Feasibility Analysis of an Energy Storage System Without Batteries for Isolated Street Lighting

This paper investigates the feasibility of non-battery energy storage systems for isolated street lighting, focusing on mechanical storage technologies such as gravity storage, compressed air energy storage, and flywheels. As the global shift toward renewable energy accelerates, the challenge of intermittency in sources like solar and wind becomes increasingly significant. Traditional batteries, while widely used, present limitations in cost, lifespan, and environmental impact. Mechanical storage systems offer promising alternatives, with potential for greater sustainability and efficiency. Through a detailed analysis and comparison of investment costs, this study evaluates the practicality and effectiveness of these non-battery solutions in providing reliable energy storage for a sustainable future.