Expertise

Transmission: Overhead and Underground Network Solutions

Reliable Power Transmission Systems for Tomorrow

Power transmission is the critical link in modern electricity infrastructure, transporting energy from generation sites to the distribution grid. Omexom’s overhead lines and underground cables enable reliable power supply worldwide.

What You Need to Know About Power Transmission at Omexom

  • Transmission: Power transmission includes the transport of electricity via overhead lines and underground cables, connecting power generation to the distribution grid.
  • Grid Integration Challenge: The large-scale integration of intermittent renewable energy sources requires infrastructure adaptation and smart balancing systems.
  • Core Services: Omexom specializes in HV underground cables and overhead transmission lines, offering end-to-end solutions from design to commissioning and maintenance.
  • Global Reach: With 570 business units across 36 countries, Omexom combines global capabilities with local supplier networks while prioritizing safety and sustainability.

Electricity supply efficiency is a key concern for every country, and power transmission plays a critical role in ensuring reliable energy delivery. The wide-scale integration of intermittent energy sources into the electrical grid is creating major challenges for operators worldwide, particularly in terms of infrastructure adaptation and the development of new systems that enhance supply and consumption across the grid.

To address these challenges, Omexom works in tandem with electricity Transmission System Operators (TSOs) to support network operations, building and maintaining overhead and underground lines around the world.

We collaborate closely with major Original Equipment Manufacturers (OEMs) to deliver customer-specific services, using the latest technologies to improve the development, construction, and operation of grid assets.

In addition, we provide high-level engineering solutions and drive innovation in the sector to boost productivity and safety. Our teams are committed to developing sustainable initiatives that strengthen our positive impact worldwide.

As a leading EPC contractor, Omexom specializes in the two essential technologies that form the backbone of power transmission: HV underground cables and overhead lines. Whether the project calls for discreet underground solutions in urban environments or large-scale overhead infrastructure across challenging landscapes, our teams deliver end-to-end services that ensure grid stability, safety, and long-term performance.

Omexom works in tandem with electricity Transmission System Operators (TSOs) to support power transmission networks, building and maintaining overhead and underground power transmission lines throughout the world.

We work in close collaboration with major Original Equipment Manufacturers (OEMs) to deliver customer-specific power transmission services, using the latest technologies to improve the development, construction, and operation of our customers’ power transmission assets.

HV Underground Cables for Urban and Sensitive Areas

We are involved in all aspects of line-based electrical energy transmission. Working with energy producers and suppliers, we deliver comprehensive underground transmission line solutions, including planning and dimensioning, supply chain procurement, trench implementation, cable pulling, protection works, and testing and commissioning through to asset inspection. 

Discover HV Underground Expertise

Overhead Lines: Large-Scale Infrastructure for Any Terrain

From design to commissioning and maintenance, we support our customers throughout every stage of an electricity transmission overhead line project. Our cutting-edge approach in overhead transmission line solutions enables us to provide a wide range of services, including site preparation and scheduling, method statements, resource and plant management, and corrective maintenance, ensuring our clients achieve the best return of experience in terms of Capex, OpEx, and reliability.

As a global EPC contractor, we deliver overhead line projects with the highest safety standards.

Discover Overhead Line Expertise

Our Approach: Partnership and Collaboration

Omexom works in tandem with electricity Transmission System Operators (TSOs) to support power transmission networks, building and maintaining overhead and underground power transmission lines throughout the world. 

We work in close collaboration with major Original Equipment Manufacturers (OEMs) to deliver customer-specific power transmission services, using the latest technologies to improve the development, construction, and operation of our customers’ power transmission assets. 

References & International Expertise

  • Järvilinja 1 Transmission Project

    Country: Finland
    Client: Fingrid
    Scope: 216 towers for a double-circuit transmission line (400 kV + 110 kV), with 75% guyed towers
    Dates: 2024-2026
    BU: Omexom OHL International & Omexom Finland HV Grid Projects

    Overhead high-voltage transmission line crossing a snowy forest landscape, illustrating grid expansion in northern conditions

  • Salzburgleitung Project

    Country: Austria (Salzburg)
    Client: Austrian Power Grid (APG)
    Dates: 2020–2025
    BU: Omexom Austria

    High-voltage overhead transmission line tower installed across green fields and forested hills in an alpine landscape

Our Experts in Transmission

Our teams across countries bring expertise in engineering, construction, inspection, and digitalization of transmission networks.

News related to Transmission Expertise

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  • Structural view from inside a steel lattice transmission tower supporting overhead power lines
  • Overhead transmission line construction with conductors being installed on a steel lattice tower
  • High-voltage transmission tower and conductors spanning across a mountainous lake landscape
  • Maintenance inspection of overhead transmission lines and pylons in a mountainous environment
  • Technicians installing overhead high-voltage transmission conductors on a power line tower in a rural landscape
  • High-voltage transmission tower crossing a natural valley landscape, supporting long-distance power networks
  • High-voltage transmission infrastructure near an industrial site during winter conditions
  • High-voltage transmission tower installed in a forested and agricultural landscape
  • High-voltage transmission line installation on a pylon using suspended conductor reels above open countryside
  • Underground power transmission works with cable trench installation along a rural access road

Global Reach, Local Expertise 

With 570 business units across the world, we have strong connections with local suppliers and contractors, each offering unique capabilities. As a global EPC contractor, our collaborative approach ensures you benefit from the most capable team for your project.   

Operating in 36 countries and working closely with local suppliers, we are committed to the highest standards of quality, health and safety, and environmental performance, delivering sustainable, efficient, and secure energy solutions worldwide

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