Abstract
The equipment energy efficiency improvement policy (EEEIP) is one of the important measures of energy conservation and emission reduction in various countries. However, due to the simultaneous implementation of variety policies, the effect of the single policy cannot be clearly reflected. In this paper, a method of identification and evaluation of EEEIP was proposed, and the application was verified by analyzing the example of EEEIP in Japan (Top Runner policy, TRP). Firstly, through the factor decomposition model, this paper studied the energy conservation and emission reduction potential of this policy area in Japan. Then, the TRP was identified by using moving windows and correlation analysis, and the impact of specific equipment in TRP was analyzed. Finally, through the calculation of the rebound effect of the carbon footprint (REC), this paper analyzed the energy consumption and emission reduction effects of TRP in the short-term and whole life cycle. It showed that the policy has a good effect in tertiary industry and transportation, while the effect in residential is poor. For life cycle, the TRP of air conditioning and passenger car can bring better CO2 emission reduction effect, but the emission reduction effect of lighting is basically offset.
Highlights
At present, the two major challenges in the global energy transformation stage are the increasing demand for energy and the limitation of carbon emissions
In the BP World Energy Outlook by British Petroleum (BP), the growth of energy demand will be largely offset by the decline in energy intensity in a gradual transformation scenario [2]
In the national level of energy consumption and carbon emissions policy analysis, there is less research involved in specific equipment energy efficiency improvement policy [23]
Summary
The two major challenges in the global energy transformation stage are the increasing demand for energy and the limitation of carbon emissions. Review on Impact Analysis of Energy Efficiency Improvement and Carbon Emission Reduction at National Level. The analysis of influencing factors on energy intensity is mainly concentrated on the national and regional scope [9], or a specific industry and a specific sector [10,11]. Ideal index decomposition method to analyze the relationship between the decreasing trend of energy intensity and the improvement of energy efficiency. O Gandhi [15] studied the energy intensity changes in the state of São Paulo from 1995 to 2012 through factor decomposition and found that the impact of economic activities is gradually increasing. L Cruz [21] studied the impact of structural factors and efficiency factors on energy consumption and carbon emissions in the EU-27 countries. Kim [22] counted the energy consumption of Seoul’s urban water cycle in each stage in 2012 and 2015, and analyzed the changes in energy and carbon emissions during this stage
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