That’s kind of what i figured but they insist that the Performance Warranty trumps the Manufacturer’s Warranty. I got them to put it in writing in case it ever comes up.

‘Could you also confirm that the performance guarantee covers the parts and labour for replacing the affected panel(s) if one or more panels fails for any reason after the product warranty is finished (within 25 years).’

‘Yes the performance guarantee covers parts and labour’.

They say that the install includes a monitoring system which will email me if a panel’s performance falls below a certain level (90% years 1-2, 80% years 13-25) and they will automatically come out and replace it. Does this seem feasible?