India’s PHWRs are derivatives of the CANDU design using natural uranium as fuel. Currently, the Indian PHWR programme consists of 220 megawatt (MW), 540 MW and 700 MW units. At present, India is operating 18 PHWRs with a total installed capacity of 4.46 GW. Four PHWRs of 700 MW rating each, two in Rajasthan and another two in Kakrapar, Gujarat are under construction.
