A Building Energy Audit is a systematic evaluation of a building's energy use and efficiency. It identifies areas where energy is wasted and suggests improvements to reduce consumption. The audit typically involves inspecting heating, cooling, lighting, and insulation systems, as well as reviewing energy bills to understand usage patterns. The process can help building owners and managers save money on energy costs and improve comfort for occupants. By implementing the recommendations from an energy audit, buildings can become more sustainable and contribute to reducing overall carbon emissions in the environment.