A Power Optimizer is a device used in solar energy systems to enhance the efficiency of solar panels. It works by monitoring and adjusting the performance of individual solar modules, ensuring that each panel operates at its maximum potential. This is particularly useful in situations where shading or dirt may affect some panels more than others. By optimizing the power output, a Power Optimizer can increase the overall energy production of a solar array. It communicates with a central inverter, allowing for better management of energy flow and improving the system's reliability. This technology is often used in conjunction with solar inverters and photovoltaic systems.