Energy auditing is the process of assessing a building's energy use to identify opportunities for improving efficiency. This involves examining how energy is consumed in various systems, such as heating, cooling, lighting, and appliances. The goal is to pinpoint areas where energy is wasted and recommend solutions to reduce consumption and costs. During an energy audit, professionals may use tools like thermal imaging cameras and energy monitoring devices to gather data. The findings help building owners make informed decisions about upgrades or changes, ultimately leading to lower energy bills and a reduced environmental impact.