  In this paper, estimation of optimal capacity and location of installation of
wind, solar and fuel cell sources in distribution systems to reduce loss and
improve voltage profile, by considering load changes, is carried out with
Lightning Search Algorithm (LSA). Studies have been conducted on the standard
IEEE 33 bus power system in two scenarios. In the first scenario, study is done
with the assumption that the load remains constant throughout the project
period and in the second scenario with the load growth. The results of the
simulation, indicated that the puissance of load changes on distributed
generations (DGs) placement studies. Also, the results confirm the performance
of the proposed algorithm in reducing the objective function.
