Environmental and Economic Considerations

In alignment with the UN’s Sustainable Development Goals (SDGs), the transition to renewable energy has driven significant advancements in energy storage technologies. This shift has also amplified concerns about managing material and energy waste from various resources. Rapid population growth and industrialization have exacerbated solid waste management issues, leading to environmental pollution and socioeconomic challenges. Utilizing municipal solid waste as a renewable energy source offers the dual benefit of meeting rising energy demands and addressing waste management challenges. Supercapacitors have emerged as a promising energy storage technology due to their high-power density, long cycling stability, and high capacitance. This chapter highlights recent supercapacitor advancements, focusing on utilizing solid waste-derived materials for fabricating low-cost, eco-friendly electrodes. Additionally, it explores the development of “green” electrolytes, which mitigate environmental impacts while ensuring efficient energy storage. It also addresses strategies for managing waste generated at the end of a supercapacitor’s lifecycle, emphasizing sustainable solutions. A multidisciplinary perspective is critical in this domain, requiring materials science, energy storage, and economics expertise. This chapter provides a holistic overview of the energy–economy relationship, market opportunities, and material-based solutions to meet market demands. Environmental waste-derived materials enable clean, cost-effective energy storage solutions, contributing to renewable energy resources. By integrating innovative waste management approaches, this chapter underscores sustainable energy technologies’ environmental and economic relevance and outlines challenges and future prospects in the field.