Bharat Heavy Electricals Ltd has commissioned the second module of ONGC Thermal Power Corp's gas-based power plant in Tripura, completing the combined-cycle power project that would use gas from Oil & Natural Gas Corp's adjoining fields in the northeastern state.
Located at Palatana in Tripura's Udaipur district, around 50 kms from the state capital of Agartala, the plant comprises two modules of 363.3 mw each, equipped with fuel efficient advanced gas turbines. State-run BHEL, which won the contract against international competitive bidding, commissioned the first module of 363.3 mw in January 2013.
BHEL has so far commissioned 911 MW of gas-based and hydroelectric stations in Tripura, accounting for 100% of the state's generation capacity. Across the country, it has built nine modules of power turbines in the combined cycle mode, where waste heat from a gas turbine generator is used to run a steam turbine to produce additional electricity.
BHEL has previously commissioned 14 gas turbines in Tripura, but their capacity was limited to a maximum of 21 mw because constraints to transport equipment to project sites. The Palatana project is the largest of its kind in the entire northeastern part of India. BHEL is executing another gas-based project of 100 MW for North Eastern Electric Power Corp at Monarchak in Tripura.
"Setting up the 726 mw power plant at Palatana was a herculean task. The harsh terrain, incessant rains, and inadequate road infrastructure made the conventional mode of transportation from BHEL's works in Hyderabad to the remote site almost impossible," a BHEL statement said. "To overcome logistical constraints, the consignments were transported through multi-modal means of transport, including waterways through Bangladesh under a special agreement with the Government of Bangladesh."
ONGC Tripura Power, sponsored by ONGC, Infrastructure Leasing and Financial Services Ltd and Tripura government, was set up to utilise ONGC's gas reserves in the state. ONGC is unable to fully develop its reserves commercially because of low industrial demand in the region and problems in transporting gas to places where it has a market. The power plant is close to ONGC's gas fields.
Its scope of work for BHEL included design, engineering, manufacturing, supply, erection and commissioning of two Frame 9FA gas turbine generator sets, two steam turbine generator sets and two heat recovery steam generators, along with controls, instrumentation and associated auxiliaries, in addition to complete civil works and supply of spares.