Tesla announced a new massive battery today called Megapack that could replace so-called “peaker” power plants, which provide energy when a local electrical grid gets overloaded.

from https://www.theverge.com/2019/7/29/20746170/tesla-megapack-battery-pge-storage-announced
https://cdn.vox-cdn.com/uploads/chorus_image/image/64874174/Megapack_Hero_2880x1800.0.jpg