Explore the fundamentals of hydroelectric power in this comprehensive lecture from Stanford University's Understand Energy course. Presented by David Freyberg, Associate Professor of Civil and Environmental Engineering and Senior Fellow at the Woods Institute for the Environment, this 81-minute session covers a wide range of topics. Delve into the power of flowing water and energy transformation, trace the history and context of hydroelectric power, and examine energy systems and hydroelectric facilities. Learn about hydropower operations, understand its features and limitations, and investigate the impacts and issues associated with this renewable energy source. Conclude by exploring the future prospects of hydroelectric power. Recorded on November 14, 2022, this lecture provides a thorough overview of hydroelectric power's role in the energy landscape.