Battery Energy Storage Systems (BESS) play a crucial role in providing backup power during electrical outages. Here’s how they function:
Key Components and Functionality
- Batteries: BESS use rechargeable batteries, which can be charged from various energy sources including the grid, solar panels, or wind turbines.
- Battery Management System (BMS): This system ensures optimal performance by monitoring battery health, charge levels, and managing cell balancing.
- Power Conversion System (PCS): This system converts DC power from the batteries to AC power suitable for household or industrial use.
Backup Power During Outages
During a power outage, a BESS can automatically switch from grid power to battery power, ensuring that essential circuits remain active. Here’s how it works:
- Seamless Transition: Systems like Tesla’s Powerwall and other modern BESS offer seamless backup transition, meaning that once the grid fails, they quickly start supplying power from stored energy without noticeable disruption.
- Energy Storage Capacity: The capacity of the battery determines how long the backup power can last. For instance, a high-capacity system like the 258 kWh industrial BESS can power a 120 KVA load for over two hours.
- Scalability: Many systems are scalable, allowing users to add more batteries or units as needed to increase backup duration and capacity.
- Integration with Renewable Energy: BESS can be integrated with solar or wind power systems, allowing users to store excess renewable energy generated during the day for use during outages or at night.
Benefits of BESS in Backup Power
- Reliability: Ensure stable power during outages.
- Flexibility: Can be used with or without the grid.
- Environmental Benefits: Promotes the use of renewable energy.
- Cost Savings: Allows peak shaving and demand charge reduction, reducing electricity bills.
Overall, BESS provide a reliable, sustainable solution for backup power during outages, supporting both residential and industrial needs.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-do-battery-energy-storage-systems-provide-backup-power-during-outages/
