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  1. 1. Part of the portfolioExtending the capacity of the Power Grid5th Annual Smart Grids & Cleanpower 2013 Conference5 June 2013 AnsellChairman & CEO: Fault Current Limited
  2. 2. Part of the portfolioThe challenge•  Renewable energy targets•  Utility’s statutory responsibility•  Preserve quality of supply•  Minimize disruptive impact•  Connection constraints•  Grid design limits•  Costly upgrades•  Unnecessarily replace network assets•  Renewable energy schemes: financial viability
  3. 3. Part of the portfolioPower Grid complexity
  4. 4. Part of the portfolioGeneration dynamic6 AEAElectric Cars 0 0 0 0 2 31 72 132 245 544Totals 26,456 29,798 34,377 44,522 50,072 81,192 120,339 156,774 197,953 244,658Figure 2.2: Breakdown of UK renewable energy production 2005 – 2009 and forward projectionto 2020 - central estimate050,000100,000150,000200,000250,0002005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020RenewableEnergyProduction(GWh)Historic and projected energy production to 2020 - central estimateElectric CarsBiomethane to transportSecond generation biofuelsFirst generation biofuelsDeep geothermal heatBiogas injection into gas gridBiomass district heatingEnergy from waste - heatBiomass boilers(heat)Ground Source Heat PumpsAir Source Heat PumpsSolar ThermalWave powerHydropowerTidal streamSolar PVLandfill GasElectricity from wasteBiomass electricityOffshore WindOnshore wind*Analysis of Renewables Growth to 2020: AEA Technology report to DECC
  5. 5. Part of the portfolioWhat is a fault?A fault is any abnormal (unplanned for) flowof electric current•  Power systems are designed toaccommodate a maximum fault current•  Circuit breakers and protection systemsisolate faults, limiting loss of service andnetwork equipment damage•  Addition of new power sources changes apower system’s characteristics•  increasing the maximum fault current,beyond the system design limits
  6. 6. Part of the portfolioFault Current LimiterA FCL limits the maximum level of a fault current when afault occurs….allowing the existing power system protectionequipment to safely isolate the faultPlugging America Into the Future of Poweral shortrcuit, in anof factorsd powernes causeessiveent—al systeme of onecausing aa blowner (FCL)ent flow-nd allowsrruptedsystem,protectorso house-wo broadlogies exist:onducting and solid-state.WHAT ARE THE BENEFITS TO UTILITIES?FCLs offer numerous benefits to electric utilities. For in-stance, utilities spend millions of dollars each year to main-TransparentActive
  7. 7. Part of the portfolioFault event waveform
  8. 8. Part of the portfolioFault limiting methods
  9. 9. Part of the portfolioFCL technologiesSuperconductors FC LimitedCurrentdependentinductorNo CryostatLow heating lossesPassive systemCryogenic = Operational Cost PassiveAutonomousSystemNoOverheadsElectronic control = Operational CostPower supplies = Operational CostDC biasFerromagneticDC bias keeps core insaturationVariable impedanceHeating lossesDC Magnet
  10. 10. Part of the portfolioApplications & benefits•  Network ‘Meshing”:Improving networkreliability•  Bus coupling:Increasing operationalflexibility•  Employing lower ratedequipment: Reducingnetwork impedance•  Reducing voltage sags:Improve power quality•  Power generation feeders: Enabling renewable energyconnection•  Defer capital expenditure: Extending useful life of existingnetwork assets
  11. 11. Part of the portfolioMarket potential•  FCLs identified as ‘technology mostlikely to realise significant valuefrom public sector innovationsupport’*•  UK Deployment estimates*•  296 – 406 units by 2020•  1182 – 1625 units by 2050•  More than 21 SCFCL trials acrossthe globe•  UK, Germany, China, Japan, Korea,Spain, USA…..*Reference: Technology Innovation Needs Assessment: August 2012
  12. 12. Part of the portfolioDeployment benefits•  FLEXGRID (WPD Tier 2 LCNFproject) advanced fault levelmanagement in Birmingham•  Cost to upgrade: £48.4m•  Cost to add FCLs: £10m•  Potential saving: £38.4m•  FCLs are estimated to have animpact of between £0.8bn - £1.1bnvalue in business creation, togetherwith £200m value in meetingemissions targets*Reference: WPD Flexgrid project: LCNF submissionTINA report August 2012
  13. 13. Part of the portfolioFit & Forget‘Ideal’ Fault Current Limiter characteristicsü  Lower Capital Costs: compared with replacingnetwork assetsü  Quick to install: single phase foot-printü  Performance criteria met (reliability & longevity)ü  Negligible operations & maintenance costsü  No unusual health & safety issuesü  Fail-safe
  14. 14. Part of the portfolioNext generation FCLFault Current Limited•  Spin-off from Cardiff University (Wolfson Centre forMagnetics):novel concept meets all ‘ideal’ criteria•  Backed by Fusion IP & IP Group•  DECC grant award to build demonstrator•  UK based manufacturing partners
  15. 15. Part of the portfolioExtending the capacity of the Power Grid
  16. 16. Part of the portfolioReferences•  WPD FLEXGRID project: LCNF Tier 2 submission•  Technology Innovation Needs Assessment (TINA): August2012•  Analysis of Renewables Growth to 2020: AEA Technology•  Application and Feasibility of Fault Current Limiters in PowerSystems: CIGRE WG A3.23 – June 2012
  17. 17. Part of the portfolioExtending the capacity of the Power Grid