Off-Grid Solar Battery Installation

Job ID: 40492002

Budget: $750 – $1,500 USD

Hello,
I am currently off-grid with a 8.85kw solar array and an incapacitated SolarEdge Inverter. The contractor that did the installation back in 2019, not only put in an earlier model of the inverter, but assured me that it would work with a battery back up in the event of disconnection from the grid, which it does not. I found this out when Duke Energy disconnected me after raising their rates and somehow setting me up to be in their debt rather than they in mine (I over produce a lot). This, after returning from being months away taking care of my elderly mother after an operation.
I am looking to take a more do it yourself route this time, with a new inverter and battery installation (I will buy the equipment after we consult on viability, price, etc.). This, with an electrician that would direct me in order to ensure all is done in the safest way possible. The system needs to be independent first and foremost, with an eventual possibility of reconnection to the grid, if needed or imposed.
Thanks