Public Joint Stock Company Territorial Generating Company No. 1 

Public Joint Stock Company 'Territorial Generating Company' No.1 (TGK-1) operates as a major energy provider, generating both electrical and thermal power across Russia's North-West region. The company harnesses both hydroelectric and thermal sources to produce electricity. It manages a portfolio of 52 power generation stations located in St. Petersburg, the Republic of Karelia, Leningrad Oblast, and Murmansk Oblast. As of May 14, 2021, TGK-1 commanded an installed electrical capacity of 6.9 gigawatts and a thermal capacity of 13.5 thousand gigacalories per hour. Its sales encompass the Russian wholesale electricity market, in addition to exporting power to Finland and Norway. Founded in 2005 and headquartered in St. Petersburg, Russia, the company transitioned from its previous name, Joint Stock Company Territorial Generating Company No.1, to its current designation in August 2016. TGK-1 is a subsidiary of Gazprom Energoholding LLC.