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How do different types of energy technological progress affect regional carbon intensity? A spatial panel approach
Wei Gu1, Zhongzhu Chu1, Chen Wang2
1School of Economics and Management, University of Science and Technology Beijing, Beijing, 100083, China.
Technological progress in energy conservation and emission reduction effectively lowers provincial carbon intensity in China. Both renewable energy technology patents and ECERT patents show spatial spillover effects, reducing carbon intensity across provinces.
Area of Science:
- Environmental Science
- Economics
- Energy Policy
Background:
- Carbon intensity remains a critical environmental concern in China.
- Technological innovation is a key driver for mitigating carbon emissions.
- Understanding the spatial effects of different technologies is crucial for effective policy.
Purpose of the Study:
- To investigate the spatial effects of renewable energy technology (RET) patents and energy conservation and emission reduction technology (ECERT) patents on China's provincial carbon intensity.
- To analyze the spatial dependence and spillover effects of these technologies.
- To provide policy recommendations for reducing carbon intensity.
Main Methods:
- Utilized a provincial panel dataset for 30 Chinese provinces from 2005-2017.
- Employed the spatial Durbin model to assess spatial correlations and spillover effects.
- Analyzed the direct, indirect, and total effects of technological progress on carbon intensity.
Main Results:
- Confirmed significant spatial correlation in carbon intensity among Chinese provinces.
- ECERT patents effectively reduce a province's own carbon intensity, while RET patents' direct effect is not significant.
- Both RET and ECERT patents exhibit negative indirect and total effects, indicating technology diffusion.
- Renewable energy technology patents can reduce local carbon intensity by optimizing energy structure but may increase surrounding provinces' carbon intensity.
Conclusions:
- Energy conservation and emission reduction technologies are more effective in directly reducing provincial carbon intensity.
- Technological progress in both areas has positive spatial spillover effects, reducing overall carbon intensity.
- Policy should consider the spatial heterogeneity of technological impacts, particularly for renewable energy technologies.
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