Thank you for alerting us to this
@Will Prowse
There are several fundamental problems around grounding on DIY projects.
1) Many of the inverter manufacturers do not provide adequate documentation on how the inverters deal with grounding. Growatt and MPP are among the worst at this (I have often said that it borders on criminal negligence on the part of the manufacturers).
2) There is a *lot* of misinformation on the web about grounding. (Thankfully, I have not seen too much of it here on this forum)
3) Grounding is far more complex than most people realize and far too many people do not understand grounding. Worse yet, many people that think they understand it, don't.
4) It is easy to build something that appears to work fine but is fundamentally unsafe because of the way the grounding and bonding are done on the project.
Add to that the use of products designed for one country being used in another country and it is a huge problem.