Recently, the most expensive part of the system, the Aurora inverter, failed with a 'hardware fault', outside its 5 year warranty period of course.
so was replaced with a very similarly sized Solis:
Once bitten, I looked into the warranty period for these. 'Standard' warranty is 5 years but if you are in the good old US of A it is 10 years. Curious that. Different sort of sunshine perhaps. But no worries, some UK suppliers offer 10 years.
I shall report further.