The energy value theory and environmental cost were introduced into the traditional economic load dispatch in power plant,an unit running comprehensive evaluation system was built based on the unit variable cost coal consumption rate related with power coal price ratio and environmental cost.

Approach the pricing mechanism of power coal from going up of power coal price;

In scenes simulation,whether in the near future or in the lag future,CPI rises induced by electricity price rising evidently more than by coal price rising even if the coal and electricity price rise to the same extent Therefore,it is proposed that electricity sells price should be relatively stable and network electrovalence linkage with coal price.

Getting a clear idea of domestic energy prices relations under recent volatile energy supply and demand in China is of great importance to harmonious development of the energy industry and the progress of energy products price reform, as well as the acceleration of the energy conservation and emission reduction policy.