Jackery's latest portable power station can supply back-up power at a rated of up to 7,200 watts of with its up-to-date LiFePO (LFP) 5,040 watt-hour battery. The Explorer 5000 Plus can also be charged directly from a residential grid with its OEM's Smart Transfer Switch. The two devices can be ordered as a bundle that currently goes at a discount of up to $1,000 as part of Jackery's New Year's Sale.https://www.notebookcheck.net/Jackery-Explorer-5000-Plus-can-augment-home-power-system-directly-for-1-000-less-during-flash-sale.939609.0.html
This just makes sense to be part of eventual code when you build new houses. Add solar, and you provide a new level of grid stability AND full car charging capability.