Research On Cost Per Degree Electric And Critical Distance Comparative Analysis Of Coal Transfer And Power Transmission

China has great demand of coal, the constant increasing stess situation of coal transfer makes the weak coal transfer channel bottleneck of developmental of energy and economic. With the progress of electric transformation and transmission technology, we have multiple choices of energy transfer modes. Energy transfer has two transfer systems:the first is coal transfer system which is made of railway, highway and waterway; the second is power transmission system which is made of pithead power plant an long-distance transmission network. According to development of society and economic, environment protection and change of external factors, we define new basic boundary conditions, and compare coal transfer with power transmission from three aspects which are economic, reliable and environment. Then we get the critical distance and its sensitivity fuction. The suggestion and opinions of modes choice are given in the last.