It will first shut down the operations of its unit 1 on 28 August 2011, for a planned 78-day refueling program, reports Reuters.

The company said it also plans to shutdown its 456MW unit 2 by one week starting 26 September 2011, that will last the same amount of time as planned but will now end 20 October 2011.

The shutdown will coincide with the previosly scheduled outage of a similar sized unit 1 block that will be offline for the entire month.