Hi @Joshg
It’s a good question. There’s quite a lot to weigh up, I’m finding it hard to give a clear answer. @Svarky might have stronger thoughts.
I’m a bit off Sunpower atm just because it seems the company is in a bit of a tumultuous phase, but to be honest I don’t have a lot of knowledge of what is happening.
Here’s our recent QCELLS review:
I’d personally prefer to get a panel that I am confident would last 20+ years, rather than count on changing it out after 15. But it is a reasonable argument. There are plenty of early solar adopters in Australia that are already getting systems replaced. It doesn’t sit well with me, but I understand the reasoning.
For what it’s worth, I’d personally be leaning toward the QCELLS.
Cheers
Marty