U.S. Department of Energy - Energy Efficiency and Renewable Energy
These animations illustrate technologies and concepts from the Office of Energy Efficiency and Renewable Energy's (EERE) programs. Animations about EERE's work in geothermal energy, hydrogen, industrial energy efficiency, solar energy, vehicle technologies, and wind energy are available here.
Shows how a geothermal plant operates.
Explains how an enhanced geothermal system functions.
Shows how geothermal heat pumps heat your home.
Shows how geothermal heat pumps cool your home.
Shows how a polymer electrolyte membrane (PEM) fuel cell works (PEM fuel cells are the most common type used in light-duty fuel cell vehicles).
Illustrates how multiple safety systems are integrated into the design of hydrogen-fueled vehicles.
See animations from the Solar Energy Technologies Office on its multimedia website.
Explains how hybrid vehicles work by showing energy flow among components during various driving activities.
Shows how wind turbines operate and produce electricity for homes or other buildings.
Shows the progress of installed wind capacity from 1999 to present.