the international standards mainly iec standards are adopted by the solar energy plants grid connection code and the egyptian transmission grid code this directly contributes to the achievement of sdg by increase substantially the share of renewable energy in the global energy mix after starting its full operation the four substations may be disconnected separately or together this will cause a big problem for the grid operator dispatch centre as there will be a need for standby generation from conventional power plants or from hydro power plants from aswan high dam