Transmission and Distribution Engineering

Groundline is a Global Engineering Consultancy — Experts in Overhead Lines and Underground Cabling Design.

We offer services across multiple disciplines and are experts in providing design from concept through to completion.

About Us
From Kyle James (CEO)

At Groundline, we're engineers first. For more than 20 years, we've specialised in transmission line and cable engineering across New Zealand, Australia, the UK, and the USA.

With deep technical expertise and real local knowledge, we solve complex engineering challenges and deliver solutions that stand up in the field, not just on paper. Behind every project is a team committed to keeping power moving for the communities that depend on it.

Whether you're planning, designing, or delivering critical energy infrastructure, we'd welcome the opportunity to help. Explore our work, meet our team, and see how Groundline can support your next project.

About Us

What We Do

Groundline Engineering partners with network owners, developers, and independent connection providers worldwide to deliver reliable transmission and distribution solutions. Specialising in overhead power lines, underground cable networks, and engineering design services. We provide practical, high-quality support across the entire project lifecycle, from concept and design through to drafting and project delivery.

Overhead Line Design

Overhead line design engineering is at the focus of what Groundline does. We plan optimal alignments for transmission lines across varied terrain, balancing engineering, land access, environmental, cultural, and constructability constraints to deliver practical constructable designs for transmission, distribution, and renewable energy projects.

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Underground Cable Design

Experts in underground cabling, Groundline delivers HV and EHV cable routing and system design for greenfield, brownfield, airfield and subsea projects. We combine cable design, route optimisation, system engineering, earthing and bonding design, and testing support to deliver reliable, efficient solutions.

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Drafting

Our exceptional team of CAD designers and drafters. Groundline delivers the technical drawings and digital models needed to support design, construction, and asset management. Using AutoCAD, MicroStation, Revit, Inventor, and PLS-CADD, we provide accurate, construction-ready deliverables.

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Design Assurance

Groundline provides specialist engineering design services to Independent Connection Providers (ICPs) operating across the UK's regulated electricity networks.

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Additional Services

Structural design, Foundation Design, Verification & Design Assurance, Site Engineering & Construction Support, and Advisory: Built on experience not theory. All sit alongside our core design disciplines. These specialist engineering services support the full lifecycle of overhead line and underground cable infrastructure and distribution.

Learn More
TDR and Foundation

Foundation testing and engineering design are too often treated as separate line items, handled by different vendors, on disconnected scopes, with a handoff somewhere in the middle.

Learn More
Overhead Line Design

Overhead line design engineering is at the focus of what Groundline does. We plan optimal alignments for transmission lines across varied terrain, balancing engineering, land access, environmental, cultural, and constructability constraints to deliver practical constructable designs for transmission, distribution, and renewable energy projects.

Learn More
Underground Cable Design

Experts in underground cabling, Groundline delivers HV and EHV cable routing and system design for greenfield, brownfield, airfield and subsea projects. We combine cable design, route optimisation, system engineering, earthing and bonding design, and testing support to deliver reliable, efficient solutions.

Learn More
CAD

Our exceptional team of CAD designers and drafters. Groundline delivers the technical drawings and digital models needed to support design, construction, and asset management. Using AutoCAD, MicroStation, Revit, Inventor, and PLS-CADD, we provide accurate, construction-ready deliverables.

Learn More
Design Assurance

Groundline provides specialist engineering design services to Independent Connection Providers (ICPs) operating across the UK's regulated electricity networks.

Learn More
Additional Services

Structural design, Foundation Design, Verification & Design Assurance, Site Engineering & Construction Support, and Advisory: Built on experience not theory. All sit alongside our core design disciplines. These specialist engineering services support the full lifecycle of overhead line and underground cable infrastructure and distribution.

Learn More
TDR and Foundation

Foundation testing and engineering design are too often treated as separate line items, handled by different vendors, on disconnected scopes, with a handoff somewhere in the middle.

Learn More
Overhead Line Design

Overhead line design engineering is at the focus of what Groundline does. We plan optimal alignments for transmission lines across varied terrain, balancing engineering, land access, environmental, cultural, and constructability constraints to deliver practical constructable designs for transmission, distribution, and renewable energy projects.

Learn More
Underground Cable Design

Experts in underground cabling, Groundline delivers HV and EHV cable routing and system design for greenfield, brownfield, airfield and subsea projects. We combine cable design, route optimisation, system engineering, earthing and bonding design, and testing support to deliver reliable, efficient solutions.

Learn More
Drafting

Our exceptional team of CAD designers and drafters. Groundline delivers the technical drawings and digital models needed to support design, construction, and asset management. Using AutoCAD, MicroStation, Revit, Inventor, and PLS-CADD, we provide accurate, construction-ready deliverables.

Learn More
Design Assurance

Groundline provides specialist engineering design services to Independent Connection Providers (ICPs) operating across the UK's regulated electricity networks.

Learn More
Additional Services

Structural design, Foundation Design, Verification & Design Assurance, Site Engineering & Construction Support, and Advisory: Built on experience not theory. All sit alongside our core design disciplines. These specialist engineering services support the full lifecycle of overhead line and underground cable infrastructure and distribution.

Learn More
TDR and Foundation

Foundation testing and engineering design are too often treated as separate line items, handled by different vendors, on disconnected scopes, with a handoff somewhere in the middle.

Learn More

Segments We Work In

Groundline Engineering provides specialist engineering solutions across the power and energy sector, supporting clients from project development through to delivery, operation, and maintenance.

Utilities (transmission/distribution)

Renewables
(Wind Farms / Solar)

EPC/Contractors

Generators

ICP

Trusted by the industry globally

Let’s Get to Work.