My Dad shows the Battery System for the Largest Data Center in New Jersey, how it works, Thoughts?

What happens here

This video features a Master Electrician providing a comprehensive tour and explanation of the robust backup battery system for a large data center in New Jersey. He details the components, including an 800 KVA UPS, main inverter units, battery cabinets, and isolation breakers, explaining how the system ensures uninterrupted power to critical loads through continuous operation and redundancy. Due to the highly specialized and industrial nature of the equipment and systems involved, this video is purely informational and does not constitute a 'DIY project'. It showcases complex electrical infrastructure that is not suitable for replication or maintenance by individuals without extensive professional training and certification.