MPPT, or Maximum Power Point Tracking, is a technique used primarily in solar power systems to optimize the energy harvested from photovoltaic panels. By continuously adjusting the electrical operating point of the modules or array, MPPT ensures that the system operates at its most efficient voltage and current combination. This allows the solar panels to deliver maximum possible power to the load, regardless of changing environmental conditions such as sunlight intensity and temperature. MPPT is commonly implemented in charge controllers and inverters, making solar energy systems more efficient and cost-effective.