In this video from NOVA’s Energy Lab, learn about renewable energy sources and renewable energy technologies. A renewable source of energy is so plentiful that it can be considered limitless. Scientists and engineers are working on alternative energy technologies that make use of renewable energy sources (such as solar, geothermal, and tidal energy) and have less impact on the environment. The Sun is our greatest energy resource; solar technologies use its energy directly in the form of light or heat, while other technologies use its energy after it has been converted into another form.

This video is available in both English and Spanish audio, along with corresponding closed captions.