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Exploring the trade-offs between electric heating policy and carbon mitigation in China
Jianxiao Wang1,2, Haiwang Zhong3, Zhifang Yang4
1State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Department of Electrical Engineering, Tsinghua University, 100084, Beijing, China.
Nature Communications
|November 28, 2020
Summary
China's Electric Heating Policy (EHP) improved air quality but significantly increased carbon emissions from power generation. This study quantifies the rise in CO2, offering pathways for low-carbon electric heating solutions.
Area of Science:
- Environmental Science
- Energy Policy
- Climate Change
Background:
- China's 2015 Electric Heating Policy (EHP) aimed to replace in-home combustion with electricity for rural heating.
- The EHP led to improved air quality for millions but increased electricity demand and carbon emissions.
Purpose of the Study:
- To quantify the carbon emissions impact of China's EHP on rural residential heating.
- To analyze the projected carbon emissions from 2015 to 2030.
- To identify pathways for achieving low-carbon electric heating.
Main Methods:
- Development of a theoretical model to calculate carbon emissions.
- Quantification of CO2 emissions from power generation and rural heating sectors.
- Techno-economic analysis of proposed low-carbon solutions.
Main Results:
- In 2015, EHP implementation in 45-55% of Northern China's rural residents could emit an additional 101.69-162.89 megatons of CO2.
- Incremental carbon emissions were projected to reach 130.03-197.87 megatons in 2020.
- Emissions growth is expected to slow by 2030 due to urbanization, dropping to 119.19-177.47 megatons.
Conclusions:
- China's EHP significantly increases carbon emissions, despite air quality benefits.
- Urbanization will moderate the growth of EHP-induced carbon emissions.
- Practical pathways for low-carbon electric heating require further investigation and implementation.
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