Can a battery energy storage system be used as an emergency power supply?

This paper introduces the concept of a battery energy storage system as an emergency power supply for a separated power network, with the possibility of island operation for a power substation with one-side supply.

What is energy storage?

It’s a new approach that enables energy storage—once a costly, passive (but necessary) disaster recovery asset—to emerge as a cost-effective, active participant that stands to make power systems and consumer services more resilient, more efficient, and more responsive to the need for a sustainable, readily-adaptable energy environment.

Why is energy storage important?

This system, with an appropriately sized energy storage capacity, allows improvement in the continuity of the power supply and increases the reliability of the separated network at a specified time during the limitation of power transmission as a result of damage or disconnection of the main power line.

What is an emergency power system?

Safety and Independence: Emergency power systems are often dedicated to supporting life safety systems, including emergency lighting for egress, fire pumps, sprinkler systems, and fire alarm systems, ensuring that these critical functions remain operational during a power outage.

Are battery energy storage systems effective?

Battery energy storage systems are particularly effective in these scenarios due to their swift response, environmental benefits, and efficiency. Whereas delayed response systems maintain essential functions and comfort during outages, decreasing the urgency for uninterrupted power supply.

Does battery energy storage reduce power outages?

The implementation of the battery energy storage system will contribute to a more than 5-fold reduction in the occurrence of power outages in the time interval from 3 min to 1.5 h, which will clearly reduce the System Average Interruption Frequency Index and System Average Interruption Duration Index factors.