Our city is evolving into a smart city with a network of 1 trillion sensors. Despite the high-cost shortcomings, the smart cities' sensors have continued using batteries. However, these batteries are not sustainable energy sources. Moreover, it is practically impossible to repeatedly replace the batteries connected to sensors on such a large scale. The increasing use of batteries is detrimental to our environment, not only in smart cities but also in our homes, where IoT sensors are rising. Therefore, we must develop regenerative solutions.
I propose a system that converts wasted thermal energy into electrical energy as an effective solution. I suggest applying this 'thermal energy converting system' to everyday items such as a mug, a mouse, earphones, and a thermometer. These products can naturally store electricity during their use. For instance, the thermal energy from hot drinks poured into the mug can be converted into electrical energy and stored in a portable battery located in the mug handle. Everyday activities that unintentionally generate thermal energy are sufficient to charge a small battery. While I present four representative product lines here, there is room for more variety. This idea aims to reduce annual battery consumption and waste, benefiting the environment.
Addressing environmental issues requires awareness and actionable solutions. Utilizing thermal energy presents an opportunity to develop a sustainable energy source and contribute to the environment. Consumers of these products(a mug, a mouse, earphones, and a thermometer) can take pride in their contribution to environmental preservation. Additionally, transitioning from energy consumers to producers can yield economic benefits by reducing energy costs. Of course, further research is needed to explore the viability of using thermal energy as a replacement for batteries in smart cities. This concept introduces thermal energy as a new concept for a regenerative energy source to replace batteries.