The growing problems with the solid waste management are becoming widespread throughout the country. Composting is currently the most common method of handling biodegradable wastes, however, a significant portion of biodegradable wastes derived from food and market wastes are becoming unusable or “waste-wastes”. These types of wastes can be upcycled and serve as a raw material for the production of fuel and electricity. The trend in renewable energy sources and its potential to decrease the carbon footprint is now giving an impact that addresses the Sustainable Development Goal (SDG) 7 – Affordable and Clean Energy and at the same time ensuring sustainable consumption and production patterns (SDG 12). The purpose of this study is to enhance the waste management of Science City of Muñoz through the utilization of Renewable Energy Technology. The wastes of vegetable and fruit stalls were the source of the raw materials in manufacturing the charcoal briquettes. This study shows that the solid waste management system can be improved by using biodegradable waste and turning it into renewable energy. The results show that the developed charcoal briquettes are functional and dependable in terms of various tests performed. It can meet the basic requirements of the people in terms of cooking their food because of its long duration of burning time. The development of charcoal briquettes from market wastes aligns with the Circular Economy concept, which holds that any waste material found in the environment can be used to create a new beneficial product. As a result, using charcoal briquettes can also lessen the need for conventional charcoal, which otherwise would preserve the trees from cutting down and slows down the global warming