Japan will close the majority of its aging coal-fired power plants over the next decade as it looks to cut down on carbon emissions and shift toward using more renewable energy, government sources said Thursday.

Resource-poor Japan relies on coal for about a third of its energy needs. Of the 140 coal-fired generators in the country, 114 are older and considered to be low efficiency. The government aims to take about 100 of them offline in stages by fiscal 2030.