Japan is considering boosting the proportion of nuclear energy generated to 22 percent of all electricity generation in 2030 despite public opposition, a report said yesterday. The Japanese Ministry of Industry is also considering more than doubling the proportion of renewable energy such as solar and wind power to up to 25 percent in 2030, from 10.7 percent in 2013, the Nikkei business daily reported. All 48 nuclear reactors remain offline since the 2011 triple core meltdowns at the Fukushima Daiichi plant that was triggered by a huge earthquake and the subsequent tsunami. Regulators have so far green-lighted the restart of four nuclear reactors - two in central Japan and two in Kyushu - under updated regulations. Nuclear-generated electricity accounted for about 30 percent of the Japan's output before the Fukushima disaster. Japanese power companies have depended more on fossil fuel imports ever since.