Empa explores the potential of repurposing old smartphones for automated building systems to reduce energy consumption in Switzerland’s building sector. These systems, powered by self-learning algorithms, aim to optimize energy usage in buildings, potentially cutting energy needs by up to 30%. Cai’s innovative approach seeks to utilize the computing power of discarded smartphones, diverting them from adding to electronic waste.

With smartphones being replaced every few years and many households owning multiple devices, there’s ample opportunity to harness these resources. Initial tests show promising results, with old smartphones effectively controlling room temperature and managing electrical batteries. However, challenges such as standardization and security remain unresolved.

While the project is in its early stages, it focuses on assessing the longevity and environmental impact of smartphone controllers. By quantifying emissions saved compared to manufacturing new control units, researchers aim to demonstrate the sustainability benefits of this approach. This initiative highlights the potential of circular economy practices in advancing sustainability goals in Switzerland’s building sector.

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