National Grid Plc · LSE:NG.

National Grid — Technical Presentation (August 2025)

20 slides from National Grid's technical presentation, Aug 8, 2025

  1. Slide 1: Assessment of Superconducting Technologies for Standards Development

    Assessment of Superconducting Technologies for Standards Development Strategic Innovation Fund (SIF) Show & Tell Webinar 08/08/25

  2. Slide 2: Presentation outline

    Presentation outline Project problem statement Project context Alpha phase project overview System overview and operational requirements Failure modes and effects analysis Figure 1. SCADENT Standards gap analysis Planned next steps Q&A & Discussion Figure 2. SCOHL National Grid | HTS Alpha phase – S

  3. Slide 3: Problem statement

    Problem statement The GB energy system requires significant network For HTS technology to be considered as reinforcements to meet future energy demand, avoid credible solution, we need to understand: constraints, and support the uptake of renewable • Where could HTS technology be generation. deploye

  4. Slide 4: Project context – SCADENT & SCOHL

    Project context – SCADENT & SCOHL Historically, NGET have supported two HTS projects through the strategic innovation fund: Superconducting Applications for Dense Superconducting Overhead Lines (SCOHL): Energy Transmission (SCADENT): HTS AC HTS AC OHL systems. (Discovery phase cable systems. complet

  5. Slide 5: Alpha phase project overview

    Alpha phase project overview WP2: Understand operation system requirements • System Overview KO Workshop • Dissection of System Specifics • Production of System Diagram & Technical Note Parallel NIA project WP3: System FMEA • Exploration and development of future • Identify potential failure modes f

  6. Slide 6: WP2: Understand operational system requirements

    WP2: Understand operational system requirements • Review system design for each of the technology providers. • Improve understanding of each system detailing operational considerations. • Identify new / niche components within the HTS system that need additional considerations. • Provide a baseline

  7. Slide 7: WP2: Cable System

    WP2: Cable System • Clear and accessible overview of SuperNode HTS cable system, and sub-systems. (Figure 3-5) • Provides a basis for engagement with future stakeholders. Figure 3. Cable sub-system (inc. cryostat) Figure 4. Termination sub-system Figure 5. Cooling supply sub-system National Grid | H

  8. Slide 8: WP2: OHL System

    WP2: OHL System • Clear and accessible overview of VEIR HTS cable system, and sub-systems. (Figure 6-8) • Provides a basis for engagement with future stakeholders. Figure 6. Conductor sub-system (inc. cryostat) Figure 7. Tower sub-system Figure 8. Cooling sub-system National Grid | HTS Alpha phase –

  9. Slide 9: WP3: FMEA

    WP3: FMEA WP3 Objectives WP3 Outputs • Understanding of current standards • Design and plan FMEA workshops. landscape • Review HTS system in more detail. • Identification of gaps in existing testing • Outline critical components to inform regimes gap analysis. National Grid | HTS Alpha phase – Show

  10. Slide 10: WP3: FMEA

    WP3: FMEA • Dedicated FMEA sessions were facilitated for both OHL and Cable systems • 146 FMEA line entries across both systems • Outputs ranked and prioritised in terms of TRL in isolation & TRL in context • Outcome: Informed direction for Standards gap analysis. National Grid | HTS Alpha phase – S

  11. Slide 11: WP4: Standards Gap Analysis

    WP4: Standards Gap Analysis WP4 Objectives Split FMEA outcomes into thematic areas for investigation. Investigate suitability of existing standards. Identifying gaps in testing regimes. Develop next steps. WP4 Outputs FMEA found three primary failure categories: • Mechanical (including thermal) • e.

  12. Slide 12: National Grid | HTS Alpha phase – Show & Tell Webinar | 08.08.25

    National Grid | HTS Alpha phase – Show & Tell Webinar | 08.08.25 12

  13. Slide 13: Standard review process

    Standard review process National Grid | HTS Alpha phase – Show & Tell Webinar | 08.08.25 13

  14. Slide 14: So what do we have in literature… Limited superconductivity standards

    So what do we have in literature… Limited superconductivity standards for transmissions systems National Grid | HTS Alpha phase – Show & Tell Webinar | 08.08.25 14

  15. Slide 15: Significant literature for traditional AC and DC Systems

    Significant literature for traditional AC and DC Systems…eg National Grid | HTS Alpha phase – Show & Tell Webinar | 08.08.25 15

  16. Slide 16: WP4: Standards Gap Analysis

    WP4: Standards Gap Analysis Developed a risk matrix of “high to low” on key asset de-risking and tests. Current HTS standards do cover many aspects of the manufacturing process and the main cryostat/current carrying elements. However, system level testing and scope, needs to be adapted for high-volt

  17. Slide 17: Next steps - plan for Beta application

    Next steps - plan for Beta application Decision to move into a Beta phase currently in review by NGET, with the aim of the Autumn application window. Round 5, Innovation Challenge 1: Advanced Energy Transmission and Networks: How can we leverage breakthroughs in semiconductor, superconductor, and wi

  18. Slide 18: Conclusions

    Conclusions Through this alpha phase project, we have: • Defined what an operational HTS system would consist of and how it would be operated, producing accessible system overviews of each technology to support future engagements. • Examined the operational failure modes and effects for each HTS sys

  19. Slide 19: Q&A / Discussion

    Thank you for your attention Q&A / Discussion

  20. Slide 20: nationalgrid

    nationalgrid

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