FERC

What is hydropower?

Hydropower uses the energy of moving water to produce electricity. Also known as hydroelectric power, it's been used to generate electricity for over 100 years and currently provides about 10 percent of the country's electricity.

• Is immediately available and renewable;
• Helps conserve fuel; and
• Provides recreation, irrigation, flood control, transportation, and habitat for fish and wildlife.

The Process of hydroelectric generation

Hydroelectricity generation begins at a dam where the power plant converts the force of falling water into electricity. Hydroelectricity is used as either a primary or reserve energy source. In areas that have land for large-scale projects and an abundant water supply, hydropower can be the primary source of electricity. California, the Pacific Northwest, and New England have large numbers of hydroelectric projects. As a reserve source, hydroelectric projects can provide extra power to meet high demands.

Cross Section of a Dam