PowerWall scales fine, like most things do, with infinite money. All you need is a ~$10K [1] investment (including installation) for every house every 10 years

PowerWall scales fine, like most things do, with infinite money. All you need is a ~$10K [1] investment (including installation) for every house every 10 years (warranty period) and voila - grid scale! Oh warranty doesn't cover normal degradation of energy capacity over time. [2] [1] https://www.energysage.com/solar/solar-energy-storage/tesla-powerwall-home-battery/ https://www.energysage.com/solar/solar-energy-storage/tesla-... [2] https://www.solarquotes.com.au/blog/new-powerwall-warranty/ https://www.solarquotes.com.au/blog/new-powerwall-warranty/