renewable energy renewable energy is a
term used to describe a group of energy
technologies derived from sources that
do not deplete whether it can be
replenished within a humans lifetime
the most common renewable energy sources
are solar which harnesses the Sun for
energy wind which utilizes the motion of
wind to create electricity hydropower
which uses moving water to generate
power biomass which refers to a large
group of technologies that use living or
recently living organisms and waste to
create energy title title uses the rise
and fall of the tides to create
electricity geothermal which uses the
internal heat from the earth for energy
nuclear energy is not considered a
renewable energy source it is considered
an alternative energy source while
renewable energy accounts for minority
share of the world's energy supply it is
also the fastest growing energy supply
on the planet renewable energy is sought
after because it is a clean source of
energy meaning that it does not directly
produce a greenhouse gas emissions or
air pollutants while renewable energy
sources are better for the environment
they also face several challenges the
main ones being low efficiencies high
capital costs and intermittency that's
renewable energy