Which country had the highest renewable energy capacity in 2021?

China had the highest renewable energy capacity in 2021 primarily due to its significant investments and advancements in renewable technologies, particularly solar and wind power. Over the past decade, China has become a global leader in renewable energy production, supported by government policies that prioritize clean energy development and reduce reliance on fossil fuels. This has resulted in a vast increase in installed capacity, with China accounting for a substantial portion of the world's total renewable energy capacity.

The country's commitment to renewable energy is evidenced by its substantial manufacturing capabilities, which have led to lower costs for solar panels and wind turbines, further supporting its growth in renewable energy generation. Additionally, China's vast geographic area and favorable conditions for renewable energy projects have enabled large-scale deployments that surpass other countries' efforts in this domain.

While the United States, Germany, and India have also made significant strides in increasing their renewable energy capacities, their total installed capacity in 2021 did not reach the levels achieved by China. Therefore, the distinction of highest renewable energy capacity in that year goes firmly to China.