Battery Energy Storage Systems (BESS) provide backup power during outages by using stored electrical energy to maintain continuous operations when the primary power supply fails. Here’s how BESS achieves this:
Components Involved
- Battery Cells: These store electrical energy, which is used to provide backup power.
- Battery Management System (BMS): Monitors and controls the state of charge, voltage, and temperature of the battery cells, ensuring safe and efficient operation during outages.
- Power Conversion System (PCS): Converts stored DC power from the batteries into AC power for use during outages.
- Energy Management System (EMS): Oversees the operation of the BESS, coordinating with the PCS and BMS to ensure efficient energy distribution during backup operations.
Functionality During Outages
- Immediate Response: BESS can provide power almost instantly, with some systems having response times as low as a few hundred milliseconds, much faster than traditional diesel generators.
- Continuous Operations: BESS can maintain power supply to critical systems such as hospitals, data centers, and communication facilities, ensuring uninterrupted service until the primary power is restored or alternative sources are brought online.
- Grid Stability: By injecting or absorbing power as needed, BESS helps regulate grid frequency and voltage during outages, preventing further disruptions.
- Integration with Renewables: BESS can be charged from renewable energy sources like solar and wind, making it a sustainable backup option.
Advantages Over Traditional Backup Systems
- Sustainability: BESS offers a cleaner alternative compared to diesel generators, reducing reliance on fossil fuels and lowering emissions.
- Scalability: BESS systems are scalable and adaptable to different power needs, unlike diesel generators.
- Cost Savings: By reducing maintenance and offering cost-effective power storage and release, BESS provides long-term savings.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-does-bess-provide-backup-power-during-outages/
