Load forecasting is essential for determining the electrical requirements for projects, such as sizing electrical panels, disconnect switches, and wiring. The process involves estimating future electrical loads to ensure proper system design, particularly in complex constructions like hotels and hospitals. Consulting engineering firms often engage professional electrical engineers for accurate load forecasts. The original inquiry was clarified by the user, who indicated that a friend had posted the question seeking more detailed information. Understanding load forecasting is crucial for effective electrical planning and execution.