41.3kW DIY Solar Panel Install on 4 houses

[Ampster]

not sure how you propose to easily manage this risk? is there a cheaper way?

Yes buy a backup or a used one when one fails. The hard risk to manage is the evolving standards. None of this is unique to Solaredge. The SMA example and my Xantrex example are just two cases.

[oregon_phil]

I agree with this. My old system used a SMA 2014 rapid shutdown box on the roof. This solution was obsoleted late 2018/early 2019. If that box failed, I would have been SOL. That less than stellar SMA 2014 RSD "solution" made me dissatisfied enough that I had it removed and replaced with TIGO's when my SMA inverter was RMA'ed in 2020.

[khanh dam]

sunspect alliance wasn't even around in 2014 (SMA ROOFTOP) or 2010 Xantrec is out of business right?
lets talk about todays gear, not yesteryears has beens.

[Ampster]

sunspect alliance wasn't even around in 2014 (SMA ROOFTOP) or 2010 Xantrec is out of business right?
lets talk about todays gear, not yesteryears has beens.

In post #16 someone sidetracked thus thread by raising the question, "... if they go out of business in 9 years you are screwed? Now, you want us to forget history?

[oregon_phil]

The OP still has 3 homes of solar to install so I think this bit of discussion about "history" and "obsolescence" is worthwhile. Rapid shutdown changes have evolved quite dramatically between NEC 2014 and NEC 2017. My system was installed fall 2018 which isn't that long ago. Giving some background on why certain component or system decision were made on my system might just help somebody educate themselves and make a better decision in the future. I know I like it when people give more background information.