Tokyo, 17 Dec (ONA) --- Japan aims to generate up to 50% of its electricity from renewable sources by fiscal year 2040, while nuclear power will account for 20%, according to a draft energy policy released today. Renewables' share is set to rise significantly from 22.9% in 2023, exceeding the 2030 target of 38%. Thermal power, particularly inefficient coal plants, will decline to 30%-40% of the mix by 2040. The ...