Turow power plant located in Bogatynia, Poland, is being added with a 490MW supercritical lignite-fired generating unit.

PGE Elektrownia Turow, a subsidiary of state-owned Polska Grupa Energetyczna (PGE), owns and operates the Turow power plant.

Operational since 1962, Turow is one of the oldest coal-fired plants in Poland. The plant currently has an installed capacity of 1.5GW, which will be increased to approximately 2GW after completion of the ongoing expansion project by 2020.

Construction of the $870m new generating plant at Turow has been underway since December 2014.

Named as Turow 11, the new unit is claimed to be the world’s first low-emission and high-efficiency lignite-fired plant to comply with the EU’s Best Available Techniques Reference (BREF) standards.

Turow 11 plant details

The new generating unit of the plant will be equipped with a supercritical once-through tower type lignite-fired boiler, a double-flow 48-inch condensation turbine with a 603MVA generator, a boiler flue gas heat recovery system, a wet flue gas desulphurization (FGD) system, and a natural draft cooling tower.

The 120m-tall single reheat boiler will be capable of operating at 271bar steam pressure and 610°C steam temperature.

MHPS is the supplier of the boiler, turbine, generator as well as the emission control equipment for the new plant. It supplies NOx removal equipment, electrostatic precipitators, and the FGD equipment.

Turow 11 is expected to provide 43% net thermal efficiency, which is considered to be the world’s highest for a lignite-based power plant.

Turow power station history and modernization details

The Turow power station originally included ten 200MW generating units commissioned between 1962 and 1971. All the units were equipped with pulverized coal-fired boilers.

Four out of the ten original units were decommissioned in different stages, while the remaining were refurbished and replaced with circulating fluidized bed (CFB) boilers from Foster Wheeler (now Sumitomo SHI FW) and advanced steam turbines from ABB (now Alstom) in three phases duringfrom 1994 andto 2004.

Three of the six replaced units of the plant have 262MW generation capacity, while the remaining three are of 235MW capacity.

One of the original 200MW units of the plant was damaged in December 1998 due to the collapse of its cooling tower in a major explosion, which led to the subsequent refurbishment of all cooling towers and chimneys of the power station.

Bilfinger retrofitted three of the existing units of the Turopower plant with new flue gas desulfurization systems in July 2016.

GE secured orders worth €40m ($45.4m) to upgrade three 50WT20H-100 generators and three 13CK230 steam turbines of the existing Turow power facility in January 2016.

Coal supply for Turow power plant

The Turow power plant uses coal from the Turow coal mine, owned by PGE and located near the plant site.

Turow is a large open-pit mine with an average annual coal production more than 20Mt and represents one of the biggest lignite reserves in Poland.

Contractors involved

A consortium of Mitsubishi Hitachi Power Systems Europe, Tecnicas Reunidas, and Budimex was awarded an $870m turnkey engineering, procurement, construction and installation (EPCI) contract for the new power unit at Turow plant in July 2014.

MHPS, with 55.4% share of the contract value, provides the supercritical boiler, lignite mill, burner technology, air quality control system (AQCS) and boiler flue gas heat recovery system, along with the turbine generator set and turbine plant auxiliaries for the new unit.

Tecnicas Reunidas and Budimex, each holding a 22.3% share of the contract value, are responsible for the civil engineering and construction works, as well as the construction and installation of other electromechanical components of the new unit.

MHPS subcontracted Vallourec for the supply of boiler tubes for the new power unit in January 2016.

German Clyde Bergemann was subcontracted for the supply of the boiler cleaning and efficiency systems.

CEMEX Poland was subcontracted by Technical Reunidas and Budimex for supplying concrete for the construction of the new unit.

Elemont was subcontracted for the complete road and interior lighting system of the new unit at Turow power plant.