Fingrid will modernise a substation in Jyväskylä to improve power system security

The Finnish transmission system operator Fingrid will modernise the Rauhalahti substation in Jyväskylä. The modernisation of the substation will improve the system security of the power grid and make it possible to connect the electric boilers of the energy company Alva to the main grid, thereby achieving cleaner district heating production.

Fingrid will modernise the 110-kilovolt substation in Rauhalahti, which was built in 1984 and has reached the end of its useful life, by replacing its equipment. The refurbishment of the Rauhalahti substation will maintain good electricity system security in Jyväskylä and extend the service life of the substation by around 40 years. The refurbishment will be completed during 2026.

The energy company Alva will build a production unit consisting of two electric boilers and a district heating battery on the Rauhalahti power plant plot during the next couple of years. It will be connected to the district heating network. The electric boilers and district heating battery will generate heat with electricity, providing a sustainable way to produce energy without incineration. The refurbishment of the Rauhalahti substation will enable these electric boilers to be connected to the main grid.

Finland aims to become carbon neutral by 2035. The main grid will need to be strengthened to achieve this goal, and we will need a significant increase in electricity production from renewable energy sources.

Further information:

Timo Kiiveri, Executive Vice President, Fingrid Oyj, +358 30 395 5136