| As an emerging industrial energy city in the western region of Inner- Mongolia , Wuhai depands on the rich mineral resources.In recent years WuHai attracted investors from all over the country to develop high energy and chemical industry vigorously.Wuhai region's largest electricity load soared from 160,000 KW in 1998 to 1.1 million KW in 2007 ,the growth of power supply is from 1.27 billion kwh in 1998 to 68.5 billion kWh in 2007.Within 9 years the electricity consumption maitains an average annual growth rate of more than 22 per cent.With the rapid growth in electricity load, the grid construction has lagged behind it and Wuhai local electricity grid highlights more and more contradictions. This paper was on the basis of Wuhai grid structure, Under Wuhai conditions of the existing grid we find these weak points of wuhai power supply capacity and faced constraints through the power flow calculation. we proposed the rectification views and the direction of long-term power system planning.For the expanding sales of local grid and additional load has effective access,we made a scientific research to keep Wuhai grid with a safe and reliable condition.Meanwhile we made a informative reference about its sustainable development in future. |