Team Smarvest focused this solution on strengthening water security and soil resilience for farming communities in Yangil. By capturing monsoon rain in low-cost lahar-built reservoirs and restoring soil through community-produced biochar, farmers gain reliable water and healthier land. Simple sensors guide irrigation decisions, while a shared data platform connects families, youth, and local institutions. The system transforms rain, waste, and local knowledge into a sustainable, community-driven model for long-term climate resilience.

Team Delta developed The Roots Kits to empower the Sankandi Youth Development Association and local NGOs by means of innovative, cost-effective tools to improve mangrove restoration in Gambia. This DIY environmental monitoring kit enables communities to measure critical factors such as soil pH, water salinity and geolocation to pinpoint ideal planting sites and select suitable mangrove species. The project includes hands-on training modules that enable SYDA members to become leaders and share knowledge locally. This is a scalable, impactful solution for restoring ecosystems whilst fostering community empowerment and resilience.

Team 4Award invested in AquaMist, an innovative showerhead that revolutionizes water and energy savings in sports facilities, slashing water usage by up to 50% and energy consumption by 27% – the equivalent of 8 tons of CO2 annually. Featuring light rain and mist modes, it delivers an exceptional shower experience while promoting sustainability. Gym users activate the shower by NFC-enabled wristbands seamlessly integrated with the gym’s existing apps for real-time water-use tracking.

Team 4 focused this solution on improving the sustainability of automotive manufacturing by increasing the use of high-quality recycled plastics. By integrating large-scale electrostatic separation into post-shredding recycling processes, the system enhances the purity of materials such as PET and PP. This enables manufacturers to incorporate more recycled plastics into vehicle production, supporting circularity goals and preparing for upcoming European environmental regulations.

Team Planck focused this solution on improving public health by providing safe access to water by monitoring and maintaining water points in northern Ghana.

ElecTree is the first modular extendable plug-n-play intelligent grid solution designed to optimize electricity distribution in situations of scarce energy. It was conceived mainly for use at refugee camps, but its applications extend well beyond this realm.

CORTEX is a decentralized and distributed network that keeps safe and verifies individual academic records. CORTEX is a private blockchain with only an academic purpose, in which the courses approved and degrees obtained by a student are recorded as transactions in the student personal profile.

Waterwall looked at how household grey water could be turned into drinking water. The result is Water Wall, a home water management system that features three filters: a sand filter, an activated charcoal filter, and — last but not least — a plasma filter. These filters allow one to use 80% of grey water and also to analyse users’ water-consumption patterns.