Solar Panels Query

[Nix]

Thanks Bjm, the set up you describe is exactly as I envisaged. What was news to me, in your post, was the monitoring side of things. If the installers note a drop in expected output then they would visit but it would have to be outside their parameters, I assume. Will try and ask around...

The problem still exists as to how someone with little or no knowledge can access and modify an existing system safely, cheaply and with maximum benefit.