The grid-scale renewable energy backup system will provide enough power for more than 30,000 homes and will become the highest power battery system in the world by a factor of 3, according to Elon Musk.
https://www.notebookcheck.net/Elon-Musk-and-South-Australian-authorities-team-up-to-develop-the-biggest-Li-ion-backup-battery.232398.0.html