Backup Generator
A standby power generator that automatically starts during utility outages to provide electricity to critical building systems.
Full Definition
A Backup Generator (also called a standby generator) is a power generation system that automatically starts during utility outages to provide electricity to critical building systems. Generators are typically fueled by diesel, natural gas, or propane and can power life safety systems, critical equipment, and essential operations. They include automatic transfer switches that detect power loss and switch the building's electrical load to the generator. Regular testing and maintenance are required for reliable operation, including monthly runtime tests, fuel management, and periodic load bank testing to verify capacity.
Related Terms
Emergency Power System
A backup power system that provides electricity during utility outages to maintain critical building operations.
Generator
A backup power system that provides electricity during utility outages.
Electrical System
The integrated network of electrical distribution equipment, circuits, and controls that deliver power throughout a building.