Re: Enphase field MTBF: M190: ~36 Years M215: ~316 Years M250: >357 Years
Posted: Wed Sep 05, 2018 9:30 am
Line 222, no failures to report.
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Updated. Your measured MTBF now exceeds 64 years with no failures.philip wrote:Line 222, no failures to report.
Your MTBF is now above 190 years with no failures. 170 of your device-years are with the original M215s, which I believe contain third-generation electronics (M190-like) even though they are officially fourth-generation inverters.iPlug wrote:Lines 208 and 224, no failures to report.
Interesting. It looks like it is for second-generation inverters, which I believe is the M170s. I have not been tracking failures of those inverters. I wonder if those are having problems with failure rate or if they are going out of warranty sometime soon.drees wrote:Somewhat related to MTBF, Enphase is offering an upgrade program for "legacy" Enphase owners to upgrade to IQ 7 or IQ 8 when it's released.
Enphase states on the page that the latest generation inverters are an order of magnitude more reliable than earlier ones.
RegGuheert wrote:[It looks like it is for second-generation inverters, which I believe is the M170s.
Thanks, Wayne! It's interesting that they don't call that set "second- and third-generation microinverters".wwhitney wrote:Per the FAQ at the bottom of the page, it is for M190, M210, D380, and M175 inverters.