Determining the appropriate electrical service size for multi-unit dwellings involves a systematic process of load assessment. This process considers the anticipated power demand of individual units, common areas, and building systems like HVAC and lighting. For instance, a building with numerous high-power appliances in each unit will require a larger service capacity than one with primarily lighting and small appliance loads.
Accurate electrical service sizing is crucial for the safety and functionality of multi-family buildings. An undersized service can lead to overloaded circuits, breaker trips, and even fire hazards. Conversely, an oversized service represents an unnecessary upfront investment. Historically, service calculations have evolved alongside increasing electrification in residential buildings, moving from primarily lighting loads to encompassing a wide array of power-hungry appliances and electronic devices.
