The document provides an overview of the global renewable energy sector from 2009 to 2018, highlighting significant trends, investments, and growth patterns across various regions and energy sources. It details the shift from fossil fuels to renewables due to increasing energy demands, with a notable decline in wind energy installations in 2013 amidst overall investment reductions. The report emphasizes the potential for significant growth in renewable energy, supported by government policies and investment frameworks across approximately 138 countries.