Optimizer vs Micro Invertor Question

[inetdog]

The link complains that the M250 does not work with 72 cell panels. But the M250 spec sheet lists an operating input voltage up to 48V and the MPPT operating range goes up to 39V.
Perhaps I am missing something?

[deyounte]

m250 for 72 cell panels

The link complains that the M250 does not work with 72 cell panels. But the M250 spec sheet lists an operating input voltage up to 48V and the MPPT operating range goes up to 39V.
Perhaps I am missing something?

Well, that's just wrong. Here's a link to Enphase where that is dispelled.

https://enphase.com/en-us/support/module-compatibility

[Yaryman]

The link complains that the M250 does not work with 72 cell panels. But the M250 spec sheet lists an operating input voltage up to 48V and the MPPT operating range goes up to 39V.
Perhaps I am missing something?

My fault. Didn't make my point very clear.

If you Google "United sucks", you will find out many, many, many, many reasons that United Airlines Sucks.
You will even find videos.

https://en.wikipedia.org/wiki/United_Breaks_Guitars

If you Google "Enphase sucks", you won't find any mention of high failure rates of their inverters.
In fact, one of the first results seems a customer who somewhat got screwed over by his installer that didn't include the Envoy system and install it.

If you Google "Enphase m250 failure rates", you won't find any installer complaining about the product and high failure rates.
In fact on of the top results was one I listed where some installer said he wouldn't use them because of reasons that seem to be incorrect or are no longer true.

My point was, maybe Enphase got the M250 right.

On the other hand, maybe there was a reliability issue with the M190, and rightly so some installers gave up on the system.

Hell, it took Microsoft 4 tries before they developed a stable operating system.

BAD - Win95, Win98. Terrible Windows Millenium Edition. Worthwhile - Windows XP.