Controling coal capacity and inventory level with the GDP development

To stabilize the coal production and adjust supply and demand, this paper combines the coal production and research of the linear relationship between the GDP and put forward reasonable coal capacity regulation range of research to alleviate the current inventory pressure and related economic problems. From micro level by using demand forecasting technology, the paper gives total economic output prediction of each coal base, and establishes a mathematical model to calculate the confidence interval of the coal production, and puts forward the idea of the coal production control and related methods. According to the analysis of the capacity of coal supply and demand model and the calculation results of actual case, the paper concludes that coal total economic output should fall within the scope of the confidence interval as a reasonable capacity of the conclusion of evaluation standard. By using this standard,each coal base can reduce the current coal pressure coal inventory excess capacity, so that the capacity of coal supply and demand can be controlled to the direction of balanced development. This paper can provide theoretical guidance for the coal energy sustainable development of our country.