Lieto – Forssa Line is a 400kV overhead line with a length of 67km from Lieto, Turku, Finland, to Forssa, Tavastia, Finland.

Construction works on the Lieto – Forssa Line started in 2017 and the project was commissioned in 2019.


The Lieto – Forssa Line, which is an overhead line, is being operated by Fingrid. The Lieto – Forssa Line is a new line. The line carries alternating current (AC) through single circuit cable.

Lieto – Forssa Line project development status

The development of the Lieto – Forssa Line project was approved by Energy Authority, Finland in 2017 and the project works were completed in 2019.

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By GlobalData

About Fingrid

Fingrid Oyj (Fingrid), is an electricity transmission operator that plans and monitors operation of Finnish electricity transmission system. It transmits electricity through transmission lines, substations, HVDC connections and reserve power plants. Fingrid also offers connecting consumption and production to the main grid, transmission system security, power trade and imbalance settlement, functioning electricity markets, the production and electricity market information exchange, and origin certificates guarantee services.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.