Under the agreement, a boiler room was built consisting of two natural gas-fired, water-tube boiler sets, with a thermal capacity of 135 MWt each, together with equipment, multi-discipline auxiliary systems and flue gas outlet through a two-pipe chimney with a height of 70 meters. The boiler room is characterized by highly efficient heat production while maintaining high standards of environmental protection. The unit, which serves as a backup heat source for Warsaw, has been equipped with technical solutions that meet the principles and standards of BAT (Best Available Techniques) conclusions.