Manmade Global Warming - New Extremes, page-152

Lithium batteries are falling in price every year. Soon they will be in wide use in a large number of households equipped with solar panels. If you look at the cost of batteries in EV's for example, you can clearly see where we are headed.

https://thedriven.io/2021/07/23/how...batteries-for-electric-vehicles-in-australia/

"if the cost per kWh is already US$137, with BNEF predicting it will hit US$58/kWh by 2030, it seem that when the current crop of EVs may begin to need new batteries, a price of around US$4000 ($A5,400) for a 64kWh Kona battery pack is likely."

An EV battery is of course not a home battery but once the volume of production increases we will see a tipping point. At around a production cost of AU$100 per kWh of storage this will make them a clear winner.