The Finnish electricity transmission grid and the challenges of planning resources in the future
The national electric transmission grid of Finland is a vital part of our country’s energy system, facilitating the efficient and reliable transfer of electricity from producers to consumers. In the future, the transmission grid will face several challenges that require careful preparation. These challenges include growing electricity consumption, integration of renewable energy sources, and upgrading aging infrastructure.
Growth in electricity consumption and renewable energy sources
In Finland, electricity consumption is continuously increasing and is predicted to quintuple by 2040. Data centers are major consumers of electricity, and their number and size are continually growing as well as hydrogen production via electrolysis, which demands large amounts of electricity. This leads to a significant increase in electricity consumption, meaning the transmission grid must be expanded and strengthened to meet growing demand. The integration of renewable energy sources, such as wind and solar energy, into the transmission grid poses its own challenges. These energy sources are inherently variable, and their production is not as predictable as traditional energy sources. Therefore, the transmission grid must be flexible and capable of responding to rapid changes in production and consumption.
Challenges in transmission grid design resources
Expanding and updating the transmission grid requires significant design resources, and more pole designers are needed in Finland. Poles are critical components of the transmission grid, supporting power lines and ensuring their safety and functionality. Pole design requires specialized expertise and experience, which we can provide at Sweco.
From a designer’s perspective, pole design is a complex process that requires a deep understanding of structural mechanics, materials, and environmental factors. The designer must consider many aspects, such as wind loads, ice loads, and soil properties, to ensure that poles can withstand Finland’s varying weather conditions. Pole design also requires ongoing collaboration with various stakeholders, such as construction contractors and authorities, to ensure smooth project progress.
Sweco’s strong expertise in tower structures and substation design
Sweco has participated in several power line projects in Finland, involving tower structures and substations. We have been involved in designing transmission grid expansions in multiple locations in Finland, where the integration of wind farms has been particularly challenging. With our solid work experience, Sweco’s experts have used advanced design tools and methods to ensure that towers meet all necessary technical and safety requirements.
Sweco specializes in designing landscape towers and portals. Notable projects include the Länsisalmi landscape portal, Hepokorpi poles, Viänntö landscape portal in Kuopio, Imatra portals and landscape poles, and the Viikinmäki landscape portal.
Sergei Lemetti, Department Manager, Industry and Energy, sergei.lemetti@sweco.fi
Photo: Viänttö landscape portal in Kuopio.