The BBC article is misleading. Kan wants to reduce dependence on nuclear energy, and wants 20 percent in the 2020s.
As a result of this policy, dependence on fossil fuels will increase temporarily.
He said nothing about ending nuclear energy, only reducing dependence.
Japan Times, Wed. July 13. "Kan plan set to end nuclear goals" (of reaching 53 percent by 2030.

In another article, Softbank Corp. is proposing solar plants on idle farmland.

The lead article in today's Japan Times says GE proposed alterations to their original plans for Fukushima reactors, but TEPCO would not permit any changes in the original plans.

In the meantime, the opposition may turn out Kan in forthcoming elections.