State Grid Corporation of China is the largest electric power enterprise, and invests the construction and operation of power grid as the core business, and provide strong power guarantee for the economy development of society. The composition is mainly in the field operation with green mountains, a clear river flowing in the middle, the white clouds in the sky and a city in the distance. An engineer on the ground is observing with blueprints in hands and a worker is working in the elevated tower. Power grid delivers electricity to tens of thousands of households through great mountains and rivers.