The Japanese government will likely clarify the nation's precise energy mix within the next few years, according to Toshimitsu Motegi, the head of Japan’s Ministry of Economy, Trade and Industry (METI).

Prime Minister Shinzo Abe’s Liberal Democratic Party (LDP) wants to restart the nation’s dormant nuclear reactors, which were shut down in response to widespread public opposition to nuclear energy in the wake of the accident at the Fukushima Daiichi nuclear power plant in March 2011.