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.

Centralnaya CHPP

The Centralnaya CHPP is a key element of the city’s power system and basically the only electricity source for the historical center. The power plant enables the operation of the metro, the city government and its agencies, and a number of hospitals and schools. It is a source of heat for industrial enterprises and residential and public buildings of the Centralniy, Admiralteyskiy, Moskovskiy, and Frunzenskiy districts of St. Petersburg with a population of over 500,000 people.

A sweeping upgrade of the power plant is a priority project of the company’s investment program for the period until 2017.

The upgrade project includes construction of 110/6 kV indoor switchgear at the power plant No. 2 (PP-2), construction of 40 MW of new generating capacity for two gas turbine units at the premises of the power plant No. 1 (PP-1), development of a new capacity output scheme with indoor switchgear construction at PP-1, decommissioning of obsolete capacities at the power plant No. 3 (PP-3), and renewal of heat generating capacities at the power plant No. 2.

The major renovation and upgrade of the main and supplementary equipment are taking place simultaneously at all the three power plants (PP-1, PP-2, PP-3) of the Centralnaya CHPP.

Power plant No. 2: construction of 110/6 kV indoor switchgear

Pursuant to the terms of reference that had been approved by OJSC SO UES, a collective capacity output scheme of the power plant No. 1 of the Centralnaya CHPP and an external electricity supply scheme of the power plant No. 2 were developed.

The project includes step-by-step replacement of old equipment of the outdoor switchgear, construction of an indoor switchgear building with modern equipment of the cells of a 110/6 kV comprehensive switchgear with SF6 gas insulation, which is designed for short circuit currents of up to 50 kA, and 6 kV feeder switchgear.

In 2012, construction of the 110/6 kV indoor switchgear started at the power plant No. 2.

In July 2013, installation of the cells of the 110 kV comprehensive switchgear with SF6 gas insulation to their designed locations was completed.

In September 2013, installation of cable metal structures at 110 and 6 kV cable racks was completed. 110/6 kV transformers were sealed in transformer cells.

In December 2013, installation of state-of-the-art equipment of the 110/6 kV indoor switchgear cells with SF6 gas insulation, which is designed for short circuit currents of up to 50 kA, was completed. Finishing operations are in process.

In the first half of 2014, startup operations were performed at the indoor switchgear.

On June 17, 2014, the 110/6 kV indoor switchgear at the power plant No. 2 of the Centralnaya CHPP was put into operation.

Power plant No. 1: construction of gas turbine installations at the CHPP

The project includes construction of new capacities at the power plant No. 1 of the Centralnaya CHPP consisting of two new power units with gas turbines having an electric capacity of 50 MW each and a total heat capacity of 120 Gcal/hour.

The goal is solving the emergency and hear shortage problem in the historical center of St. Petersburg. To date, an investment project implementation agreement has been made with Mezhregionenergostroy LLC. The company designs project documents, and the selection of main process machinery is in process.

The construction site is being made ready; a locomotive depot, a supplementary building, and a garage building that were within the construction site have been demolished.

Effects of the Centralnaya CHPP upgrade

Construction of modern generating and electric facilities at the Centralnaya CHPP will enable the city to:

·         close a number of old environmentally unsafe boiler facilities,

·         decommission inefficient obsolete capacities,

·         minimize the risk of emergency and failure,

·         automate the generation process control systems,

·         ensure stable operation of the St. Petersburg energy circle,

·         enable connection of new consumers,

·         solve the energy shortage problem for the historical center,

·         reduce pollution due to highly efficient capacities that use environmentally friendly gas fuel with low nitrogen oxide emission and high efficiency.

In November 2014, assembly of metal structures was completed and wall panels of the 110 kV indoor switchgear building and the main building were being installed at the site of PP-1 of the Centralnaya CHPP. Siemens SGT-800 gas turbine plants with supplementary equipment were delivered.

Pervomayskaya CHPP

The project of the Pervomayskaya CHPP reconstruction consists of several stages:

1.     Construction of a new power-generating unit as part of two CCGTs (combined-cycle gas turbines) with a capacity of 180 MW and a heat output of 119 Gcal/h each. Construction duration: 2007-2011. In January 2012, the new power-generating unit as part of two CCGTs-180 at the Pervomayskaya CHPP started supplying power to the electricity market.

2.     Construction of the Integrated Auxiliary Building (IAB). The construction project for IAB and FOOF (fuel oil and oil-fired facilities) started in February 2013. The new auxiliary building combines hot water boilers and steam boilers, 6 kV factory-assembled switchgear, water treatment equipment (heating network makeup and steam boiler makeup).

The construction of the new emergency fuel oil and oil-fired facilities will make it possible to receive and ship liquid fuel and fuel oil using rail and motor transport, as well as provide storage of emergency diesel reserve for the needs of emergency fuel supply of gas turbines from units Nos. 1 and 2 of CCGT. Moreover, the project includes the construction of fuel oil supply tanks for boilers of IAB under construction.

The project will ensure the replacement of energy inefficient equipment of the 1950s and allow reducing the environmental load on the St. Petersburg airshed and the water basin of the Baltic Sea.

In September 2013, piles were hammered under the building frame of the Integrated Auxiliary Building and the auxiliary equipment of steam boilers.

In December 2013, the construction site saw the completed foundations for hot water boilers and steam boilers, as well as the installation of the accumulator tank No. 3. The installation of the accumulator tanks Nos.  2 and 4, as well as the construction of the building frame for IAB are underway.

In February 2014, the first steam boiler for the Integrated Auxiliary Building (IAB) was installed.

In May 2014, the metal frame for the IAB building was installed in the axes 1-5 and 6-14. The foundations were built for draft systems of hot water boilers, and the chimneys of hot water boilers and steam boilers.

In June 2014, all accumulator tanks, overflow tanks and sealant tank were mounted, and preparatory work was made for hydraulic testing of tank facilities. The installation of metal frame for the main building of IAB at the Pervomayskaya CHPP and hot water boilers 3 and 4 is almost completed, whereas the installation of steam boilers continues. The main lifting equipment for the main building of IAB.

In August 2014, the foundations for industrial pipeline for connection of hot water accumulator tanks.

In September/October 2014, the IAB construction site at the Pervomayskaya CHPP saw the installation of tank facilities of the water treatment plant and the work on the anti-corrosive protection of the inner surface of the accumulator tanks.

The electric installation work of grounding for IAB started. In October, the accumulator tanks Nos. 1-5 were installed. The hydraulic testing of accumulator tanks and overflow tanks was completed. 

In November 2014, the IAB construction site at the Pervomayskaya CHPP   saw the continuation of hot water boilers and steam boilers installation. The foundations of the transition gallery between IAB and the power-generating units of CCGT.

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, after signing 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.