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X-WR-CALDESC:Events for Department of Electrical and Computer Engineering (HKUECE) 電機與計算機工程系
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TZID:Asia/Hong_Kong
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DTSTART:20250101T000000
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DTSTART;TZID=Asia/Hong_Kong:20260401T103000
DTEND;TZID=Asia/Hong_Kong:20260401T113000
DTSTAMP:20260509T210656
CREATED:20260327T082548Z
LAST-MODIFIED:20260327T082548Z
UID:115433-1775039400-1775043000@ece.hku.hk
SUMMARY:Seminar on Exploring the Feasible Net-Zero Transition Pathway in China
DESCRIPTION:Abstract\nNet-zero energy transition is projected to accelerate the replacement of fossil fuels with renewables\, leaving system flexibility resources increasingly scarce. Here\, we present a sub-annual energy-environment-economy model with endogenous hourly energy demand profiles and power balance dynamics\, including power dispatch\, storage operations and demand-side response that co-optimises supply- and demand-side flexibility\, to map feasible transition pathways for China. The results show that compared with coarser timeslice representative of common modelling practice\, sub-annual representation tightening flexibility needs with a high variable renewable energy and high electrification energy system. Accounting for temporal variability in supply and demand\, the cost-optimal solution exhibits marginal abatement costs that are over 9% higher\, but incorporating demand-side flexibility measures can mitigate cost growth and delineate least-regret portfolios for reliable\, affordable decarbonization. Incentives for demand-side response\, such as load time-shifting and vehicle-to-grid can reduce investment in pumped hydro by 23% and yield more than a threefold cost-benefit ratio. The study highlights enhanced modelling of temporal dynamics within future energy model development and incentive-compatible market mechanism design for dispatchable resource development. \nSpeaker\nProf. Shu ZHANG\nAssistant Professor\,\nInstitute of Energy\, Environment and Economy\,\nTsinghua University \nSpeaker’s Biography\nProf. Shu ZHANG is an Assistant Professor at the Institute of Energy\, Environment and Economy\, Tsinghua University. He holds a B.S. in Electrical Engineering and a PhD in Management from Tsinghua\, and was a visiting scholar at IIASA (2022-2023). He currently leads multiple national and international projects\, including those funded by the NSFC and National Key R&D Programs. His research focuses on cross-sector synergies across energy\, land\, water\, and air quality systems. By establishing and applying a domestically developed energy-environment-economy model\, he explores integrated low-carbon pathways across the energy\, transport\, buildings\, and industry sectors. With publications in Nature Sustainability and Nature Communications\, Prof. Zhang provides evidence-based insights to support strategic policymaking in low-carbon transitions. \nOrganiser\nProf. Yi WANG\nDepartment of Electrical and Computer Engineering\,\nThe University of Hong Kong\n\nAll are welcome!
URL:https://ece.hku.hk/events/20260401-2/
LOCATION:Room CB-601J\, 6/F\, Chow Yei Ching Building\, The University of Hong Kong
CATEGORIES:Highlights,Seminar
ATTACH;FMTTYPE=image/jpeg:https://ece.hku.hk/wp-content/uploads/2026/03/1280-5.jpg
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DTSTART;TZID=Asia/Hong_Kong:20260401T140000
DTEND;TZID=Asia/Hong_Kong:20260401T150000
DTSTAMP:20260509T210656
CREATED:20260326T085916Z
LAST-MODIFIED:20260326T085916Z
UID:115422-1775052000-1775055600@ece.hku.hk
SUMMARY:Seminar on Can Industrial Overcapacity Enable Seasonal Flexibility in Electricity Use?
DESCRIPTION:Abstract\nIn many countries\, declining demand in energy-intensive industries such as cement\, steel\, and aluminum is leading to industrial overcapacity. Although industrial overcapacity is traditionally envisioned as problematic and resource-wasteful\, it could unlock energy-intensive industries’ flexibility in electricity use. Here\, using China’s aluminum smelting industry as a case study\, we evaluate the system-level cost-benefit of retaining energy-intensive industries overcapacity for flexible electricity use in decarbonised energy systems. We find that overcapacity can enable aluminum smelters to adopt a seasonal operation paradigm\, ceasing production during winter load peaks that are exacerbated by heating electrification and renewable seasonality. This seasonal operation paradigm could reduce the investment and operational costs of China’s decarbonised electricity system by 23-32 billion CNY/year (11-15% of the aluminum smelting industry’s product value)\, sufficient to offset the increased smelter maintenance and product storage costs associated with overcapacity. It may also provide an opportunity for seasonally complementary labour deployment across the aluminum smelting and thermal power generation sectors\, offering a potential pathway for mitigating socio-economic disruptions caused by industrial restructuring and energy decarbonization. \nSpeaker\nMr. Ruike LYU\n5th year PhD. Candidate\,\nDepartment of Electrical Engineering\,\nTsinghua University \nSpeaker’s Biography\nMr. Ruike LYU received his bachelor’s degree in Electrical Engineering from Tsinghua University\, Beijing\, China\, in 2021\, and is currently pursuing a PhD degree there. He was a one-year visiting scholar at Princeton University. His research interests include demand-side flexibility from electric vehicles\, commercial buildings\, and industrial loads. He has been recognised for his work with several awards\, including Best Paper at multiple conferences such as CEEPE 2024\, PESGM 2025\, and EECT 2025. He also received the Best Presentation Award at the IEEE PES PhD. Dissertation Challenge in 2025. \nOrganiser\nProf. Yi WANG\nDepartment of Electrical and Computer Engineering\,\nThe University of Hong Kong\n\nAll are welcome!
URL:https://ece.hku.hk/events/20260401-1/
LOCATION:Room CB-601J\, 6/F\, Chow Yei Ching Building\, The University of Hong Kong
CATEGORIES:Highlights,Seminar
ATTACH;FMTTYPE=image/jpeg:https://ece.hku.hk/wp-content/uploads/2026/03/1280-4.jpg
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