Hi Anthony…
This is not an out of the box component nor add-on as Home Assistant already has a built-in Modbus integration. This repo merely demonstrates a working configuration.
I suggest starting by copying Sungrow-SHx-Inverter-Modbus-Home-Assistant/modbus_sungrow.yaml at 20c594987a5808c74e018942699324ce62ab86a2 · mkaiser/Sungrow-SHx-Inverter-Modbus-Home-Assistant · GitHub into your own configuration.yaml (or a package within it), merging modbus sections if you have others. Adjust your secrets to use the correct IP, port, etc.