User avatar
RegGuheert
Posts: 6178
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~36 Years M215: ~316 Years M250: >357 Years

Fri Apr 06, 2018 12:44 am

From the "jagged production curves" thread:
jjleejr wrote:So from the public page you can monitor and see when a micro inverter fails?
That was true until September 3, 2013. Before that date, I could gather enough information from the public pages to identify failures. On that date Enphase reduced the amount of data which was available on every system's public page. As a result, I now depend on reports from owners or friends of owners to know how many failures a given system has experienced.
jjleejr wrote:Feel free to add mine. It’s a brand new system.

John
Thanks, John! I added your system as Row 238 in the spreadsheet. Please check the details I wrote there to ensure they are correct. If you want me to keep up with your system's reliability, please drop a note into this thread occasionally and let me know how many failures you have had, even if there have been none. There is no need to do that regularly, as MTBF data accumulates very slowly. But if you do it every year or so that's fine. Please identify which row your system occupies at the time you make the report. TIA!

Congratulations on your new system!
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 6178
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~38 Years M215: ~460 Years M250: >300 Years

Tue Apr 24, 2018 8:26 am

RegGuheert on April 4, 2018 wrote:
RegGuheert wrote:Let's see if I can get any M190s to fail during the summertime this year.
Wow! That was fast! One of the M190s is now reporting a "Hardware Failure".

My evil plan is working! :twisted:
That one inverter had a hardware failure almost the entire first day it was back in service. None since then. These M190s with the latest firmware are much less likely to die than they used to be, but they still frequently give slightly less power than normal and report "Grid Gone" errors.

Let's see how they do this summer...
RegGuheert
2011 Leaf SL Demo vehicle
10K miles: Apr 14, 2013, 20K miles (55.7Ah): Aug 7, 2014, 30K miles (52.0Ah): Dec 30, 2015, 40K miles (49.8Ah): Feb 8, 2017, 50K miles (47.2Ah): Dec 7, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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