Final answer:
A standby power system is intended for less critical loads, while an emergency power system is intended for critical loads that cannot afford interruptions.
Step-by-step explanation:
A standby power system is intended to meet loads that will cause inconvenience if some sort of power supply fails, such as a backup generator kicking in to power essential appliances during a power outage. An emergency power system, on the other hand, is intended to meet loads that are critical and cannot afford any disruption in power supply, such as providing electricity to life-saving medical equipment or emergency lighting during a power outage.
For example, in a hospital, a standby power system would provide backup electricity to keep non-critical systems functional during a power failure, while an emergency power system would ensure that vital systems like operating rooms and life support equipment continue to work without interruption.