His announcement two weeks ago firmed up the country’s previous climate change commitments as it plays catch-up with pledges made by other major economies.
“Society is moving towards carbon-neutral power,” the Toshiba spokeswoman said, noting the firm has also set its own goal of slashing greenhouse gas emissions by 80 per cent by 2050.
Germany’s Siemens Energy and General Electric of the US have both made similar commitments to withdraw from coal-fired power stations.
Japan, which is a signatory to the Paris climate change agreement, was the sixth-biggest contributor to global greenhouse emissions in 2017, according to the International Energy Agency.
It has struggled to cut carbon emissions after shutting down reactors after the 2011 meltdown at the Fukushima nuclear power plant.
Reliance on fossil fuels like coal increased after that, as public anger over the accident pushed all of the country’s reactors offline temporarily.
Japan’s 140 coal-fired power plants provide nearly a third of its total electricity generation.
Coal is the second-biggest power-generation method behind LNG-fired plants, which provide 38 percent of the nation’s needs.