Next Stage of Upgrade Began at Verkhne-Tulomskaya HPP of TGC-1


TGC-1 decommissioned the hydroelectric generating unit No. 1 of the Verkhne-Tulomskaya HPP for subsequent dismantling and upgrade. Power engineers will upgrade its core equipment, as well as control and adjustment systems.

“Earlier, hydroelectric generating unit No. 4 was completely replaced as part of the sweeping upgrade of the hydroelectric power plant — it was commissioned on 01 April 2020. New equipment for hydroelectric generating unit No. 1 has already been delivered to the site, this will accelerate the installation of components and systems,” said Oleg Tyapinov, Chief Engineer of the Kola Branch of TGC-1.

The upgrade of the Verkhne-Tulomskaya HPP began in 2018.

Detailed project information is available on the TGC-1 website.


The Verkhne-Tulomskaya hydroelectric power plant is a part of the Tuloma and Serebryanskaya hydroelectric power plants cascade of TGC-1. The plant is the largest HPP in the North-West of Russia. Four hydroelectric units with 276 MW capacity are installed at the Verkhne-Tulomskaya HPP. The HPP machine room is located underground at a depth of 50 meters.

TGC-1 is the leading producer and supplier of electric and heat energy in the Northwest of Russia. TGC-1 comprises power plants in four constituent entities of the Russian Federation: Saint Petersburg, Republic of Karelia and Leningrad and Murmansk Oblasts.