K Satyanarayana, manager, ONGC, Tripura Asset, will inaugurate the event tomorrow, officials said and added the first unit is likely to start generation by August.
ONGC-Tripura Power Corporation (OTPC) is a 726.6 MW gas-based power project at Palatana would cater to the needs of power-deficit areas of north-eastern states of the country.
Assam, Mizoram, Meghalaya and Manipur will buy power from Palatana power plant.
"This is one of the most prestigious ventures in the entire north-east region with an investment to the tune of Rs 9000 crores which is the highest-ever in the state of Tripura. The project, upon implementation, shall make the state power surplus and earn revenue by power wheeling to other states, sources said.
State-run ONGC, major partner of the OTPC power project, would supply natural gas extracted from Tripura.
Sources said, 2.6 million standard cubic metre of gas per day (mmscmd) would be required when it would start generation in full scale and added it would take a few months more to make it fully operational.
Prime Minister Dr Manmohan Singh had laid the foundation stone for the project, Palatana, 60 km from the capital, Agartala in 2005.
Northeast Power Trading Company has already started erecting transmission line from Palatana to Bongaigaon in Assam, ONGC officials said.
