Power optimisers are sophisticated electronic devices designed to maximize the efficiency of solar power systems. They serve as a bridge between solar panels and inverters, ensuring that each panel operates at its optimal power level regardless of the performance of other panels in the array. The main functions of power optimisers include harvesting the maximum possible energy from each solar panel, minimizing the impact of shading, and maintaining system voltage within safe limits. Technological features of power optimisers include advanced Maximum Power Point Tracking (MPPT) algorithms, which adjust the voltage to ensure peak power output, and communication interfaces that monitor and report the performance of each panel. These devices find applications in residential, commercial, and utility-scale solar installations, enhancing overall system performance and reliability.