I-SWEEEP 3E Sustainable Future Challenge aims to create a collaborative yet competitive environment in which students can present their innovative projects to solve today's challenges in energy, engineering, and environment, which will ensure a sustainable world for tomorrow. I-SWEEEP upholds the 3E (energy, engineering, and environment) concept throughout its events. The project should display a scientific approach in the theme of environmental sustainability and innovation. I-SWEEEP academic competition categories and subcategories are outlined below.
| ENERGY | ENGINEERING | ENVIRONMENT |
| Renewable Energy | Biological Engineering | Land Management |
| Bio Energy | Civil Engineering | Ecosystem Management |
| Non-Renewable Energy with Clean, Green Advancements | Mechanical Engineering | Bioremediation |
| Energy Policies | Industrial Engineering | Air Pollution/Quality |
| Clean Energy Technology | Material Science | Soil Pollution/Quality |
| Energy Efficiency | Electrical Engineering | Water Pollution/Quality |
| Energy Conservation | Computer Engineering | 3R:Reduce-Reycle-Reuse |
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