Battery Remaining Charge Estimation for Small Hydroponic Plant Cultivation System

Continuing population growth and climate shift worldwide has introduced additional risks to our civilization. Our team set out to confront the risk of potential malnutrition of future generations. We have developed a system that utilizes sustainable energy for the purpose of agriculture. Our system utilizes sunlight radiation for energy storing based on a model that incorporates governmental irradiation forecast data. This energy is then used to supplement plant growth. Energy conservation and storage is assisted by an on-site battery that utilizes a method of conservation estimate to accommodate the ever-changing weather conditions which allows for powering the LED light units for plant irradiation. This paper talks about the determination method of a battery SOC (State of Charge) and the simplification of the process based on experiments conducted with a Nickel-Hydrogen battery unit.