Thank you both for your responses
So considering I have my bss coming up and currently have neither in place, I will:
- Add two earthing points, probably on the engine bearers.
- attach one to the engine 'earthing point'
- attach the other to the earthing point on the inverter, which is common with the earths in the sockets
Should I also be running a cable from the consumer unit earth bus bar? Or is it enough to just use the one provided on the inverter?
Thanks again for the speedy and helpful responses