The image is a detailed schematic diagram illustrating a sand battery design with a volume of 30 cubic meters. At the core, a central steam release pipe is depicted, which plays a crucial role in the system's functionality. Below it lies a water capture basin designed to collect and recycle water for system efficiency. The walls and roof of the structure are insulated to maintain temperature, and large heat pipes are strategically positioned at the top. These pipes are reminiscent of those used in CPU coolers, ensuring effective heat distribution and retention for energy storage. The overall layout emphasizes sustainable engineering practices, Detailed schematic diagram illustrating a sand battery design. Central steam release pipe plays a crucial role. Below lies a water capture basin for recycling water. Insulated walls and roof maintain temperature. Large heat pipes positioned for effective heat distribution. Layout emphasizes sustainable engineering practices