5 Countries That Produce the Most Solar Energy

3. Japan

Installed photovoltaic (PV) power: 74.19 GW

Japan ranks #3 on our list of 15 Countries That Produce the Most Solar Energy given its installed photovoltaic power of 74.19 GW in 2021 when the power source accounted for 9.26% of the nation’s total electricity generation. Given solar power’s increasing economic competitiveness and the need for Japan to reduce carbon emissions, Japan’s government hopes solar capacity will account for 14-16% of its total electricity generation by 2030.