Malaysian students built a device that turns wastewater from sinks into electricity; the system stores intermittent flow and powers a tiny turbine

• Malaysian students have built a prototype that attempts to recover electricity from one of the most overlooked sources of wasted energy in a home, water flowing down the sink.
• Developed by three students at Universiti Malaya, WattsUp is an IoT-enabled micro-hydropower system designed specifically for the weak and intermittent flow produced by household wastewater.
• Rather than allowing the water to immediately disappear down the drain, the system filters and temporarily stores it before releasing it through a nozzle at higher speed.