Gravity Light

Project Overview

The Gravity Light project was an innovative solution conceptualized around 2018 to combat the frequent power cuts (loadshedding) in Nepal. The core idea was to harness gravitational potential energy in a novel way: by capturing the energy from household waste or used water (like dishwater) being discarded from upper floors. The goal was to convert this downward motion into electricity, providing a sustainable, fuel-free light source as an alternative to kerosene lamps.

Technical Details

The core of the mechanism is a gearbox that translates the slow descent of a heavy bag into high-speed rotation for a small DC motor/generator. The electrical energy produced by the generator powers an LED. The design required careful mechanical considerations to maximize efficiency and light output duration from a single lift of the weight. It was a fascinating challenge in mechanical-to-electrical energy conversion.