The construction of the PGU-420T power unit with an electric capacity of 424.4 MW and a thermal capacity of 195 Gcal/h began in 2011 as part of the investment project of Mosenergo JSC in accordance with the contract for the provision of electric power to the wholesale electricity and capacity market. The functions of the General Contractor for the construction of the power unit were performed by TEK Mosenergo JSC; Mosenergoproekt, branch of TEK Mosenergo JSC, was the General Planner. PGU-420T power unit No. 8 was commissioned on December 1, 2014.
Main equipment of power units: SGT5-4000F gas turbine unit with SGen5-1000А electric generator and SST5-5000 steam turbine with SGen5-100А-2Р synchronous generator manufactured by Siemens, Ep-258/298/45-12.4/3.0/0.4-533/533/234 three-circuit drum waste-heat boiler of horizontal format with natural circulation manufactured by EMAlliance JSC.
Trest SZEM CJSC, in accordance with the contract with TEK Mosenergo JSC, within this project, has installed a waste-heat boiler in the scope of supply of EMAlliance OJSC, as well as installation of auxiliary equipment for the boiler compartment, which was not included in the factory supply, plant pipelines, lifting mechanisms of boiler compartment, process metal structures, stairs, service platforms, primary equipment for instrumentation (root valves, taps, embedded parts, etc.). The total tonnage of the mounted equipment was about 3,800 tonnes.
CHPP-16, located in the Khoroshevo-Mnevniki district, was commissioned in 1955. Its installed electric capacity, without taking into account the new combined-cycle plant, was 360 MW, thermal capacity was 1448 Gcal/hour. The power plant provides heat and electricity to industrial and household consumers in the north-west of Moscow with a population of over 1.5 million people. As a result of the project implementation, the electric capacity of CHPP-16 has more than doubled and amounts to 784.4 MWh. The commissioning of the new power unit made it possible to increase the reliability of power supply to consumers, and also provided additional opportunities for managing the parameters of the electrical power regime of the Moscow power system.