alternative energy

English Thesaurus

1. energy derived from sources that do not use up natural resources or harm the environment (noun.phenomenon)

hypernym	:	energy, free energy,
definition	:	(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs (noun.phenomenon)

hyponym	:	solar energy, solar power,
definition	:	energy from the sun that is converted into thermal or electrical energy (noun.phenomenon)

hyponym	:	wind generation, wind power,
definition	:	power derived from the wind (as by windmills) (noun.phenomenon)