Solar energy is one of the most promising renewable energy sources due to its cleanliness and sustainability. However, the efficiency of solar panels is significantly affected by the accumulation of dust, dirt, bird droppings, and other environmental pollutants on their surface. Regular cleaning of solar panels is therefore essential to maintain optimal power output. Manual cleaning methods are time-consuming, labour-intensive, and sometimes unsafe, especially for large-scale solar installations. This project presents the design and development of an automatic solar panel cleaner robot that efficiently cleans the surface of solar panels without human intervention. The robot operates using electric motors and cleaning mechanisms such as rotating brushes or wipers, controlled by a microcontroller. It moves smoothly over the panel surface, removing dust and debris while minimizing water usage or enabling dry cleaning. Sensors may be incorporated to detect panel edges and obstacles to ensure safe operation. The proposed system reduces maintenance costs, improves energy efficiency, and enhances the lifespan of solar panels. It is especially suitable for large solar power plants and rooftop installations where frequent cleaning is required. The solar panel cleaner robot provides an economical, eco-friendly, and reliable solution for maintaining solar panel performance.