Adding an EV battery to your home

Hi all, I have just watched a very interesting video about an Electrician adding an EV battery (Tesla LFP) to his home.

Not sure this will be a thing going forward as V2H is on the way, but I think he paid £2500 ish for a 85 kw battery.

https://youtu.be/N5MEEaXGjUU?si=i3DcHAy4BEUy-phg

Daveb01 The Tesla LFP battery is 60kWh but yeah it would be good re-use some of the older car batteries kicking around, even something like a Leaf with a degraded 28KWh battery could be good economics.