Largest battery storage system in Hong Kong to reduce electricity wastage

The Airport Authority (AA) and CLP have jointly developed a Battery Energy Storage System (BESS) to cope with HKIA’s continued growth and need for backup power supply.  This is the largest battery storage system in Hong Kong which contains over 400 lithium batteries, equivalent to more than 55,000 pieces of 10,000 mAh portable power banks.  BESS, which operates without fuel, is more environmentally friendly than other existing backup generators and can efficiently store up electricity generated from routine testing of backup generators for future use such as providing power in the event of emergency.