State-run BHEL has commissioned the second 500 MW thermal unit at Marwa Thermal Power Station in Chhattisgarh. "Bharat Heavy Electricals Ltd (BHEL) has successfully commissioned the second 500 MW (megawatt) thermal unit at Marwa Thermal Power Station in Chhattisgarh," the power equipment manufacturer said in a regulatory filing. Located in Janjgir-Champa district of Chhattisgarh, Marwa TPS has been set up by Chhattisgarh State Power Generation Company (CSPGCL). The first unit of Marwa TPS was also commissioned earlier by BHEL, it said. BHEL has been associated with power projects of CSPGCL, (the erstwhile Chhattisgarh State Electricity Board), from the time when the 120 MW Korba TPS extention-1 was commissioned in March 1976. "Significantly, BHEL has a share of 94 per cent in the installed capacity of CSPGCL and has so far commissioned 11 thermal sets and three hydro sets for the state utility. "In Chhattisgarh, BHEL has contributed a total of 12,500 MW to the state's installed power generation, including central and private sector utilities," it said. BHEL further said its scope of work in the contract envisaged design, engineering, manufacture, supply, erection and commissioning of steam turbines, generators and boilers, along with associated auxiliaries and electricals, besides, state of the art controls & instrumentation and electrostatic precipitators. Shares of the company were trading 2.41 per cent down at Rs 135.40 apiece on BSE.