A preliminary energy audit is an initial, high-level assessment conducted to identify major areas of energy consumption and potential savings in a power utility. Its primary objective is to provide a quick overview of the energy performance without going into excessive detail. During a preliminary audit, energy data such as electricity bills, fuel consumption records, and operational schedules are collected and analyzed to detect patterns of energy use. Visual inspections of key equipment, lighting systems, transformers, and distribution networks are performed to identify obvious inefficiencies, such as equipment running unnecessarily or outdated technology. The process relies largely on historical data and rough estimates rather than precise measurements. In a power utility, a preliminary audit helps management understand which systems consume the most energy, highlight glaring wastages, and determine whether a more in-depth, detailed audit is warranted. The findings