Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy
    Projects
    Contract Award

    Hitachi HVDC converter stations for Scotland links: civil and geotechnical notes

    January 6, 2026|

    Reviewed by Tom Sullivan

    Hitachi HVDC converter stations for Scotland links: civil and geotechnical notes

    First reported on New Civil Engineer

    30 Second Briefing

    SSEN Transmission has awarded Hitachi Energy contracts to design and supply HVDC converter stations for two planned subsea cable links in the north of Scotland, forming key onshore nodes for long-distance offshore power transfer. The stations will convert AC from the Scottish grid to DC for export via subsea cables and back to AC at the receiving end, enabling lower-loss transmission over hundreds of kilometres. For civil and geotechnical teams, the projects imply substantial foundations, high-electromagnetic-field layouts, and interface works with existing 275 kV and 400 kV infrastructure.

    Technical Brief

    • Converter stations will act as onshore terminals for long-distance subsea links, integrating with existing Scottish grid nodes.
    • Award signals progression of the subsea links from development into early delivery / procurement phase.
    • Civil works expected to include large equipment foundations, high-bay buildings and heavy transport access for converter transformers.
    • Electromagnetic compatibility constraints will drive earthing, cable routing and separation distances to adjacent infrastructure.
    • Similar multi-terminal HVDC schemes in the UK have typically required multi-year phased commissioning and complex outage planning.

    Our Take

    Within our 356 Infrastructure stories, Scotland and the wider United Kingdom feature heavily in grid reinforcement and interconnector work, signalling that SSEN Transmission’s HVDC investments are part of a sustained regional push to accommodate offshore renewables and north–south power flows.

    Hitachi Energy appears in multiple recent grid and converter station items in our database, suggesting it is consolidating its position as a preferred supplier for complex HVDC schemes where utilities want a single OEM to de‑risk integration and long-term maintenance.

    For UK-based Projects tagged as Contract Award, high-voltage transmission packages like this typically sit on the critical path for commissioning; delays or supply bottlenecks at converter stations can drive programme risk for the entire subsea cable link and associated generation tie-ins.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Implenia/Marti JV MehrSpur Zurich–Winterthur: design and risk notes for engineers
    Infrastructure
    in 7 months

    Implenia/Marti JV MehrSpur Zurich–Winterthur: design and risk notes for engineers

    Swiss Federal Railways has awarded an Implenia/Marti 50:50 joint venture five of six MehrSpur Zurich–Winterthur lots worth just under CHF 1.7 billion, including the 8.3 km Brüttener tunnel (Lot 240) with twin 10 m diameter single-track tubes and a 1 km spur to Zurich Airport. TBM excavation will start in August 2029, with a roughly ten-year construction phase using BIM for planning and execution and extensive special foundations, earthworks and embankments. Additional works cover full redevelopment of Dietlikon station, about 6 km of new track across Dietlikon and Wallisellen sections, multiple underpasses, bridges and the Neumühle railway bridge and Storchen underpass near Winterthur.

    Xihe on Tung Chung Line down-track: TBM turnback method and risks for tunnel engineers
    Infrastructure
    in 5 months

    Xihe on Tung Chung Line down-track: TBM turnback method and risks for tunnel engineers

    TBM Xihe, a 7.3m-diameter, 100m-long, 1,000-tonne Herrenknecht slurry machine, has completed the up-track drive to the future Tung Chung West Station and has begun boring the down-track tunnel towards Tung Chung Station for MTR’s Tung Chung Line Extension in Hong Kong. The Bouygues Travaux Publics–Dragages Hong Kong JV turned the TBM underground within the launch shaft using a push-pull method and self-propelled modular transporter, avoiding full disassembly and surface transport. About 1.3km of new twin-bore tunnels are being driven close to existing rail and urban structures, with commissioning targeted for 2029.

    Sydney Metro Stations Package West: design and delivery notes for engineers
    Infrastructure
    in 4 months

    Sydney Metro Stations Package West: design and delivery notes for engineers

    Gamuda Engineering has secured the Sydney Metro Stations Package West as principal contractor, covering design and construction of five new underground stations at Westmead, North Strathfield, Burwood North, Five Dock and The Bays on the 24km Sydney Metro West line between Greater Parramatta and the CBD. The scope includes deep station boxes, entrances and access points, full station fit-out and integration with surrounding precincts, with Laing O’Rourke and DT Infrastructure joining as MetroVista delivery partners. Site works are scheduled to start on Monday, 5 January 2026.

    Related Industries & Products

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.