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Home Science News Technology and Engineering

Hanbat National University Study Reveals Quantum Computing’s Potential to Enhance Smart, Eco-Friendly Homes

October 2, 2025
in Technology and Engineering
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In a groundbreaking advancement at the intersection of quantum computing and energy efficiency, researchers from Hanbat National University in South Korea have pioneered a revolutionary quantum HVAC (heating, ventilation, and air conditioning) control system. This innovation promises to redefine energy management in residential spaces, potentially leading to significant reductions in energy consumption and costs for homeowners. As the demand for efficient energy usage increases, especially in the face of climate change, the application of quantum reinforcement learning (QRL) in HVAC systems stands out as a transformative solution.

HVAC systems account for a substantial share of residential energy use, often leading to high utility bills and increased carbon footprints. Currently employed technologies for optimizing energy management have significant limitations, including issues related to occupancy sensing. These traditional methods often result in extended payback periods, privacy concerns, and inadequate indoor comfort. Real-time occupancy detection and management are vital to ensuring energy-efficient operations in multi-zone residential buildings, yet conventional approaches struggle with complexity and adaptability to varying conditions.

The innovative approach by the team led by Professor Sangkeum Lee utilizes QRL, which is rooted in quantum computing principles. This advanced method allows for quicker learning processes, handling high-dimensional state and action spaces with remarkable efficiency. By leveraging these quantum capabilities, the researchers have illustrated that continuous-variable quantum-enhanced reinforcement learning can significantly enhance the control of HVAC systems, offering a smarter approach to temperature management and energy optimization in homes.

Highlights of the research include the system’s ability to foster real-time adjustments based on operational data, such as occupancy patterns and environmental changes. Unlike traditional machines, which rely on static rules, this novel QRL framework dynamically re-calibrates its control strategies, ensuring optimal performance patterns for power consumption, cost, and indoor comfort levels. The integration of deep learning real-time occupancy detection within the QRL system marks a significant step forward in smart home technologies, making energy management more seamless and effective.

During their experiments, the researchers conducted simulations over three months, analyzing data from 26 households. The results showcased QRL’s impressive performance, achieving energy savings that far surpassed traditional models, including the deep deterministic policy gradient and proximal policy optimization algorithms. Notably, their QRL solution maintained or even improved thermal comfort levels, achieving reductions of up to 63% in power consumption and significant drops in electricity costs.

The advantages extend beyond immediate financial savings. The QRL-based technology is retrofit-friendly, ensuring compatibility with existing HVAC systems and various temperature and occupancy sensors. Not only does this ease the transition for homeowners seeking to modernize their systems, but it also showcases scalability that can accommodate small buildings and even integrated microgrid systems. Such flexibility makes it an attractive option for diverse residential applications without requiring significant investment in new infrastructure.

Furthermore, the researchers emphasize QRL’s robustness in the face of uncertainty. The system can effectively manage disruptions caused by unpredictable factors like weather variations and occupancy fluctuations, ensuring that comfort and efficiency are not sacrificed for energy savings. This resilience positions quantum-enhanced HVAC control as a leading solution in the evolving landscape of energy management technologies.

The potential applications of this groundbreaking research aren’t limited to individual homes. QRL can be harnessed for larger community frameworks, effectively transforming how energy is consumed and managed on a larger scale. Through coordinated systems like grid-interactive buildings and virtual power plants, homes can work collectively to balance energy demands, integrate renewable energy sources, and enhance grid stability. This communal approach to energy management has implications for smart city initiatives and sustainable urban planning efforts.

As quantum computing technology continues to evolve, the researchers predict that the integration of QRL offers promising avenues for further advancements in energy systems, from HVAC to electric vehicles and energy storage solutions. The scalability of their approach hints at a future where automated energy management systems can respond intuitively to real-time data, ensuring homes remain not only comfortable but also aligned with energy sustainability goals.

In conclusion, the application of quantum reinforcement learning in HVAC systems presents an exciting leap forward in energy efficiency practices. The work pioneered by Professor Sangkeum Lee and his team showcases the transformative potential of quantum technologies in everyday life, promising not only reduced energy costs but also a greener, more sustainable environment for future generations. As the hardware associated with quantum systems continues to mature, the implementation of these innovations could soon become commonplace, heralding a new era of intelligent energy management.


Subject of Research:
Article Title: Continuous variable quantum reinforcement learning for HVAC control and power management in residential building
News Publication Date: 1-Sep-2025
Web References: 10.1016/j.egyai.2025.100541
References: 10.1016/j.egyai.2025.100541
Image Credits: Professor Sangkeum Lee from Hanbat National University

Keywords

Quantum Computing, Energy Efficiency, HVAC Systems, Smart Home Technology, Sustainable Urban Planning, Real-time Data, Energy Management, Deep Learning, Reinforcement Learning, Climate Change Solutions, Smart City Initiatives, Quantum Technologies.

Tags: advanced occupancy sensing technologiesclimate change and energy efficiencyenergy management innovationsenergy-efficient residential solutionsHanbat National University researchquantum computing in HVAC systemsquantum reinforcement learning applicationsreal-time energy optimizationreducing residential energy consumptionsmart eco-friendly homessustainable living and technologytransformative HVAC control systems
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