With supercritical power generation, pressure and temperature are kept above the critical point as steam passes from the boiler to a steam turbine. This reportedly allows power to be generated more efficiently and reduces greenhouse gas emissions. The Kudgi plant, which is being constructed in the Bijapur district in Karnataka state, will have a total output of 2,400 MW from three 800 MW units. This makes it the largest of NTPC’s supercritical thermal power plants, and the units are among the largest of their type in India. These also are the largest supercritical units that Yokogawa have ever supplied control systems for. Unit No. 1 is scheduled to start operation in June 2015.
For each of the three units at the Kudgi plant, Yokogawa will supply the CENTUM VP integrated production control system to control the boilers and their auxiliary facilities, DPharp EJA series differential pressure/pressure transmitters, oxygen and liquid analyzers, a CCTV system, a battery-powered UPS system and a paging system. Yokogawa India will be responsible for executing the project, including engineering, installation, commissioning and operator training. This is our fourth control system order for a supercritical coal-fired plant in India, bringing to 10 the total number of systems provided for such facilities in India.
Incorporated as a state-owned company in 1975, NTPC is the largest thermal power producer in India. The company’s shares are publicly traded, and the government holds a 75 percent stake.
Based in New Delhi, Yokogawa India Ltd. is a subsidiary of Yokogawa Electric Corp., Tokyo.