|Kakrapar Atomic Power Station|
|Commission date||6 May 1993|
|Operator(s)||Nuclear Power Corporation of India|
|Nuclear power station|
|Reactor type||Units 1 & 2: IPHWR-220 Unit 3: IPHWR-700|
|Cooling source||Ukai Dam, Tapti River|
|Units operational||2 × 220 MW|
1 × 700 MW
|Units under const.||1 × 700 MW|
|Nameplate capacity||1034 MW|
|Capacity factor||38.25% (5 year global average of 2 older units)|
|Annual net output||1354 GW·h|
Phase I consist two 220 MW pressurised water reactor with heavy water as moderator (PHWR). KAPS-1 went critical on 3 September 1992 and began commercial electricity production a few months later on 6 May 1993. KAPS-2 went critical on 8 January 1995 and began commercial production on 1 September 1995. In January 2003, CANDU Owners Group (COG) declared KAPS as the best performing pressurised heavy water reactor.
KAPS-2 was shut down after a coolant channel leak in July 2015 and a similar issue forced the shutdown of KAPS-1 in March 2016. After a replacement of coolant channels and feeder tubes, KAPS-2 attained criticality in September 2018. Maintenance on KAPS-1 was completed ahead of schedule and was brought to operation on 19 May 2019.
The construction costs were originally estimated to be ₹382.52 crore; the plant was finally finished at a price of ₹1,335 crore.
In 2007 the Indian government approved outline plans to build two indigenously-designed IPHWR-700 reactors, with two sister reactors a little later at Rajasthan Atomic Power Station. In 2009 approval was confirmed, and site preparation was completed by August 2010. First concrete for Kakrapar 3 and 4 was in November 2010 and March 2011 respectively with operation originally expected by early and late 2018 respectively.
The project over-ran largely due to tuning of the IPHWR-700 design and slow delivery of supplies. Operation is now expected by October 2020 and September 2021 respectively. Unit 3 achieved first criticality on 22 July 2020.
Unit 3 was connected to the grid on 10 January 2021.
|Unit||Type||Gross MW||Construction start||Operation start||Notes|
|Kakrapar 1||IPHWR-220||220||1 December 1984||6 May 1993|||
|Kakrapar 2||IPHWR-220||220||1 April 1985||1 September 1995|||
|Kakrapar 3||IPHWR-700||700||22 November 2010||September 2021|||
|Kakrapar 4||IPHWR-700||700||March 2011||2021 (planned)|||