How are you all finding this energy rising?

[A_Camera]

My mums and my father in laws roof pv systems produce next to nothing compared to their system sizes. One is 12 panel, one is 15 panel. In fact, My mums place was already installed (circa 2010) when she bought it and it looks like they haven't been producing for a while.
Likely the inverter but isn't worth fixing when doing the math, be breaking even over a full 10yr period.
They're not worth the cost tbf. It's BS.

Perhaps the site needs some maintenance...? I mean, seriously, nothing lasts forever, but I am pretty sure it is worth fixing, unless the installation is totally wrong. Also, at least here in Sweden, the warranty is so long that it would DEFINITELY be worth fixing if it was mine.

Warranty for me is:

Solar panels: 10 years
Inverter: 12 years
Optimizers: 25 years
Effect warranty on panels: Minimum 80% after 25 years
Installation: 5 years

So I suggest you help your parents, read their contracts and maybe you will find out that there is still warranty. Anyway, even if they need to change the inverter, that's just a small cost compared to the whole installation. 27 panels, even if they are old, should produce at least some energy, much more than "next to nothing". Aren't they keep track of when things break? It is after all, a "machine" just like the washing machine, the car, the stove or whatever else. Must be kept under control to see it does what it meant to do. Everything can break, PV systems are not exception.

PV systems are not BS at all, and definitely worth the cost, but I know there are many not so serious installers, not only in UK but everywhere else.