Power ow is basically the ow of active and reactive power. Power ow analysis is used to determine the
steady state operating condition of a power system. In short it is to nd the approximate values of various
bus voltages, their phase angle, active and reactive power ows through different branches, generators and loads under steady
state condition .Heuristic methods are generally referred as experience based techniques for solving problem, learning and
discovery. Heuristics are simple and efcient rules coded by evolutionary processes. In this paper, GA, genetic algorithm, one of
such heuristic algorithms have been used to do the power ow analysis in a simple six, nine, fourteen, twenty six and thirty bus
system.