SunPower SPR-E20-327-C-AC Power Testing

[J.P.M.]

Why were the micros replaced after such a short service life ?

I don't know where I'd get a panel tested, but I'd guess the cost of doing so would far exceed the cost of replacing the panel and inverter. In any case, I'd first check the micro spec sheet and determine its max. output which may be close to 270 W.

But after I checked the micro spec sheet, the next call I made would be to the installer who replaced the micros.

[ajonestx]

Does anyone know where I can get a panel with microinverter removed and tested? STC is 327 watts. Just a few months after installation (in February), I was seeing 300 watts (plus), then after the microinverters were replaced, I have not seen anything higher than 270 since. I would like to know if there are service providers (preferably in Texas) who can test the panel / microinverter (AC wattage output) for a fee. If I need to ship it out of state for the right test, I can do so.