Enel Russia has equipped two more power units at coal-fired Reftinskaya power plant with fabric filters

This was announced at “INNOPROM-2015” International Industry Trade Fair in Ekaterinburg.

In May 2015, the company inaugurated the modernized 500 MW Unit 7 unit at Reftinskaya GRES – the first power unit in Russia equipped with fabric filters. The installation of modern fabric filters at 300 MW Units №4 and №5 will lead to a reduction in ash emissions from the units by roughly 99.9%, equivalent to the saving of up to over 30,000 tons of emissions per year for the two units, which together with the Unit 7 allows to save about 40,000 tons of emissions per year for the three retrofitted units at Reftinskaya GRES.

The project is implemented within the framework of Enel Russia’s Environmental Program, as part of the Agreement for Environmental Cooperation signed by Enel Russia and the Government of the Sverdlovsk Region at Innoprom in 2011.

The modernization implied cutting-edge technologies, many of which are used in Russia for the first time. At each of the retrofitted 300 MW power units 14,600 ash-catching bags that achieve the best filtration of the flue gases have been installed replacing the obsolete electrostatic precipitators, which implied dismantling of roughly 3,000 tons of metal works. At Unit 5, the modernization works included installation of low-emission burners, which would allow to significantly reduce NOx emissions. Alongside the environmental impact, the retrofitting works at №4 and №5 have helped to improve reliability and efficiency of the units, as well as considerably decrease the heat rate.

Reftinskaya GRES is the largest solid fuel-fired thermal power plant in Russia. With an installed capacity of 3800 MW it covers 40% of Sverdlovsk Region energy system capacity. The power plant is located 80 km from Yekaterinburg and supplies power to the industrial regions of Sverdlovsk, Tumen, Perm and Chelyabinsk regions.