alternative energy

/ɔlˌtʌrnədɪv ˌɛnərdʒi/

/ɒlˈtʌnətɪv ˈɛnədʒi/

Other forms: alternative energies

Definitions of alternative energy

1. noun

   energy derived from sources that do not use up natural resources or harm the environment
   types:

   solar energy, solar power

   energy from the sun that is converted into thermal or electrical energy

   wind generation, wind power

   power derived from the wind (as by windmills)

   type of:

   energy, free energy

   (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs