Tracksyde
Posts: 2
Joined: Thu Jan 12, 2012 11:43 am
Delivery Date: 12 Jan 2012

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

Fri Jun 23, 2017 10:37 am

iPlug wrote:Tracksyde from PriusChat? Says you've been around since 2012 here, but one post. Good to see you on the flip side.


Yes, well.. I joined MNLeaf before I actually got my Prius because I didnt think I could live with the range. But I quickly realized I didnt actually need much range on a daily basis (turns out I dont drive to Vegas every day so I dont need 300+ miles of range). :D

jwarcd
Posts: 6
Joined: Thu Mar 28, 2013 7:33 pm
Delivery Date: 15 Mar 2013

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

Mon Jul 17, 2017 10:01 am

Line 104 Update

Had one M210 inverter fail last week. At first it had a couple of GFI errors that I reset, but now it's totally offline.

System History: The 20 M210 inverters were originally installed on 8/2011, but after 10 failed inverters Enphase agreed to replace all the inverters with new M210s in 8/2014.

I hope history is not repeating itself...

I sent in an support request via the Enphase website a week ago, but so far I've got no response from then.

User avatar
RegGuheert
Posts: 5583
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

Sun Aug 13, 2017 4:42 am

jwarcd wrote:Line 104 Update

Had one M210 inverter fail last week. At first it had a couple of GFI errors that I reset, but now it's totally offline.

System History: The 20 M210 inverters were originally installed on 8/2011, but after 10 failed inverters Enphase agreed to replace all the inverters with new M210s in 8/2014.
Thanks for the update. Based on what you wrote here and your post on October 19, 2016, I decided to split your system into two lines: one for the first three years of M210 and one for the time since then with the new inverters.

Can you please confirm which date they were replaced? I have looked at every day in August 2014 and I don't see any day where the array was entirely off. TIA!
jwarcd wrote:I hope history is not repeating itself...
I don't think it is. During your first three years, you lost 10 inverters (half of the total). During the last three years, you only lost one.[quote="jwarcd"]Any success getting this replaced? Note that you can no longer report failures via email: you need to call them.

If they did replace your inverter, can you tell me what they sent instead? (I'm going to guess an M250 for 72-cell modules.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 5583
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

Sun Aug 13, 2017 5:00 am

sandeen wrote:In case you're still interested, I've lost 2 M190s in about 7 years, here is my array.
Thanks! I have added your array in Rows 110 and 111. Calculated MTBF for your system is 36 years, which is identical to the average for the M190s that I have in the spreadsheet.

Please check my entries and ensure that there are no mistakes.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 5583
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

Sun Aug 13, 2017 11:23 am

GetOffYourGas wrote:I was chatting with my friend (not a member of MNL) about your spreadsheet, and how I have 4 of 6 known M215 failures. He was intrigued, and gave me permission to give you info to add to your spreadsheet.

His public envoy site: https://enlighten.enphaseenergy.com/pv/ ... 9/overview
Located in Clay, NY
In service since 8/9/2011
Consists of 24x Suntech STP225-20/Wd modules mated with 24 M215 inverters

No failures to date.
Thanks, Brian! I've added your friend's system on the line below yours. I don't know how to break this to you, so I'll just blurt it out: Your friend's system has an MTBF 6.4X as high as yours. :shock:
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 5583
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

Sun Aug 13, 2017 11:29 am

Tracksyde wrote:Update for lines 204-206 - no issues with any of the 3 systems (all S280s)
Thanks. I've updated those three lines (now rows 208-210). The MTBF for the S280s is now above 42 years.
Tracksyde wrote:I have a friend who just had a system installed with the new IQ6+. I dont have his public Enphase URL yet (it doesnt seem to be enabled, but his system ID is 1267857).

But if you want to add him now, he has 20x320W LG panels using IQ6+ and the compatible Envoy S. He's in Irvine, CA. His system was turned on 6/21/2017 at 2PM.
Thanks! I've added a new section for the IQ6+ inverters and stubbed it out with TWO lines of your friend's system split in half (so my equations have separate rows for start and stop). It would be great if you could get a public link for his system from him.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

User avatar
RegGuheert
Posts: 5583
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

Sun Aug 13, 2017 11:42 am

As far as my system goes, I have not had any failures since January when an M215IG gave up the ghost. Two more weeks before I will have gone an entire year without an M190 failures (with 12 operating here and 4 operating elsewhere).

I have just sold 20 of my old M190s to a friend. He will be putting them under 260W modules, which is higher power than any M190s listed in the spreadsheet. I looked carefully at the specifications and I do not see any specifications being violated. It will be interesting to see how they hold up. It's good to see these being put back to use!

So I'm now down to only 6 cold spares: 3 - M190s (56V), 1 - M190IG (48V), and 2 - M19072IGs (60V).

Anyone else want to provide an update on your system, good or bad?
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

GetOffYourGas
Posts: 1649
Joined: Tue Dec 20, 2011 6:56 pm
Delivery Date: 09 Mar 2012
Location: Syracuse, NY

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

Mon Aug 14, 2017 7:27 am

RegGuheert wrote:Thanks, Brian! I've added your friend's system on the line below yours. I don't know how to break this to you, so I'll just blurt it out: Your friend's system has an MTBF 6.4X as high as yours. :shock:


Yeah, I knew he was much better off than me.

My installer took his sweet time getting out to my place with the new inverter. He finally came last week. To add insult to injury, he replaced the wrong inverter! So he took down a perfectly operational one and left up the broken one :evil:
~Brian

EV Fleet:
2011 Torqeedo Travel 1003 electric outboard on a 22' sailboat
2012 Leaf SV (traded for Bolt)
2015 C-Max Energi (302A package)
2017 Bolt Premier

User avatar
RegGuheert
Posts: 5583
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

Mon Aug 14, 2017 10:03 am

GetOffYourGas wrote:My installer took his sweet time getting out to my place with the new inverter. He finally came last week. To add insult to injury, he replaced the wrong inverter! So he took down a perfectly operational one and left up the broken one :evil:
Unbelievable!

Perhaps that one was easier to get to... :roll:
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

Supersleeper
Posts: 79
Joined: Mon Aug 07, 2017 10:04 am
Delivery Date: 06 Aug 2017
Location: SF Bay Area

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

Fri Aug 18, 2017 6:44 pm

Hi Folks,

Proud Leaf owner, and have been an Enphase customer now for about 5yr. I've got 24x M215 and so far they've been great in modest weather of California. Just looked at my specs today:


Lifetime
41.6 MWh
287%
of estimated

Wow! that's a lot of power for a household. But I'm a techie, so my bill would be upwards of $300 for electricity alone before installing solar. Now my NEM is only $300 a year! Afterwards, my loan was only $135 a month! I'm almost paid off now, and I may even consider supplementing with a DIY Powerwall, or even a Tesla Powerwall if I can get it cheap enough to offset my Leaf charging.

Return to “Solar”