
We combine rigorous engineering, practical construction insight, and standards driven assurance to help clients achieve reliable and future ready underground networks. Our collaborative approach ensures challenges are addressed early and outcomes are aligned from design to commissioning.
We have experience in all aspects of the power lines industry; from 11kV to 500kV+, new builds to refurbishments, condition assessments to asset management, site support and design verifications to project management – we’ve done, and can do, it all.
Our team has worked around the world, in incredibly diverse and difficult environments; from remote, dry deserts, to wild, wet rainforests, urban cities, to cyclone-prone prairies - no matter what your challenge, we understand what’s required.
Cable systems, design, and Electrical Site Manager, managing Hyder Infrastructure Ltd Cable System Design and Substation design teams.
Managing the greenfield Cabling Design and the interface between the Utility and cable installation supplier.
Consulting the Design, Cable design and installation contractor for the cable system works and various test center installations.
Cable design and Substation installation contractor for the 33kV connection and cable system routes to the Teesside offshore wind farm beach head joint transition locations.
Heathrow airport Ltd covering the installation of 30+major substations and 800kM of 33/11kV cabling in a subterranean network of tunnels, pit and duct networks in a square kilometer.
Optioneering / Planning & Consultation Plus studies inc Environmental & SI
Groundline Engineering partnered with the client to deliver a new 132 kV underground cable circuit, providing end-to-end engineering support from route development through to installation and commissioning. The project required close coordination with stakeholders and careful management of technical interfaces to ensure a safe, compliant, and constructible solution. By combining detailed system design with practical installation guidance, Groundline helped derisk delivery and enabled the successful introduction of critical high-voltage infrastructure into the network.

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