Smart grid mainly use computers online applications with interfaced controllers for instrumentation, protection and control, which provides faster instrumentation protection and control than the normal hence system efficiency and reliability could be optimized for the working system load angle within stability would provide higher active power with less reactive power, with maximize system efficiency . The computerized load dispatch center connected to all generating stations allows load distribution in most economical ways, with optimized the solar and wind power in systems, the developed microprocessor based load shedding controllers with microprocessor based loads optimization of power transformers are discussed in my papers……