Fulfilled Projects

TGC-1 JSC is one of the largest investors in the Russian energy sector.

Our investment program includes construction of new, up-to-date facilities, technical upgrade of the existing equipment, and introduction of automatic process control systems to gain a competitive advantage, meet future consumer demand, and minimize environmental impact.

Our heat to cities. Our energy to Russia

In 2006 TGC-1 embarked on the first investment project. The company commissioned a new power unit at Pravoberezhnaya CHP in St. Petersburg. In fact, it was a new power plant and the first completed project of a large-scale modernization program for Russian power generating facilities.

In 2007 the company began a unique project of full-scale reconstruction of two power plants of the Vuoksa HPPs Cascade in Leningrad Region. According to plan 8 hydraulic units were to replace and increase the installed capacity of the Cascade by almost 30%.

In 2007-2010 TGC-1 put in operation new hydraulic units at Volkhovskaya HPP (Leningrad Region) and Khyamekoski HPP (Republic of Karelia), new turbine units at Avtovskaya, Vyborgskaya, and Vasileostrovskaya CHPs in St. Petersburg, and a wide range of modern boiler and transformer equipment.

In May 2010 Red October CHP that is first thermal power plant built under the GOELRO plan was closed after more than 80 years of working. This is the first time in Russia when an entire plant, not just some units, was decommissioned.

Modernization of Iovskaya HPP

Completion of modernisation: November 27, 2014

Installed electric capacity: 96 MW.

On November 1, 2012, the project of hydraulic unit modernisation at the Iovskaya HPP of the Nivskiye HPP Cascade of JSC TGC-1 was started.

According to the plan, the company is replacing two hydraulic units of the power plant. Propeller type impellers will be replaced with adjustable blade type impellers, that are more efficient. The modernisation will raise the efficiency and reliability of the hydraulic units and extend their operation range, which will allow to adjust load more smoothly and quickly in accordance with the regional energy system’s needs.

The first unit at the Iovskaya HPP was installed in 2013, and the second one will be installed in 2014.

In summer 2013, concrete casting for the impeller chamber was completed, and new stator winding was installed. In October 2013, the assembly of APCS cabinets was completed. The company started assembly of the impeller of the hydraulic turbine No. 1.

On January 21, 2014, the first modernised hydraulic unit with a capacity of 48 MW was put into operation at the Iovskaya HPP.

In May 2014, the turbine impeller for the hydraulic unit No. 2 was supplied to the Iovskaya HPP and its assembly was started.

On August 20, 2014, startup tests of the second hydraulic unit No. 2 started at the Iovskaya HPP.

On September 13-16, 2014, comprehensive testing of the hydraulic unit No. 2 of the Iovskaya HPP was successfully completed.

The project has made it possible to install high class machinery that meets all the environmental requirements and modern hydraulic construction technologies.


·         Improved reliability of the plant’s operation and power supply to consumers

·         Extension of the operation range (the new turbines enable the use of 30% to 100% of the nominal capacity)

·         Greater efficiency of the hydroelectric generating units

·         Prompt load adjustment in accordance with the energy system’s needs

·         Automation of operation

·         Rational use of the Iovskaya HPP’s water reservoir

The contractor general is Andritz Hydro AG (Austria). The design company is UkrHydroProject.


Vuoksa HPP Cascade

Fulfilled on December 18, 2013

Reconstruction of the Vuoksa HPPs Cascade began in May 2007, when TGC-1 and Power Machines JSC signed a contract for a full-scale upgrade of equipment to replace all eight hydraulic units at Svetogorskaya and Lesogorskaya hydro power plants.

The objectives of the investment project are:

  • Replacement of obsolete and overage equipment
  • Reduction in operating costs through the use of state-of-the-art equipment and control systems
  • Increase in profits through sales of added electric power, including export sales.

Pravoberezhnaya CCGT Unit 450 MW

Fulfilled on November 23, 2012

CCGT-450 of Pravoberezhnaya CHP is the third (after commissioning of CCGT-450 at Yuzhnaya CHP and two CCGT-180 at Pervomaiskaya CHP) large-scale project for building state-of-the-art combined cycle gas turbine units implemented over the recent years in Saint Petersburg.

Commissioning of the new gas turbine unit at Pravoberezhnaya CHP considerably increased the reliability and quality of heat supplies to the city's southeast and secured electricity and heat reserves for future demands of the adjacent areas under development. Besides, the new gas turbine unit reduces the load on substations of the energy ring, thus increasing the reliability of the city power network.

Pervomayskaya CCGT Units

Fulfilled in January, 2012

The project to reconstruct the Pervomayskaya CHPP is essentially construction of a new plant as part of the two CCGTs installed with an electrical capacity of 180 MW and a thermal output of 119 GCal/hour each.

2007-2009 – construction of the new energy unit on the basis of two CCGT-180.

October 2010 – integrated testing of the CCGT-180. 1 January 2011 – the new CCGT-180 begins to supply electricity to the region’s energy system, and on 26 January 2011 the CCGT began operating in a system of combined production of light and heat.

1 March 2011 – commissioning of the first energy-generating unit of the CCGT-180. On 29 September 2011, the second energy-generating unit of the CCGT-180 of the Pervomayskaya CHPP began operating at maximum capacity. The construction, installation and commissioning of the main equipment of the second energy-generating unit was completed.

In January 2012, the new energy-generating unit of the Pervomayskaya CHPP within the two CCGT-180 began supplying power onto the energy market.


Implementation of the project ensured that the electricity deficit in St. Petersburg and Leningrad Oblast was covered, as well as replacement of energy-inefficient equipment from the 1950s, and a lowering in the environmental pressure on the atmosphere in St. Petersburg and on the water of the Baltic Sea.