  This article evaluates the types of typical renewable energy technologies
separately. Switching from fossil-fuel-based technology to green energies is
time-consuming and requires a high investment cost. In addition, the production
of energy by new technology may cause the deactivation of some power plants,
which will result in unemployment and negative economic growth impacts. In this
research, the policies of different countries have been investigated, and
strategies for developing these resources have been proposed.
