Hydropower made up 66% of Brazil's electricity generation in 2020 - U.S. Energy Information Administration (EIA)

Chapter 6: Energy systems

Energy News Monitor Volume XII; Issue 6

U.S. Energy Information Administration - EIA - Independent Statistics and Analysis

Assessing the impact of hydropower projects in Brazil through data envelopment analysis and machine learning - ScienceDirect

Belo Monte Dam - Wikipedia

International - U.S. Energy Information Administration (EIA)

What percentage of energy consumed in the United States is nonrenewable and renewable? - Quora

Energy Use SpringerLink

EIA: hydropower supplied 66% of Brazil's electricity in 2020