Energy auditing is the process of evaluating a building's energy use to identify opportunities for improving efficiency. This involves examining various systems, such as heating, cooling, lighting, and appliances, to determine how much energy they consume and where waste occurs. The goal of an energy audit is to provide recommendations that can help reduce energy costs and environmental impact. By implementing these suggestions, property owners can save money and contribute to sustainability efforts, making energy auditing an essential practice for both residential and commercial buildings.