Japan may still close all its nuclear power plants, economy minister Yukio Edano told Reuters at the sidelines of the IEA meeting in Paris.

“I am certain that we are going to reduce nuclear power generation but whether we are going to reduce it to zero is a separate issue,” he said. The option of entirely pulling out from nuclear generation is still under consideration, he said.

Japan is working on improving its energy efficiency and aims to develop renewables and gas fired plants to replace lost nuclear output, he told a press briefing at Paris.

In the aftermath of the Fukushima incident, Japan’s former prime minister Naoto Kan said in March that nuclear power was no longer worth the risk.

But his successor Yoshihiko Noda has signalled that nuclear power could play a role for decades, although he admits safety concerns could hinder the construction of new reactors.

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