I’ve been considering this for my home. I have solar already but with an EV my usage exceeds my generation. Second hand panels like this ones in this article ar

I’ve been considering this for my home. I have solar already but with an EV my usage exceeds my generation. Second hand panels like this ones in this article are cheap. I could get a set of those and sting them into an EcoFlow Ultra which has the solar inverter and ~5kWh battery. Then plug an EVSE directly into the 240v plug on the eco flow. Eco flow also has an API so I could get fancy with the software and change what gets charged based on the car or battery charge levels. It would cost ~$6K. I estimate I’d save about $1500/yr from my electric bill. ROI isn’t great but most home projects have an even worse ROI so I still might do it just for kicks. Would also be nice to have a big Eco Flow battery I could use for other stuff.