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Published on: August 14, 2020
A net-zero emissions strategy for China's power sector using carbon-capture utilization and storage
Jing-Li Fan1,2, Zezheng Li1,2, Xi Huang1,2
1Centre for Sustainable Development and Energy Policy Research, School of Energy and Mining Engineering, China University of Mining & Technology, Beijing, 100083, China.
Achieving a near-zero power system can be optimized by including up to 20% abated fossil fuel power with carbon capture. This approach enhances reliability and reduces costs, even during extreme weather events.
Area of Science:
- Energy Systems Engineering
- Climate Change Mitigation
- Power Grid Optimization
Background:
- Decarbonized power systems are essential for climate change mitigation.
- Developing reliable and resilient near-zero emission power systems remains a challenge.
- Carbon capture, utilization, and storage (CCUS) offers a pathway for fossil fuel power in decarbonization.
Purpose of the Study:
- To explore optimal solutions for a reliable and resilient near-zero power system.
- To evaluate the impact of abated fossil fuel power with CCUS on system reliability and cost.
- To analyze the influence of storage duration and transmission capacity on system performance.
Main Methods:
- Development of an hourly power system simulation model.
- Integration of high-resolution geological constraints for CCUS.
- Simulation of 10,450 scenarios across 31 Chinese provinces.
- Analysis of varying electricity storage durations, interprovincial transmission capacities, and shares of abated fossil fuel power.
Main Results:
- Allowing up to 20% abated fossil fuel power can decrease the national power shortage rate by up to 9.0% by 2050.
- A lowest-cost scenario with 16% abated fossil fuel power reduces network investment costs by 2.5% ($16.8 billion).
- Abated fossil fuel power enhances system resilience by mitigating power shortages during extreme climatic events.
Conclusions:
- Incorporating abated fossil fuel power with CCUS is a viable strategy for achieving reliable and resilient near-zero power systems.
- This approach offers significant reductions in power shortages and economic benefits.
- The study highlights the importance of considering CCUS alongside other renewable energy integration strategies.
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