Science glossary film: Renewable energy

Energy from natural resources that replenish or renew themselves, or we can consider inexhaustible, such as sunlight, wind, tidal and wave power. The quantity of energy available from such sources is enormous, but extracting it and delivering it where and when it's needed can be a huge challenge.

The quantity of energy available from such sources is enormous, but extracting it and delivering it where and when it's needed can be a huge challenge.