I have small Cay in the Bahamas - that is controlled by Home Assistant. HAss is truly BRILLIANT technology, I do not know how I survived without it. Home assitant controls Shelly devices that trigger 240VAC relays that power on my chargers (3.3kW, 6.6kW or both at 9.9kW) depending on the usage of power on the Cay. I have a salvaged Tesla Model 3 battery pack that is 75kWh and a bunch of salvaged Model S and Nissan leaf modules at another 60kWh. Excess solar is used to desalinate water and provide fresh water to vegetables and fruite trees.