Abstract - Energy is a fundamental necessity for human life and the cornerstone of modern industrial economies. In our
increasingly connected world, the Internet of Things (IoT) has emerged as a transformative force across various sectors,
including energy management. This paper explores the deployment and impact of the Energy wastage controlling and
monitoring system, an IoT-based solution, in modern buildings in Mogadishu, Somalia, where energy efficiency is critical due
to limited energy resources and high costs. The research reveals the system’s capacity to significantly reduce energy
consumption by strategically employing motion detection sensors to automate lighting, heating, and cooling based on
occupancy and environmental data. Additionally, integrating temperature and humidity sensors contributes to maintaining
optimal indoor conditions, enhancing occupant comfort, and curbing unnecessary energy use. A dedicated mobile application
empowers users with real-time access to sensor data and remote control over connected devices, promoting active engagement
in energy-saving practices. The system effectively addresses phantom power consumption by powering down electrical sockets
during non-working hours, resulting in substantial energy savings. Beyond environmental benefits, reduced energy
consumption translates into tangible cost savings for building owners and occupants, making buildings more economically
viable and attractive. The system’s modular design allows for scalability and adaptability to various building types and sizes,
fostering tailored energy-efficient solutions. Despite initial setup costs and maintenance challenges, the Energy Wastage
Controlling and Monitoring System signifies a significant stride toward achieving energy efficiency in Mogadishu and similar
urban environments. It offers an intelligent and automated approach to energy management, contributing to sustainability, cost
savings, and occupant comfort. Furthermore, this research underscores the broader implications of IoT-based energy
management, emphasizing its potential to address energy challenges in emerging urban centres worldwide. As ongoing
research and development efforts persist, IoT technology is poised to shape the future of smart buildings and promote
sustainable energy practices, heralding a more efficient and environmentally conscious end.