To diminish the error in the non - equidistant grey model for forecasting , considering the characteristic of the sequence , this model combined neural network and three models of grey theory with energy consumption data , and proposed the combination model of energy consumption 摘要针对非等间距灰色系统预测中存在误差较大的问题,结合序列本身的特点,利用世界能源消费的历史数据,采用3种灰色预测模型与神经网络进行组合优化,建立了灰色神经网络的能源消费量组合预测模型。