China is planning for an installed nuclear power capacity of 86 gigawatts (gW) by 2020, up nearly 10-fold from the 9 gW capacity it had by the end of last year, two people familiar with the matter said.

The revised target for nuclear power is part of the government's efforts to increase the share of alternative energy in the predominantly coal-based energy mix.

The goal, which is part of an alternative energy development roadmap covering 2009-20, seeks to have at least 12 gW of installed nuclear power capacity by 2011, the sources said.