As an important energy production and consumption area, the energy saving and emission reduction performance of thermal power enterprises relates to energy conservation and sustainable development of China’s economy. According to the energy saving policies of power industry, a comprehensive evaluation index system of energy saving and emission reduction performance was built, which contains of energy resource consumption, resource utilization, pollutants emissions and build business efficiency four aspects. The index weights were performed by AHP-entropy weight method considering the expertise and objective information. Meanwhile, an improved Matter-element Extension model was built to evaluate the energy saving and emission reduction performance of thermal power enterprise, in which the domain and standards of maximum degree in traditional model was improved. And an improved correlation function was proposed to instead of traditional correlation function, which is based on both maximum membership degree principle and closeness principles. Finally, the numerical results validate the effectiveness and practicality of the improved model.
Energy is the foundation of economy for China. The economic growth depends on energy, but recent years, the carbon dioxide from energy consumption hinders the GDP to grow. Environment starts to affect economic growth and it becomes a restriction to energy consumption. Energy, economy and environment have formed a new system which is called 3E system, so its practical to study the dynamical relationships among the 3E system. This paper selects annual data from 1970 to 2009 to establish a VEC model and takes the impulse response function and variance analysis to analyze the short-term dynamical relationship of Chinas 3E system, finding that there is at least one co-integration relationship among 3E system in China. Finally, this paper discusses how the energy, economy, and environment affect each other in short term from a quantitative perspective and intends to provide some advices to draft applicable energy policy for China.
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