Quick Answer
To determine a generator size based on load management needs, calculate the maximum power required for critical loads, then size the generator accordingly, allowing room for peak demand and voltage drop considerations.
Load Calculation
To size a generator for load management, start by calculating the maximum power required for critical loads, such as refrigeration, lighting, and medical equipment. These loads are usually the highest priority and determine the minimum generator size. For example, a refrigerator typically requires 2-3 kW of power, while a medical facility may require 10-15 kW.
Generator Sizing
Once the critical load is calculated, add a buffer for non-critical loads and peak demand. A general rule of thumb is to add 20-30% to the critical load to account for non-critical loads and peak demand. For example, if the critical load is 10 kW, a 12-13 kW generator would be a suitable size.
Smart Switches and Auto-Start
Smart switches can be used to automatically turn on the generator when a critical load is detected, ensuring that power is available when needed. Auto-start systems can also be integrated with the generator and smart switches to automatically start the generator when the load exceeds a certain threshold. This ensures that the generator is only running when necessary, reducing wear and tear and increasing overall system efficiency.
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