The project will take seven years to start generating electricity, Nuclear Power Corporation of India (NPCIL) Chairman and Managing Director S K Sharma told PTI here.
India and Russia yesterday signed an agreement for the two new reactors for the Kudankulam Nuclear Power Plant (KNPP) on the sidelines of the annual summit between Prime Minister Narendra Modi and Russian President Vladimir Putin.
"The entire project will cost about Rs 50,000 crore. The first unit will be commissioned in 66 months and the second six months thereafter," Sharma said.
"The project will be funded in 70:30 debt-equity ratio (70 per cent debt, 30 per cent equity)," he said.
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The Russian government will lend India USD 4.2 billion to help cover the construction cost.
Sharma said the equity portion of project will either come from NPCIL's own resources or from government.
At the agreement signing ceremony yesterday, Russian President Putin said the first unit of the Kudankulam nuclear power plant was put into operation.
"The most reliable, latest Russian technology was used in its construction. The plant's second unit has also started to generate electricity.
The KKNPP was the outcome of an inter-governmental agreement between the erstwhile Soviet Union and India in 1988. It is the single largest nuclear power station in India. The power station was envisaged to have six units with total capacity to generate 6,000 MW of electricity (1,000 MW each).
Construction of plant's third and fourth units was launched last year and will cost Rs 39,747 crore. While the cost of generating power from first two units is reported at Rs 4.29 per unit, the cost from 3 and 4 is likely to be significantly higher than that.
The Russian built Water-Water Energetic Reactor (VVER) reactor Kudankulam unit 1 and 2 are the largest power generating stations in the country. After all the units (1-6) of the plant are commissioned, the nuclear park will have the power generating capacity of 6,000 MW, boosting significantly the country's nuclear power generation.
The current nuclear power generation capacity of all 22 nuclear power reactors in India is 6780 MW.