The electricity sector has learned from Shanghai, after three decades of power construction, the Shanghai power grid has more than 100 substations of 220 kV, the highest summer peak power capacity has reached 23 million kilowatts, a truly large city grid; in Shanghai load density of 3538 kilowatts / sq km, is the economically developed cities, Tokyo, Japan twice. State Grid Power Company now has the city of Shanghai power grid able to withstand playing a load of 24 million kilowatts of electricity a strong grid. "Eleventh Five-Year" period, National Grid will invest 73.5 billion yuan on the Shanghai power grid.