Energy produced from sources that can be renewed indefinitely, for example, hydro-, solar, geothermal, and wind power, as well as sustainably produced biomass.
Source:
FAO
Biomass - Geothermal energy - Traditional biomass
GreenFacts Summary on Forests & Energy:
Deutsch: Erneuerbare Energien (n)
Español: Energía renovable
Français: Energie renouvelable
Nederlands: Hernieuwbare energie