Which source of renewable energy has experienced the most growth in the last decade?

Solar energy has experienced significant growth over the last decade due to several key factors. Technological advancements have drastically reduced the cost of solar panels, making solar energy much more accessible and affordable for both residential and commercial users. Additionally, there has been a global push towards reducing carbon emissions and increasing the use of clean energy sources, further facilitating the expansion of solar power infrastructure.

Policies and incentives in many regions, such as tax credits and subsidies for solar installations, have also contributed to the increase in solar energy adoption. The versatility of solar technology allows it to be deployed in a range of settings, from large-scale solar farms to small rooftop installations, which has expanded its market reach.

In comparison, while wind energy has also seen considerable growth, particularly in offshore wind farms, solar energy's explosive growth in domestic and small-scale installations has outpaced wind developments over the same period. Other sources like geothermal energy and hydropower have seen improvements but have not experienced the same rapid expansion due to geographical limitations and higher initial investment costs.