Which term describes an alternate supply of electric power produced on site, not constantly producing power?

Which term describes an alternate supply of electric power produced on site, not constantly producing power?

• A. On-Site Power Production Facility
• B. Standby Power
• C. Emergency Power System
• D. Auxiliary Generator

Answer: (B)

Standby power is an on-site source of electrical power that sits idle until normal utility power fails, at which point it automatically starts and carries the load. This fits the idea of an alternate supply produced on site that is not constantly producing power, because the generator only runs when needed to back up essential equipment. The other terms are broader or less precise: an on-site power production facility is too generic; an emergency power system describes the whole arrangement for critical loads, not the specific backup source; and an auxiliary generator is simply a secondary generator, not necessarily the defined standby concept.

Standby power is an on-site source of electrical power that sits idle until normal utility power fails, at which point it automatically starts and carries the load. This fits the idea of an alternate supply produced on site that is not constantly producing power, because the generator only runs when needed to back up essential equipment. The other terms are broader or less precise: an on-site power production facility is too generic; an emergency power system describes the whole arrangement for critical loads, not the specific backup source; and an auxiliary generator is simply a secondary generator, not necessarily the defined standby concept.