High voltage lines

We deliver turnkey solutions for the entire lifecycle of power transmission lines

Electricity keeps society moving. We are a full lifecycle partner for the transmission grid and high-voltage distribution networks from design and construction to modernisation and maintenance. We design and build high-voltage transmission networks for substations, wind farms, industry and data centres, ensuring safety and quality in everything we do. We operate as a trusted partner for power networks in Finland, Sweden and the Baltic countries.

We provide comprehensive design services for power lines

We carry out preliminary and general design of power lines for both modernisation projects and the construction of new networks. We help our customers identify the best solutions for line routing, structures and technical options. Maintenance and upkeep requirements are considered from the very beginning of the design process.

Our design services include

  • Route planning and initial assessments
  • General design
  • Tower placement and profile design
  • Earthing design and step and touch voltage assessments
  • Structural design
  • Foundation design
  • Documentation and data management in collaboration with the customer

Building power lines with decades of expertise

We have decades of experience in power line construction. As a lifecycle partner, we support our customers with everything from small maintenance tasks to large, complex projects and greenfield projects.

Our extensive and reliable international partner network ensures durable materials, while keeping carbon footprint reduction in mind.

Our construction services include

  • Project planning
  • Material procurement and quality control
  • Installation and construction work
  • Documentation and commissioning

We keep the network operational and safe throughout its entire lifecycle

We carry out power line maintenance in Finland, Sweden and the Baltic countries. Our proactive and cost-effective maintenance approach ensures high network reliability. We utilise advanced digital tools to support our maintenance work.  When needed, we also conduct comprehensive condition assessments of power lines and provide recommendations to extend their lifecycle.

Our operation and maintenance services include

  • Maintenance contracts and fault response readiness
  • Assessment of repair needs
  • Maintenance works, including fault repairs, tower and insulator replacements, and guy wire repairs
  • Inspections
  • Comprehensive documentation

Whether it’s the national grid, a distribution network, a wind farm or a data centre, our experienced team and efficient processes help speed up time to market and increase the value of our customers’ assets.

We have built and modernised more than 500 kilometres of high-voltage power lines in Finland since 2020s.

Get in touch, we’re happy to help!

Santeri Hirvonen
Director
HVL, Finland