Environmental Efficiency Analysis of China Electric Power Industry Based on the DEA cross Model

The power industry is an important part of the high energy consumption industry, which has a great impact on the environment. Therefore, this paper establishes a environmental efficiency analysis model of the power industry based on the data envelopment analysis (DEA) cross model. Though the energy efficiency data of the power industry in 30 provinces in China from 2011 to 2014, the environmental efficiency model is built and analyzed through the DEA cross evaluation model. The results show that the environmental efficiency of the power industry based on the basic model of the DEA cross model is almost all effective in the four years of research. But under the cross-evaluation model of the DEA cross model, the environmental efficiency of each province as a whole is improved year by year, so there is still much room for energy efficiency improvement.