Iraqi super grid power system consists of six generating power plants : Baji, Sad Al-Mosul, Haditha, Mussayab, Nasiriya and Hartha. A Matlab5.3 package has been used to calculate the optimum generation of the system generators which gives minimum losses in comparison with the total losses according to the same data which were recorded in National Control Center. The losses reduction became 30.96% . Gradient method has been employed for the solution of optimal power flow. The partial derivative of active and reactive losses with respect to injected power were used as an indicator on optimum power generation.