Thanks Nick.
You made the point:
" In this respect I would suggest the hilltop setup is best left in glorious isolation not connected to anything at a distance."
I agree but point out that I did say that this installation is isolated and 1 km away from my house. It is self-contained - stand-alone. It is on a hill because it is a wind turbine and height is king with those. So the issue for me and the one I thought I raised is the usefulness of multiple ground rods as a lightning defence.
Peter;
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