready to be adopted as routine in day-to-day business. of the NIA, the TRLCollaboration & levels are defined as:dissemination Our portfolio of projects spans the and operating procedures. “ Our innovationSignificant breadth of the Technology Readiness Compared to last year, our 2-3new learning Levels 2 to 8. This diversity and projects are progressingUpdates from strong mix of projects is a reflection innovation projects are progressing from research into Research: activity undertaken tolast year of our staged approach that drives from research into the development the development and investigate the issue based onProject our business forward through the and demonstration stages for demonstration stages observable facts.portfolio continuous development, trialling and implementation into the business. ”Contact us refinement of new technologies We continue to create new 4-6 research projects. Development: activity focused on •••TRL 2-3 2013/14 2014/15 generating and testing potential TRL 4-6 solutions to overcome the issue. TRL 7-8 £1.2m 7-8 £1.9m Demonstration: activity focused on £2.4m generating and testing solutions on the network that takes them to a £3.3m £5.6m stage where they can be transferred to business as usual. £2.3m 1&9 1 (Blue skies research) and 9 (Fully developed and tested and ready to be deployed) are not eligible for NIA funding.

Innovation strategy07 Transmission Owner (TO) innovation value themesWelcome Our goal is to be an industry leader in innovative technologies, processes andSIntnraotveagtyion solutions for electricity transmission networks. Our approach is built aroundustprdaatetegy consumers, future technological developments and business objectives, and it isCollaboration & focused around four value-driven themes.disseminationSignificant Managing Assets: and developing new service- 2014/15 spend by TO value themenew learning Developing ways to manage based business solutions alignedUpdates from new and ageing assets to customer needs. Benefits are £0.6m n Corporatelast year more effectively. Benefits are maximised through the increase ResponsibilityProject maximised through the reduction in boundary capacity or newportfolio in the ageing rate of the assets. services that customers value. n Efficient BuildContact us Efficient Build: Corporate Responsibility: n Managing Assets Developing ways to build new Doing the right thing, including assets faster and at lower costs. social responsibility, safety n Service Delivery Value is created by delivering the and sustainability, in all new outputs of our capital investment developments. Our stakeholders £2.8m plan for less. place value on us ensuring we meet high standards in this area. £3.2m Service Delivery: Developing stakeholder and customer-focused capabilities through exploiting existing assets £0.2m

Innovation strategy08 GB System Operator (GBSO) innovation value themesWelcome There are many ongoing initiatives around energy supply, as well as a wider political and societal focus on affordability, the continued need for network securitySIntnraotveagtyion and enabling decarbonisation.We actively engage with stakeholders, informing and leading debate around Future Energy Scenarios (FES), the Electricity Tenustprdaatetegy Year Statement (ETYS) and our System Operability Framework, all of which we used to inform our views of how the future could unfold and inform ourCollaboration & innovation programme theme areas. The five value themes identified provide a clearer focus for stakeholders and ensure we meet our RIIO requirements.disseminationSignificant Demand: limitations to find ways to operate for the design and operation of 2014/15 spend by GBSO value themenew learning Electricity demand and the the GB network with higher levels the electricity networks. ThisUpdates from net demand seen from the of non-synchronous generation. theme is intended to identify £0.3m n Smart Gridlast year transmission network is impacted smart solutions to transmissionProject by increasing levels of distributed Distributed Generation: challenges, quantify their value £0.2m £1.1m n Non-Syncportfolio generation. This theme seeks to A larger proportion of new and demonstrate how they can GenerationContact us enhance our ability to forecast generation is being connected be used to provide new services £0.8m and model demand changes and at distribution rather than and increase transmission n Demand to deliver new ways for demand transmission voltage levels. Often, capacity. £0.5m to contribute to the secure the GBSO does not have visibility n Risk and efficient operation of the of this generation or the ability to Risk Management: Management transmission network. affect its operation. This theme As system operation becomes looks to extend our capability to more complex, with increasing n Distributed Operating with Non- model and forecast distributed numbers of generators and more Generation Synchronous Generation: generation, and to develop active distribution networks, With increasing levels of strategies to securely and new risks emerge. As well renewable generation including efficiently operate the network as generation, demand and wind and solar, as well as with very high levels of distributed transmission risks, there are increased HVDC interconnection generation. system information risks and with other networks, there is human error risks as increasing less synchronously connected Smart Grids: quantities of information are generation supporting the GB Given the scope to co-ordinate processed. This theme aims to system. With lower inertia, the and manage many different better understand and manage GB network is more likely to be assets across transmission and these complex risks in our disrupted by unplanned events. distribution networks, Smart evolving role as GBSO. This theme is assessing these Grids can provide new options

Innovation strategy09 NIA in numbers Here’s an During 2014/15, National ExpenditureWelcome overview of Grid Electricity Transmission 70% employees worked more than £SIntnraotveagtyion Electricity more personnel were involvedustprdaatetegy Transmission’s 22,500 compared to last yearCollaboration &dissemination achievements hours on innovation projectsSignificant in the Networknew learning 75%+Updates from Innovationlast year Allowance or £7.7m of theProject NIA was spent onportfolio during external suppliers,Contact us 2014/15. specialists and research 14 new establishments projects started £10m £6.9m was invested of Network Innovation in innovation, a Competition (NIC) funding 50% increase on contribution secured for last year our Electricity Frequency Control Capability We’re working with three 96 active £20m (EFCC) project other network licensees on projects their successful NIC projects of non-NIA funding was leveraged and collaborating on five through larger Low Carbon Network Fund projects in which National Grid was (LCNF) projects a co-funder

Collaboration & dissemination10 tInongoevthaetirng Effective collaboration and excellent supplier relationships remain at the heart of our success in innovation during 2014/15. We recognise that there are significant benefits for consumersWelcome by working in partnership with our peers in the industry, academia and those from otherSIntnraotveagtyion sectors, and we will continue to look for new opportunities in the future.ustprdaatetegyCollaboration & 1Working with the industrydissemination 125Significant Our three licensed networks 2 Listeningnew learning We worked with more than 125 suppliers (Gas Transmission, to othersUpdates from and partners on our portfolio of NIA Gas Distribution andlast year innovation projects, in particular academic Electricity Transmission) Overhead line conductorsProject institutions, other licensed network operators are working with SKM can be noisy and in certainportfolio (LNOs) and a range of specialist technology Enviros to develop a toolkit circumstances this can have aContact us or infrastructure suppliers, many of them to increase re-use of our detrimental effect on the local resources and assets, environment. which we hope will shape the industry’s approach. In Cheshire we have been working closely with the local small and medium sized enterprises (SMEs). community to find a solution to noise problems and are trialling We’re also collaborating with: alternative solutions which are designed to be quieter. The Department of SP Energy Networks, the University of Distribution networks and Meteorology at the Strathclyde and the Energy Technology the ENA to assess what Residents were invited to visit University of Reading the National Grid High Voltage to look at the clustering Partnership to look at how overhead impact increasing levels of Laboratory at the University effects of major offshore line capacity is affected by the renewable generation will of Manchester to help them wind developments. have on the transmission understand the problem and increased use of renewable generation. and distribution networks. potential solutions. Click here to read in depth about this project

Collaboration & dissemination11 Innovating Our collaborative approach extended into the wider together continued industry too,with National Grid employees and teamsWelcome playing a part in a series of events and conferences dedicated to thought leadership in the fields of energy and business.SIntnraotveagtyion 3 Out and about 4 Beyondustprdaatetegy 2014/15 was our first year NIACollaboration & presenting at the Low Carbondissemination Network and Innovation (LCNI) Outside of the NIA/NICSignificant conference held in Aberdeeen. framework, we’re working withnew learning During the event, 23 of our a range of charities and otherUpdates from engineers presented the latest conservation organisations,last year output from their innovation government agencies and landProject projects, shared our learning and owners who have National Gridportfolio discussed future challenges. equipment on their site. The aimContact us is to reduce our impact on the environment through new and innovative ways.  In an industry first, Natural England granted us a corporate bird licence.  We’re developing new partnerships with a range of regional wildlife trusts.  We’re leading the way on Visual Impact Provision. Some of the other events we got involved with included the:  Hubnet  European  iTESLA project Symposium Network of dissemination  Electric Power Transmission event (European Research System Operators transmission Institute (EPRI) for Electricity system operators) We are actively engaging with developers European (ENTSOe)  Eighth UHVnet of energy storage projects to understand Power Delivery Research and (Universities High better how they may benefit the transmission network in the future. and Utilisation Development Voltage Network) Taskforce Committee Colloquium.

Significant new learning12 Click here to “Heat recovery Transformer heat recovery trial read in depth systems have improves thermal efficiency andWelcome about this project been retrofitted environmental performance to super-gridSIntnraotveagtyion transformers National Grid has trialled innovative heat recovery systems in three substations,ustprdaatetegy without the need utilising waste heat, a by-product from electricity transformers, to provide heatCollaboration & ”for outages and hot water to adjacent buildings.disseminationSignificant This non-invasive, sustainable method of Smart radiators have also been installed,new learning harnessing energy reduces substation demand using up to 60% less energy than conventionalUpdates from for low voltage electricity supplies, reduces radiators. The use of fan-assisted heatlast year National Grid’s impact on the environment and exchangers within the unit reduces waterProject supports local communities. content, which in turn increases the overallportfolio performance of the system and heat distribution.Contact us Trial installations at Melksham, Bishops Wood and Cardiff East substations are helping Benefiting the local community National Grid to understand the performance At Bishops Wood the heat recovery system and potential efficiency gains from three different uses a single plant room to provide space variations of heat recovery system in different heating and hot water to the substation offices substation environments. – the first transformer heat recovery system to incorporate a domestic hot water circuit. The In each case, heat recovery systems have system also heats an adjoining environmental been retro-fitted to super-grid transformers education centre, which demonstrates National without the need for outages. Installation work Grid’s potential to provide surplus heat for the started in 2013/14 at Melksham, but the majority benefit of the local community. of the work, plus development and installation at Bishops Wood and Cardiff East, was largely These offices also benefit from high energy, completed in 2014/15. high output radiators, which will provide an alternative unit heater to benchmark against the Pushing the boundaries other two systems. The installation at Melksham, a large site with numerous office buildings, has pushed At Cardiff East substation, monitoring of the technological boundaries by testing the a third installation will test the adaptability of capability of waste heat recovery over long the technology for transformer installations in distances. This project has successfully open air. The systems are being carefully installed a long ground loop to transfer energy monitored and results to date have favourably recovered in water glycol from super-grid proven the concept of transformer heat recovery transformers to a central plant room which and its adaptation to different site and serves two operational buildings. transformer topologies.

13 Click here to read in depth Significant new learning about this projectWelcome Investigation of Aeolian insulator noiseSIntnraotveagtyionustprdaatetegy Although insulators used on the electricity transmission network have a shapeCollaboration & that is designed to minimise noise and undergo rigorous type testing prior todissemination installation, in recent years insulator noise has been a source of complaints fromSignificant affected communities. Most commonly, these noise complaints come from peoplenew learning who live near overhead line routes refurbished with glass insulators.Updates fromlast year Insulators can be made of glass, porcelain found to readily produce audible tonesProject or polymeric materials, but in recent across a wide range of angles and windportfolio years National Grid has preferred to install speeds. The type registration of this designContact us glass insulators because they are readily was subsequently suspended pending recyclable. However, under certain wind further investigation. conditions insulator strings may resonate resulting in an audible tonal noise. As a result, University of Manchester has been supplied with samples of National Grid has worked with University insulators to carry out further investigation of Manchester to determine whether there and fundamental modelling of Aeolian is an inherent design flaw in the insulator mechanisms. The goal is to establish why type that was leading to audible noise under the problematic glass insulator type was certain wind conditions. prone to wind noise and to support future insulator technical specification reviews. Investigations have aimed to develop a type test that will identify and remove ‘noisy’ An improved approach to testing insulators, reducing the potential for this The outputs of this work have fed into a to become an issue for local communities. review of the audible noise requirements in By preventing the initial installation of these National Grid’s technical specifications for insulators on the network, this type test insulators, which are due to be issued later would also limit the need to replace them for in 2015. An improved approach to Aeolian being too noisy. noise testing is included, and will be made available to other transmission owners. In May 2014 National Grid conducted wind tunnel tests on different insulator types National Grid is also planning to install at the Motor Industry Research Association’s monitoring equipment on an overhead large scale wind tunnel. The noise behaviour line route where a range of insulator types of various insulator types was consistent are fitted, to understand their behavior with experience in the field (i.e. that some once deployed in the field. Learning from noise can occur, but over a limited range of the Aeolian Insulator Noise NIA funded conditions). innovation project is being used to inform this work. However, one insulator type that had previously passed type-registration was

Significant new learning14 Rapid deployment ballistic screensWelcome Mitigating against the risk of failure from porcelain-cladSIntnraotveagtyion assets such as current transformers (CTs), circuit breakers andsutprdaatetegy bushings has posed a challenge for the industry in recent years.Collaboration &dissemination To date, the problem has been “to asset defects. Test findings polycarbonate protective surface,Significant addressed predominantly by The screen’s modular design will be used to which could also be exposed tonew learning introducing sizeable risk management could allow entire ballistic walls to be design, build and a shower of electrically vaporisedUpdates from hazard zones at substation sites. assembled quickly. Additionally, the metal during a catastrophic failure,last yearProject Although necessary to keep use of a concrete or water-filled ballast deploy a pilot could withstand the extremely highportfolio personnel safe, this approach has (filled once deployed, to add mass) ballistic screen temperatures of expected moltenContact us posed challenges for substation access, means that the system is lightweight metal particulates for the duration of system maintenance and operation. and transportable. at a National such an event. To overcome these restrictions, This year, carefully-executed National Grid is developing a rapid tests, supported by high-speed ”Grid site Test findings will be used to design, deployment ballistic screen, capable of video footage, have confidently build and deploy a pilot ballistic screen withstanding all fragments of porcelain demonstrated that the screen can Improved safety and at a National Grid site. The location from extremely rare asset failure. withstand the ballistic impacts better substation access will be chosen to provide access to expected from ceramic debris other network operators to maximise Quick and effective of porcelain-clad assets during During destructive tests, the ballistic the understanding and use of the deployment catastrophic failure. In the most screens were moved closer to the CTs technology developed. Key benefits recent trials this was demonstrated of mass production include improved This project aims to deliver an effective, modular and easily-deployed and CT/VTs than safety clearances safety measures, better substation ballistic screen which, if successfully trialled and mass produced, would in a substation would allow. By doing access for maintenance, and a provide alternative mitigation and enable network asset owners to with oil-filled Current Transformers/ this, the system’s ballistic capability reduced impact of hazard zones on respond quickly and effectively was confirmed under conditions that system operability. Voltage Transformers (CT/VTs) that were more severe than the screen had been previously removed from the would be required to withstand. Tests Click here to read in depth transmission network. also demonstrated that the screen’s about this project

Significant new learning15 Audible noise assessment of High Temperature, Low Sag ACCR conductorsWelcome The GB electricity transmission network faces a growing challenge to increase power transfer capability,ISntnraotveagtyion driven in part by the increased diversity of electricity generation sources and demand patterns.ustprdaatetegyCollaboration & High Temperature, Low Sag (HTLS) conductors enable The ACCR conductor also uses a stringingdissemination increased power-carrying capability from existing method common to other widely usedSignificant overhead line routes without strengthening or rebuilding conductors, meaning it can be a “drop-in”new learning associated transmission towers, optimising the use of replacement, benefiting the supply of fittings andUpdates from existing infrastructure. long-term maintenance.last yearProject Operational experience has demonstrated that tested its comparative noise performance via state-of-the- Improved noise performanceportfolio some HTLS conductors show increased corona art audio and visual monitoring equipment. The ACCR solution supports cost effectiveContact us (electrical discharge) in dry weather, and more adverse whole-life network reinforcement for consumers, audible noise in wet weather compared with traditonal The round stranded, ungreased design of the 3M with less adverse environmental noise impact than lower capacity conductors. conductor means that contaminants like dust and pollen, previous solutions. which can cause ‘noisy’ electrical discharge, are less likely National Grid has funded research at University of to stick to the conductor surface. Most significantly, stable Following replacement of three spans with the Manchester, generating new understanding of the water droplets, which can lead to a highly audible wet trial ACCR conductor, improved noise performance complex factors contributing to conductor audible noise weather ‘hum’, are less likely to remain on the conductor was immediately noticeable, with night surveys in behaviour, including the conductor’s grease, strand surface. The ‘wet noise’ behaviour of the ACCR conductor dry weather confirming almost complete absence shape, surface properties and electrical stress patterns is not only more favourable than alternative HTLS of corona. Although the conductor does produce conductors, but also the original conductor it replaces. noise in wet weather, the impact and duration These findings, alongside those of a previous NIA- are reduced and local residents have reported funded innovation project – the trial and performance favourable noise performance during the trial. This assessment of Aluminium Conductor Composite conductor may therefore allow National Grid to achieve Reinforced (ACCR) – identified that 3M’s HTLS conductor increased transmission capacity while minimising local may offer favourable noise performance compared with noise disturbance. other HTLS conductor types. Click here to read in-depth about: Focused noise trials The 3M ACCR HTLS conductor was selected for focused this project noise trials in 2014/15 to confirm its noise performance merits. By installing three spans of the ACCR conductor the ACCR project between towers to replace another HTLS conductor in an area of known overhead line noise, National Grid has Scottish Power’s roll out proposal

16 Enhanced weather Significant new learning modelling for DynamicWelcome Facilitating Enhanced Line Rating (DLR) Network CapacitySIntnraotveagtyion Evaluation (FENCE)ustprdaatetegy Evolving generation and demand patterns areCollaboration & resulting in changing flows on the transmission A second capacity-related projectdissemination network and increasing constraint costs. Building linked to the DLR work has also beenSignificant completed. The FENCE project was anew learning more circuits or increasing circuit capacity is feasibility study to verify the potentialUpdates from both time consuming and costly. One alternative of pursuing an Enhanced Networklast year is to utilise the existing network more effectively Capacity Evaluation (ENCE) system.Project by enhancing the existing asset thermal capabilityportfolio The work focused on a small section ofContact us using Dynamic Line Ratings (DLR). the GB network in South West England. The three aims were to identify the Click here to DLR provides a different means of increasing best technical approach in designing a read in depth capacity based on weather conditions. This demonstrator ENCE system, to develop a about this project is looking at how historic weather set of criteria to maximise the benefit, and project data can be harnessed to forecast the to identify the proportion of constraints that prevailing capacity along an overhead line are thermal, thereby indicating potential route – hours and days ahead of real-time. future savings. When complete, we hope to incorporate The work has verified that suitable this learning into existing techniques to algorithms exist to support the necessary calculate overhead line rating enhancements prediction technologies. Likewise the based on weather forecasts, expanding necessary monitoring equipment is in the timescales when this can be done and place to support most applications. We incorporating DLR into investment and also conducted a comprehensive survey operational planning. of user groups within NGET, covering all planning horizons and confirming that The significant benefit to consumers would the proposed system architecture could be the ability to make operational decisions be readily accommodated, alongside a that reduce the cost of operating the system detailed assessment of technical risks. and potentially avoid or defer reinforcement works following the connection of new low- A more detailed evaluation of the carbon generation. potential savings from avoiding constraints will now be undertaken.

Significant new learning17 BritNed is a HVDC projectWelcome connecting the UK to theSIntnraotveagtyion NetherlandssutprdaatetegyCollaboration & Innovative tools for Click heredissemination electrical system to read inSignificant security within large depth aboutnew learning areas (iTESLA) this projectUpdates fromlast year As more renewable sources of response. The iTESLA project aims European energy market. of improved co-ordination betweenProject energy are connected to Europe’s to develop and validate an open inter- National Grid is one of the partners on TSOs, enabling the correct focus acrossportfolio electricity transmission grid and the operable toolbox – essentially a new set European partners regarding the mostContact us pace of decarbonisation increases, of analytical tools – which can support the the project, which will see the creation critical system states. the system will need to be redesigned future operation of a pan-European grid. of a new suite of software-based tools – and reconfigured so that it can capable of assessing the security of power The island nature of National Grid’s continue to operate efficiently and The concept of iTESLA is underpinned system situations from two days ahead to operations means that we can provide ensure security of supply. by recognition that the analytical tools real-time. The software will also provide a unique perspective on defence and in place today will not necessarily be fit- advice on the relevant preventative or restoration plans, sharing our strategies for This long-term transition will make for-purpose in future due to a number of remedial actions required. supply restoration in case of emergency pan-European transmission networks factors. These include more intermittent operation and blackouts. more complex, with impacts on both and unpredictable sources of renewable A unique perspective normal and emergency operations. generation, new complex controllable In addition, the toolbox will allow From a consumer perspective the devices (particularly HVDC) being Transmission System Operators (TSOs) to true value of the iTESLA project is Maintaining security of supply while introduced, more controllable electricity address network simulations of their own increased security of supply, with Europe’s transmission grid becomes ever demand, the increasing difficulty of building system, of co-ordinated regional systems, partner nations working together to create more interconnected is a challenge that new overhead transmission or the whole pan-European system. a more resilient pan-European network requires a co-ordinated Europe-wide lines and development of the single Giving input from a TSO perspective, and a more co-ordinated response during National Grid is supporting development times when the system is under stress.

Significant new learning18 Control and protection Click here to read in depth challenges in future about this projectWelcome converter-dominated power systemsSIntnraotveagtyionustprdaatetegy The proportion of non-synchronous Control elements Digital Simulator. It is also considering how futureCollaboration & generation (NSG) on the GB network is The control-orientated part of the project employs converters can do much more in terms of faultdissemination increasing as wind and solar generation and a simplified GB power system model to assess ride-through and responding to unbalanced gridSignificant HVDC links are developed. This project system dispatch and investigate controller voltage conditions with novel dual-sequencenew learning explores the impact of high-volume power aspects. This will raise awareness among system control schemes. With regards to grid protection,Updates from electronic converters as the main interfaces operators, owners and generator customers European network code changes are also beinglast year of NSG. It also seeks to resolve National about the nature of a future power grid which has considered.The project has identified the limitationsProject Grid’s challenges in operating a future GB significantly different characteristics. It will raise of existing network protection systems in respectportfolio power system with higher levels of NSG. To awareness of potential constraints on NSG due to of fault detection and speed. It has proposed newContact us do this, we are considering new control and angular instability and other factors. converter control schemes to cater for network protection schemes to help remove barriers fault detection and voltage unbalance corrections and allow us to operate with much higher The work will also propose new HVDC converter levels of converter-interfaced generation. control schemes with fast frequency response. During 2014/15 four conference papers This will help address system-strength issues that have been published and two journal drafts are “This work will reduce are due to lower levels of system inertia brought being prepared. technical constraints about by having less synchronised generation. to facilitate a greater The effect of synthetic inertia on GB power system Technical and commercial benefits percentage of frequency containment is being addressed by From a high level point of view, this project will renewable power quantifying the amount of synthetic inertia and its deliver a range of benefits. The first is to reduce generation in the GB potential impact on operation with higher levels technical constraints on NSG to facilitate a greater power system of NSG. percentage of renewable power generation in the ” GB power system. Secondly, the project will help Protection elements ensure stable operation of the grid with different The protection-orientated element of the project generation mixes through the identification of has established detailed converter models to fit-for-purpose transmission protection functions investigate protection issues. It is testing existing in a low-carbon future. From a commercial relay settings and reactions to various grid faults perspective, the work will help avoid future costs using University of Strathclyde’s Real-Time through constraints on NSG.

19 Managing distributed Significant new learning generation effectsWelcome Click here to read in depth The connection of increasing levels of electronically-connected generation, such about this projectISntnraotveagtyion as wind and solar power, to the GB electricity transmission network is leading toustprdaatetegy a reduction in system inertia. This makes the system more vulnerable to Rate ofCollaboration & Change of Frequency (RoCoF) effects.disseminationSignificant These RoCoF issues have a potentially £250mnew learning significant bearing on the cost of operatingUpdates from Britain’s electricity network. If we do not The potential increaselast year make sure that the system is robust enough in costs by 2018/19 ifProject to cope with lower inertia, we face increases the RoCoF challenge isportfolio in system operating costs of up to £250 not addressedContact us million a year by 2018/19 and further increases thereafter. The research will allow more efficient and reliable operation of the GB system, both These extra costs would be incurred at the transmission and distribution levels. because balancing services would be The key objectives are to reduce operational needed to curtail in-feed losses and costs while enabling increased system synchronise additional generators to provide access for intermittent generation types, inertia. This would in turn displace renewable including renewables. generation such as wind. At present, no comprehensive information More efficient and reliable exists for loss of mains protection for operation distributed generation installations below This research, supported by National Grid 5MW. The first stage of this work is creating as GBSO and the GB Distribution Network a GB view, by DNO area, of such distributed Operators (DNOs), builds on earlier work to generation. The second stage involves assess the behaviour of larger (greater than evaluating the feasibility of using higher 5MW) distributed generation installations RoCoF protection settings for distributed under high RoCoF conditions. generation. It will provide a clearer understanding of smaller (less than 5MW) distributed generation installations that use RoCoF as a loss of mains protection and how these installations would behave in the event of system disturbances.

Updates from last year20 Updates on last year’s highlights Click here to read about last year’sWelcome In last year’s summary, we highlighted several key innovations in the field of electricity transmission which had provided summary National Grid with invaluable insights into how we can do things even better. These projects have continued to makeSIntnraotveagtyion good progress over the last 12 months, and below we summarise what’s been achieved during that period.sutprdaatetegyCollaboration & PROJECT name PROJECT namedisseminationSignificant Cable Extraction 400kV Synthetic Ester Fillednew learning Transformer Pilot ProjectUpdates from PROJECT DETAILSlast year Decommissioning of underground PROJECT DETAILSProject oil-filled transmission cables currently In 2013/14, National Grid worked with two partners to complete an NIAportfolio requires continued maintenance to project to build and test a synthetic ester (MIDEL 7131) filled transformerContact us prevent contained cable oil from leaking test rig. MIDEL 7131 is a reduced fire hazard liquid alternative to mineral oil into the surrounding environment which has the potential to assist compact transformer design. Last year, National Grid outlined RESULTS AND LEARNING development of an efficient ‘no dig’ cable extraction solution enabling Successful lightning impulse testing at 400kV was carried out in line with valuable materials to be recycled and avoiding costs associated with National Grid and IEC specifications. This provided the confidence to monitoring redundant cable assets. The project aims to extract cables from commission the design and build of a 240MVA 400/132kV synthetic ester- the ground at low cost and with minimal disruption to the local environment. filled transformer. In February 2014 a competitively-tendered contract was awarded to Siemens to supply three such transformers filled with MIDEL The method uses a unique collet gripper system alongside novel 7131, for a new-build substation at Highbury in London. In March 2015, application of directional drilling. This loosens back-fill material around the National Grid engineers, working closely with Siemens, witnessed the cable at selected extraction points and pulls the cable out, allowing the successful test of a commercially-offered 400kV, MIDEL 7131 filled, heat- void to be filled or replaced with a duct for future use. recovered transformer. RESULTS AND LEARNING BENEFITS TO CONSUMERS This technique has been trialled in conjunction with existing transmission Although modern transformers are less prone to fires than works at Kingsnorth and Ross-on-Wye, with an 80% extraction success ever, incidents are possible. Consequently, high-voltage rate on two different back-fill materials. A third trial is planned in 2015 on transformers have been located more than a specific a decommissioned cable at High Marnham, with a different back-fill, for distance from occupied premises. Following successful which alternative cost effective extraction methods will be considered. testing though, MIDEL 7131’s high-fire point means it is now possible to place high voltage transformers in closer BENEFITS TO CONSUMERS confines in urban areas, reducing occupation of useful Upon successful completion of these trials, we will assess the extent to space. The transformers also feature a heat recovery which these techniques can be applied to National Grid’s existing 50km system and in Highbury, more than 1MW of waste heat of decommissioned buried cables. We will also consider their applicability will be recovered and used to heat a neighbouring school. to the 270km (at time of writing) of transmission cable anticipated to decommission in the next six years. Click here to read about this project Click here to read about this project

21 Updates from last yearWelcome Updates on last year’s highlightsSIntnraotveagtyion PROJECT name PROJECT nameustprdaatetegyCollaboration & T-Pylon Structure and Trial and performancedissemination Composite Testing assessment of ACCRSignificantnew learning PROJECT DETAILS PROJECT DETAILSUpdates from Last year, significant learning was gathered in the development of the As a High-Temperature, Low-Sag (HTLS) overhead line conductor, Aluminiumlast year T-Pylon. NIA-funded work on the project relates to the certified mechanical Conductor Composite Reinforced (ACCR) allows conventional conductors toProject testing of the T-Pylon structures to validate structural design and be replaced with a conductor of similar size, but higher thermal rating, so thatportfolio manufacturing processes, as well as mechanical and electrical testing of more power can be transported down an existing overhead line route withoutContact us new composite diamond-shaped insulators. rebuilding or replacing infrastructure. National Grid undertook installation trials of 3M’s HTLS conductor at their OHL Training Centre at Eakring. This was RESULTS AND LEARNING followed by a live test on a 15km energised section of the network between High Construction of the first five T-Pylon spans was completed in May 2015 at Marnham and West Burton. To evaluate noise reduction benefits an additional the National Grid Eakring facility. Certified mechanical testing is expected to three spans of ACCR have been installed on both circuits of the Deeside – be completed in September 2015, as all test structures have been delivered Daines route (see page 15 for specific ACCR noise trials). to the Abiensa test facility in Spain for the first two test phases. Working insulator solutions have been developed by three suppliers and successfully RESULTS AND LEARNING mechanically tested to mitigate supply challenges. A tension solution has been The trials’ success means that National Grid is actively seeking deployment tested and type registered. During 2015/16 further mechanical load testing will opportunities on the transmission network. The ACCR conductor will be be carried out on the insulators due to their orientation, which have previously considered where increased power carrying capability is required from existing only been installed in a vertical position on substations. infrastructure together with reduced noise impact, as this solution can offer favourable noise performance over previously trialled HTLS conductors. An BENEFITS TO CONSUMERS example of deployment is the Sellindge to Dungeness 400kV reconductoring The T-Pylon’s innovative design is up to scheme, where the ACCR conductor is being considered for a number of one third lower than the conventional overhead line spans close to a noise sensitive area, and SPT is also proposing steel lattice pylon and aims to reduce to use it on their network. visual impact at a lower cost than buried cable. Successful completion of BENEFITS TO CONSUMERS mechanical load tests will assure long- The ACCR HTLS conductor is being considered by National Grid alongside term reliability and assist development of other capacity reinforcement solutions for consumers. This is due to its a deployable T-pylon solution that can be ability to increase ratings and minimise transmission structure reinforcement considered alongside these investment requirements, but with less adverse audible noise impact than previous HTLS options. Completion of composite solutions. insulator testing will also ensure sufficient availability of approved supplier options In a further NIA project (Evaluation of a Novel Variant of ACCC HTLS to deliver a deployable insulator solution. conductor), National Grid plans to trial the mechanical properties of another HTLS variant, with the objective of introducing UK market competition in HTLS Click here to read about this project conductors. Click here to read about this project

22 Updates from last yearWelcome Updates on last year’s highlightsISntnraotveagtyion PROJECT name PROJECT nameustprdaatetegyCollaboration & Clustering effects of major A combineddissemination offshore wind developments approach to windSignificant profile predictionnew learning PROJECT DETAILSUpdates from As new wind farms are built across Great Britain, the geographical PROJECT DETAILSlast year distribution will change. Many of the new wind farms will be in large Many current wind farms are in complex terrain such as mountainous regionsProject clusters located offshore. The concern that this project addresses is in Scotland or offshore locations near the coast. This means that the forecastportfolio whether the wakes from neighbouring wind farms will interact and make value of wind speed can be quite different to the actual value of wind speed atContact us the output of these new wind farms less predictable. This project uses particular points in time. advanced weather modelling techniques to forecast the creation and behaviour of these wakes and also their interactions with other wind farms. The project we are undertaking with University of Sheffield looks at the fundamental mathematics of the Computational Fluid Dynamics and combines RESULTS AND LEARNING this with techniques from the signal processing body of knowledge. The aim Recent simulations indicate that wind farm wakes can is to create algorithms that will be accurate and computationally-efficient and be established up to 20km downwind of the wind farm therefore help to reduce wind power forecast error. for particular atmospheric conditions. The next stage of the project is to compare RESULTS AND LEARNING these simulations with real data from the The work so far has revealed some errors in the fundamental mathematics output of the wind farms. This will help to build of the quaternion-valued gradient operator. This has now been correctly confidence in the simulation and is an important step formulated and published in a paper by the team. Confidence in the approach towards making use of the more detailed analysis in the of combining Computational Fluid Dynamics with signal processing has been Electricity Control Room for operational decisions. gained. This approach has not been tried by any other research institution. BENEFITS TO consumers BENEFITS TO consumers Work done on this project is part of a portfolio of The hope for this work is that the algorithms will not only be a breakthrough effort to minimise wind power forecast errors and thus in forecasting accuracy but will allow the methodology to be inverted. Doing save the industry and the consumer money. The work this will provide a way of mathematically deriving the optimal positions of builds on expertise that is already present at University of wind turbines for planned wind farms to maximise energy capture for all wind Reading in Energy Meteorology and Advanced Weather conditions. This will be of benefit to the entire wind energy sector as well as Forecasting Science. National Grid. Click here to read about this project Click here to read about this project

23 Updates from last yearWelcome Updates on last year’s highlightsSIntnraotveagtyion PROJECT name PROJECT nameustprdaatetegyCollaboration & Reactive Power Exchange Advanced network control anddissemination Application Capability demand response technologiesSignificant Transfer (REACT)new learning PROJECT DETAILSUpdates from PROJECT DETAILS Lower system strength and higher levels of non-synchronous generationlast year Managing voltage levels on the grid during are posing new challenges for the GB electricity network. This project hasProject minimum demand periods is problematic. The looked at innovative ways to make the transmission system smarter in future.portfolio root cause is the significant decline in reactiveContact us power (Q) relative to active power (P). The RESULTS AND LEARNING REACT project was launched with University The advanced network control project has been run in partnership with of Manchester to understand how voltages Imperial College and was split into three specific areas of research: can be kept within statutory limits and to advanced control system strategies, system resilience through the use of analyse the issues around voltage control. more complex control schemes, and demand management technology implementations. RESULTS AND LEARNING The first stage of work in year one was network focused replication and Effective network control technologies have been identified and understanding of the Q/P decline, and establishing an appropriate modelling evaluated through the work. Further work being implemented as part of the program. Year two has focused on load change and a third year of research Enhanced Frequency Control Capability NIC project will build on this. has been proposed looking at specific operational, specification and investment measures to address the Q/P decline. BENEFITS TO ConsuMERS The work will benefit transmission systems users and consumers by In stage one of the project, the team has successfully related effects within helping to reduce carbon emissions and system operational costs through distribution systems to the impact at the transmission interface. In doing delivering improved overall system operability. so, the project has identified that data being used to plan the distribution system has been understating the reactive power being generated by Click here to read about this project those networks by around 15-20%, either because of a high proportion of undergrounding or underlying inaccuracies in the original modelling. BENEFITS TO ConsuMERS REACT has illustrated how reactive power is transferred to the transmission interface and the benefit of balancing reactive power within the distribution systems rather than at the interface. This is changing the appreciation of the factors behind Q/P decline, and alongside further analysis, is expected to improve future Q/P ratio forecasting. Click here to read about this project

Project portfolio24 Project portfolio For further information on our full project portfolio and to see our project progress reports for the projects listed below, pleaseWelcome click on the icon or visit the Energy Networks Association Smarter Networks Portal at: www.smarternetworks.orgSIntnraotveagtyionsutprdaatetegy Corporate Responsibility Click here to read about this projectCollaboration &dissemination NGET Project Name 13/14 Strategy PARTNERSignificantnew learning NIA_NGET0107 Stakeholder Attitudes to Electricity Infrastruture Overhead lines University Of ExeterUpdates from NIA_NGET0113 Control of Debris and Dust From The Treatment of Grade 4 Steel Work (G4T) Overhead lines CLC Contractorslast year Fountains EnvironmentalProject NIA_NGET0112 Enhanced ACDC Safety Voltage Limits SHES Pdc Protective & Decorativeportfolio NIA_NGET0124 EPRI EMF SHES Spencer CoatingsContact us NIA_NGET0141 T-Pylon Structure and Composite Testing Overhead lines Cardiff University Epri Solutions NIA_NGET0137 Noise Assessment of ACCR Conductor Overhead lines Allied Insulators Group NIA_NGET0133 Identifying Opportunities and Developments in EMF Research Overhead lines Eaves Machining EPL Composite Solutions NIA_NGET0130 Europea De Construcciones Metálicas NIA_NGET0149 Lapp Insulators GMBH NIA_NGET0055 Stri Ab NIA_NGET0018 Valmont Sm A/S NIA_NGET0079 Bruel and Kjaer Uk Inannacon NIA_NGET0025 Resource Strategies NIA_NGET0074 Determining a Threshold For Magnetophosphenes Perception at 50Hz Overhead lines Torrance Investigation of Aeolian Insulator Noise Overhead lines Lawson Health Research Institute Campbell Associates Cranfield University School Of Mgt Electromagnetic Transients (EMT) in Future Power Systems – Phenomena, Stresses and System Operation Sintef Energi AS Modelling Substations Potentials and Profiles Around Earth Electrodes and Opposite-side Injection For Large-area Substations Cardiff University Earthing Systems Rapid Deployment Ballistic Screen C3 Global Doble Powertest Feasibility Study For Sustainable Substation Design Substations Photron ( Europe) SF6 Capture and Leakage Repair SHES Radnor Range Ove Arup And Partners Cape Industrial Services

Project portfolio25 Corporate Responsibility continued Click here to read about this projectWelcome NGET Project Name 13/14 Strategy PARTNERISntnraotveagtyion NIA_NGET0087 Cable Installation Design and Innovation Project (CIDIP) Cables Furmanite Internationalustprdaatetegy NIA_NGET0083 Cable Oil Regeneration Cables Jacobi CarbonsCollaboration & Siemens Transmission and Distributiondissemination NIA_NGET0099 Thermal Efficiency Trials Substations University Of LiverpoolSignificant University Of Southamptonnew learning Enervac CorporationUpdates from JSM Constructionlast year Midlands Truck and VanProject Stewart Signsportfolio UtiliseContact us Rook Services Efficient Build NGET Project Name 13/14 Strategy PARTNER NIA_NGET0104 Proof of Concept of IEC 61850 Process Bus technology Substations Abb Group NIA_NGET0122 Identification and Mitigation of Large Equipment Transport Issues Substations Wynns NIA_NGET0143 Transient and Clearances in the Future Electrical Transmission Systems (ICASE Award) Overhead lines The University Of Manchester NIA_NGET0064 Alternative Bus Bar Protection Solution Substations Schweitzer Engineering Laboratories NIA_NGET0067 Trial and Performance Assessment of ACCR Conductor (3M) Overhead lines 3M United Kingdom Graz University Of Technology NIA_NGET0084 Optimisation of Node Configuration For Offshore Supergrid HVDC Zeck Gmbh NIA_NGET0080 400kV Synthetic Ester Filled Transformer Pilot Project Substations Imperial College Alstom Grid Uk Managing Assets NGET Project Name 13/14 Strategy PARTNER NIA_NGET0102 13kV Shunt Reactor Refurbishment Substations Abb Engineering Services NIA_NGET0103 Modelling The Tape Corrosion Process For Oil-filled Underground Cables Cables University Of Leicester NIA_NGET0109 Bushing and Instrument Transformer Test Tap Connection Condition Assessment Tool Substations Elimpus Elisys Engineering NIA_NGET0117 Bulk Oil Circuit Breaker Bushing in Situ Refurbishment NIA_NGET0118 Understanding and Improving Condition, Performance and Life Expectancy of Substation Substations Process Parameters Assets Substations Narec Development Services NIA_NGET0116 Combustable Gases in Redundant Oil Filled Cables The Watt Cables Utilise

Project portfolio26 Managing Assets continued Click here to read about this projectWelcome NGET Project Name 13/14 Strategy PARTNERISntnraotveagtyion NIA_NGET0115 Cable Stripping Truck Cables UtilisesutprdaatetegyCollaboration & NIA_NGET0123 EPRI Substations Substations Epri Solutionsdissemination NIA_NGET0140 OHL Condition Assessment Overhead lines Brunel UniversitySignificant NIA_NGET0135 Enhanced Sensor Development (iCASE) Substations The University Of Manchesternew learning NIA_NGET0136 Impact of Seabed Properties on Ampacity and Reliability of Cables (ICASE Award) Cables University Of SouthamptonUpdates from NIA_NGET0148 Network Reliability Asset Replacement Decision Support Tool Substations The University Of Manchesterlast year NIA_NGET0147 Condition Monitoring of Power Transformers Substations The WattProject NIA_NGET0146 Assessment of Electronic (analogue and Numeric) Protection Equipment End of Life Substations Quanta Technologyportfolio MechanismsContact us NIA_NGET0040 Magnetic Models For Transformers Substations Cardiff University The University Of Manchester NIA_NGET0017 Oil/paper Insulation HVDC Performance Substations University Of Southampton NIA_NGET0014 Transformer and System Reliability Substations Gnosys UK The University Of Manchester NIA_NGET0044 Transformer Oil Passivation and Impact of Corrosive Sulphur (TOPICS) Substations Doble Powertest Nynas IOM NIA_NGET0033 Wireless Condition Monitoring Sensors with Integrated Diagnostics Substations University Of Southampton NIA_NGET0038 Design of a Smart Tool For Detecting Hidden Errors in Protection Setting Files Substations University Of Strathclyde NIA_NGET0003 Simulation of Multi-terminal VSC HDVC System by Means of Real Time Digital Simulator HVDC University Of Strathclyde (RTDS) Converteam UK NIA_NGET0053 RESNET System Operation The University Of Birmingham NIA_NGET0045 Multi-terminal VSC HVDC Operation, Control and AC System Integration HVDC University Of Aberdeen NIA_NGET0054 Load Cycling and Radial Flow in Mass Impregnated HVDC Submarine Cables HVDC The University Of Manchester The University Of Manchester NIA_NGET0011 Detection and Measurement of ACSR Corrosion Overhead lines Sintef Energi As Statnett Sf NIA_NGET0073 Partial Discharge Monitoring of DC Cable (DCPD) HVDC Hydro-Québec NIA_NGET0042 HVDC EngD - Richard Poole HVDC Southampton Dielectric Consultants NIA_SHET0008 Nanocomposite Elec Insulation Material HVDC Straker Films Limited NIA_NGET0082 Rating Impact of Non-isothermal Ground Surface (RINGS) Cables University Of Southampton Manitoba HVDC Research Centre Gnosys Uk C3 Global Doble Powertest University Of Southampton

Project portfolio27 Managing Assets continued Click here to read about this projectWelcome NGET Project Name 13/14 Strategy PARTNERSIntnraotveagtyion NIA_NGET0048 Cables With Long Electrical Sections Cables University Of Southamptonsutprdaatetegy NIA_NGET0057 DC Circuit Breaker Technologies HVDC The University Of ManchesterCollaboration & NIA_NGET0019 Reliability Assessment of System Integrity Protection Schemes (SIPS) Substations The University Of Manchesterdissemination NIA_NGET0036 Thermomechanical Forces in XLPE Cable Cables University Of SouthamptonSignificant NIA_NGET0060 Application of DC Circuit-breakers in DC Grids HVDC Cardiff Universitynew learning NIA_NGET0010 Optimised Location for Surge Arresters on the Transmission Network Substations Cardiff UniversityUpdates from NIA_NGET0015 Dinorwig Thermal Cycling and Cable Rating Cables Doble Powertestlast year University Of SouthamptonProject NIA_NGET0088 Transformer Research Consortium Substations The University Of Manchesterportfolio NIA_NGET0091 Impact Assessment of Seismic Analysis on Electricity Towers and Substation Equipment / Substations Mott Macdonald UkContact us Structures NIA_NGET0092 Partial Discharge (PD) on Existing HV Cable Cables Doble Powertest Elimpus NIA_NGET0093 Online Gas-in-Oil Analysis on Existing HV Cables Cables NDB Technologie Inc Overhead lines Prysmian Cables and Systems NIA_NGET0035 Long Term Performance on Silicon-based Composite Insulators Overhead lines Doble Powertest NIA_NGET0024 Composite Cross Arms Study Invisible Systems University Of Reading The University Of Manchester Kelvin Construction Co  The University Of Manchester Service Delivery NGET Project Name 13/14 Strategy PARTNER NIA_NGET0043 Live Line Working Equipment Overhead lines Airbus Helicopters UK Ashbrook Engineering Services Bond Aviation Group Broadcast Media Services Cunningham Design Eurocopter UK Hiatco New And Renewable Energy Centre Oxford Computer Consultants Rotary Wing T M Utley Offshore The University Of Manchester

Project portfolio28 Service Delivery continued Click here to read about this projectWelcome NGET Project Name 13/14 Strategy PARTNERSIntnraotveagtyion TTI TestingsutprdaatetegyCollaboration & NIA_NGET0056 Humber SmartZone Pilot Project Other University Of Southamptondissemination AmpacimonSignificant NIA_NGET0046 Flexible Rating Options For DC Operation HVDC Global Substation Solutionsnew learning NIA_NGET0047 Dynamic Ratings For Improved Operational Performance (DROP) Cables The University Of ManchesterUpdates from NIA_NGET0012 Induced Voltages and Currents on Transmission Overhead Lines Under NSI 4 Working Overhead lines University Of Southamptonlast year Practices University Of SouthamptonProject Cardiff UniversityportfolioContact us Smart Grids NGET Project Name 13/14 Strategy PARTNER NIA_NGET0105 Enhanced Weather Modelling for Dynamic Line Rating System Operation University Of Strathclyde NIA_NGET0111 Facilitating Enhanced Network Capacity Evaluation (FENCE) System Operation Oxford Computer Consultants NIA_NGET0119 SAMUEL System Operation University Of Southampton NIC_SPTEN01 VISOR - Visualisation of Real Time System Dynamics Using Enhanced Monitoring System Operation Reactive Technologies Alstom Grid UK NIA_NGET0155 Open Source Interconnector Modelling System Operation Elisys Engineering NIA_NGET0023 Quantifying Benefits and Risks of Applying Advanced Network Control and Demand System Operation Baringa Partners Response Technologies to Enhance Transmission Network Performance Energy Networks Association Imperial College Non-Sync Generation NGET Project Name 13/14 Strategy PARTNER NIA_NGET0106 Control and Protection Challenges in Future Converter Dominated Power Systems System Operation University Of Strathclyde NIA_NGET0128 Clustering Effects of Major Offshore Wind Developments System Operation University Of Reading NIA_NGET0129 Investigation of Sub- Synchronous Interactions Between Wind Turbine Generators and System Operation Imperial College NIC BID Series Capacitors NIC BID Development 2014 System Operation DNV Kema GL Noble Denton Parsons Brinckerhoff

Project portfolio29 Non-Sync Generation continued Click here to read about this projectWelcome NGET Project Name 13/14 Strategy PARTNERSIntnraotveagtyion NIA_NGET0039 A Combined Approach to Wind Profile Prediction System Operation The University Of Sheffieldustprdaatetegy NIA_NGET0016 UK-wide Wind Power:Extremes and Variability System Operation University Of ReadingCollaboration & NIA_NGET0028 Impact of Extreme Events on Power Production at the Scale of a Single Wind-farm System Operation University Of ReadingdisseminationSignificant Demandnew learningUpdates from NGET Project Name 13/14 Strategy PARTNERlast yearProject NIA_NGET0114 Industrial and Commercial Modelling System Operation Ove Arup Partnershipportfolio NIA_NGET0110 Electrical Demand Archetype Model (EDAM2) System Operation Energy Savings TrustContact us NIA_NGET0120 System Operation Evolution of Energy Storage & Demand Management Services EA Technology System Operation Electricity Storage Network NIA_NGET0134 Granular Voltage Control System Operation Power Perfector NIA_NGET0138 Frequency Sensitive Electric Vehicle and Heat Pump Power Consumption System Operation Element Energy NIA_NGET0085 UK Regional Wind: Extreme Behaviour and Predicatibilty System Operation University Of Reading NIA_NGET0097 Development of Generic Dynamic Demand Model in DigSILENT Power Factory Cardiff University Risk Management NGET Project Name 13/14 Strategy PARTNER NIA_NGET0144 Integrated Electricity and Gas Transmission Network Operating Model System Operation The University Of Manchester NIA_NGET0052 Mathematics of Balancing Energy Networks Under Uncertainty System Operation Heriot-Watt University NIA_NGET0059 NIA_NGET0058 Protection and Fault Handling in Offshore HVDC Grids HVDC Sintef Energi AS Scalable Computational Tools and Infrastructure For Interoperable and Secure Control of System Operation Brunel University NIA_NGET0095 Power System. Visualisation of Renewable Energy Models System Operation University Of Reading Distributed Generation NGET Project Name 13/14 Strategy PARTNER NIA_NGET0139 PV Monitoring Phase 1 System Operation Gmi Renewable Energy Group Invisible Systems NIA_NGET0142 Assessment of DG Behaviour During Frequency Disturbances as System Inertia Reduces NIA_NGET0020 Modelling of Embedded Generation Within Distribution Networks and Assessing the System Operation Energy Networks Association Impacts on Load Profile at Transmission Level Grid Supply Points (GSPs) System Operation University Of Bath Imperial College