A structured document used to determine the total electrical demand of a facility or system that a generator is intended to supply. It systematically lists all electrical loads, their power requirements (in kilowatts or kVA), and their operating characteristics (continuous, intermittent, or standby). This document often includes factors such as demand factors and diversity factors to realistically estimate the peak electrical demand. For example, a data center would list all servers, cooling systems, lighting, and other equipment, noting their individual power consumption and usage patterns.
The meticulous assessment of power needs is essential for selecting the correct generator size, preventing both under-sizing (leading to potential power outages and equipment damage) and over-sizing (resulting in unnecessary capital expenditure and inefficient operation). Accurate power assessment contributes significantly to operational reliability and cost-effectiveness. Historically, these evaluations were performed manually, prone to human error; now, specialized software and standardized templates enhance accuracy and streamline the process.
