NPCIL begins build on two 700MW nuclear power reactors for RAPP project

Source: Nuclear Power Corporation of India Limited 

The Nuclear Power Corporation of India Limited’s (NPCIL) second pair of indigenously designed 700 megawatt (MW) Pressurized Heavy Water Reactors (PHWRs) –Rajasthan Atomic Power Project- 7&8 – achieved first pour of concrete at Rawatbhata in Rajasthan.

The reactors are scheduled to be completed by 2016-17. Upon completion, 1400 MW of capacity will be added to the Northern Electricity Grid, of which 700 MW will be allocated to the state of Rajasthan.

The 700-MW PHWR was designed by NPCIL by scaling up its 540MW PHWRs that are under successful operation at Tarapur in Maharashtra since 2005. Two more 700 MW PHWRs are also under construction at Kakrapar in Gujarat.

The 700-MW PHWRs have advanced features, including passive safety systems that work on natural principles like gravity, natural convection, etc. and do not need operator intervention or motive power to ensure reactor safety under any state of operation.

There are two independent and diverse systems to shut down the reactor, a ‘Passive Decay Heat Removal System’ to ensure cooling of the reactor core even in conditions of total loss of power, and steel-lined inner containment to contain the entire radioactivity within the reactor building even in a severe accident scenario.

Currently, there are 20 nuclear power reactors with a capacity of 4780 MW in operation and 7 reactors with a capacity of 5300 MW under construction in India. On progressive completion of these reactors, the installed nuclear power capacity will reach 10080 MW by the year 2017. More reactors are planned to take the installed capacity to 20000 MW or more by the year 2020.

NPCIL has an excellent safety record of over 340 reactor-years and will pursue the country’s nuclear power program with enhanced emphasis on safety to set higher benchmarks.

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