User avatar
RegGuheert
Posts: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Wed Feb 08, 2017 7:13 am

SageBrush wrote:Reg,
Do you know details about the 1500 watt supply from the PV when the grid-tie is down ?

I'm wondering what extra needs to be bought/installed to have the feature,
and whether the power can be sent into the home automagically.

Addendum:
One SE csr told me this feature is unheard of;
The second one said it has been delayed.
We discussed this feature briefly over on the SolarEdge HDWave thread. I would love to have something like that, even if it was just a plug on the front of the unit.
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: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Thu Feb 09, 2017 7:29 am

RegGuheert wrote:Yeah, it looks like it may have been shipped using FedEx "SmartPost". FedEx always pads their estimate by a day to cover for the U.S. Postal Service. Since the package is now in the local area, I expect it will be delivered tomorrow instead of Thursday. We'll see.
Well, it DIDN'T go FedEx "SmartPost", but FedEx still managed to hold the package for an additional day. Here is the last bit of the package's travel history:

Code: Select all

20170209 - Thursday
- 7:03 AM: On FedEx vehicle for delivery       Winchester, VA
- 6:08 AM: At local FedEx facility             Winchester, VA
- 6:08 AM: At local FedEx facility             Winchester, VA
20170208 - Wednesday
- 8:52 PM: Departed FedEx location             Hagerstown, MD
- 2:53 PM: Arrived FedEx location              Hagerstown, MD
- 9:51 AM: In transit                          Hagerstown, MD
20170207 - Tuesday
- 9:50 PM: In transit                          Hagerstown, MD
- 6:36 AM: In transit                          Hagerstown, MD
20170206 - Monday
- 6:29 PM: In transit                          Cambridge, OH
- 5:24 AM: In transit                          Waynesville, MO
...

Note that it sat in Hagerstown, MD, from AT LEAST 6:36 AM Tuesday until 8:52 PM Wednesday. It certainly could have been sent down to Winchester, VA, on Tuesday night instead of Wednesday night. I had always thought that holding packages was one of the cardinal sins of logistics since it meant having additional warehouse space. Perhaps I misunderstood.

It's no big deal since I really only need it here for the cardboard box for shipping the broken unit out. The new M215IG will go directly into storage as a cold spare.

Again, I am happy to have the spare because it is cold and windy outside today so it was nice to have installed the spare when the air was still and pleasant. If you did your own Enphase install, then my recommendation is to pick up a single spare from eBay to have on hand. You can get a NEW fourth-generation inverter (M215IG or M250) shipped for right around $100 today, if not less.
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

SageBrush
Posts: 1217
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Thu Feb 09, 2017 10:22 am

RegGuheert wrote:Well, it DIDN'T go FedEx "SmartPost", but FedEx still managed to hold the package for an additional day.
I've seen similar, that the last leg to the destination can take days. I agree with you that it feels like a bug in the system. That, or FedEx is playing games to encourage use of more expensive options.
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

User avatar
RegGuheert
Posts: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Thu Feb 09, 2017 6:35 pm

FedEx delivered the inverter to the wrong house. :evil: I wonder which of my neighbors' houses received my M215IG. Hopefully it is "at front door" with a covering overhead. Otherwise it is getting buried in snow as I type.
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: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Fri Feb 10, 2017 8:05 am

RegGuheert wrote:FedEx delivered the inverter to the wrong house. :evil: I wonder which of my neighbors' houses received my M215IG. Hopefully it is "at front door" with a covering overhead. Otherwise it is getting buried in snow as I type.
My neighbor across the street brought it over right after I called FedEx.

Anyway, the unit was manufactured in week 50 of 2016, which was a bit of a surprise to me. Perhaps Enphase has not commenced manufacture of the S230s yet? This unit came in a different box than all previous inverters, even though it is physically the same as the last two M190IGs which I received in 2016. The only differences are that it does not have the extra cable included (which would easily fit in this box) and it does not need to hold an old-style M190 for the return trip.

This unit is a replacement for an M215IG which was manufactured in week 45 of 2015, so it is just over one year newer. That said, the assembly part number has changed between the two:

1215450XXXXX: 880-00100-r15
1216500XXXXX: 880-00179-r11

The only difference I can notice is that the peelable label containing the serial number is rotated 90 degrees from the older unit.
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
TickTock
Posts: 1701
Joined: Sat Jun 04, 2011 10:30 pm
Delivery Date: 31 May 2011
Leaf Number: 3626
Location: Queen Creek, Arizona
Contact: Website

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Tue Feb 14, 2017 9:18 pm

You can add the following to your dBase:\

location: AZ, Queen Creek
PV Module Power: 260
# inverters: 42
Type: M250
Activation date: 1/18/2017

User avatar
RegGuheert
Posts: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Wed Feb 15, 2017 5:57 am

TickTock wrote:You can add the following to your dBase:\

location: AZ, Queen Creek
PV Module Power: 260
# inverters: 42
Type: M250
Activation date: 1/18/2017
Thanks! That looks like a nice system! I added it to my spreadsheet in row 164.

Your system has put the MTBF of the M250s just over 300 years. Given the number of M250s we are currently tracking, we should have a pretty good number for the M250s in the next couple of years.
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

amperedave
Posts: 2
Joined: Sun Feb 19, 2017 6:12 pm
Delivery Date: 20 Feb 2017

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Sun Feb 19, 2017 6:40 pm

I installed 24 - M190-72-240-S12 with 230w panels on my roof in 2012. Had 11 - M190-72-240-S12 die in 2016. Enphase replaced them with 11 -M190240-M190IG-R & M190-R-1
3 of the replacements M190240-M190IG-R died also in 2016. Enphase replaced them with 3 - M190240-M190IG-R.
That made a total of 14 - replacements in 2016.
I hoped 2017 would be better, but had 2 - M190-72-240-S12 die in 2 months & Enphase replaced them with 2 - M190240-M190IG-R.
I've had no problems with Enphase replacing them! Just the trouble of climbing on roof to replace the dead ones.
I live in Fl and wonder if the heat is a problem?

User avatar
RegGuheert
Posts: 5544
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Sun Feb 19, 2017 7:40 pm

amperedave wrote:I installed 24 - M190-72-240-S12 with 230w panels on my roof in 2012. Had 11 - M190-72-240-S12 die in 2016. Enphase replaced them with 11 -M190240-M190IG-R & M190-R-1
3 of the replacements M190240-M190IG-R died also in 2016. Enphase replaced them with 3 - M190240-M190IG-R.
That made a total of 14 - replacements in 2016.
I hoped 2017 would be better, but had 2 - M190-72-240-S12 die in 2 months & Enphase replaced them with 2 - M190240-M190IG-R.
I've had no problems with Enphase replacing them! Just the trouble of climbing on roof to replace the dead ones.
I live in Fl and wonder if the heat is a problem?
I'm sorry to hear about all the failures with your M190s. Your MTBF during 2016 is only 1.7 years, which is, by far, the worst MTBF I have recorded for Enphase microinverters.

I have just recently experienced the very first failure of any fourth-generation Enphase microinverter that I know of in January. (The three in my spreadsheet from North Syracuse, NY, were early-build M215s, which I believe contain third-generation electronics similar to the original M190s.) But you had 3 M190IG-Rs die in 2016. Those are fourth-generation inverters. As such, I have to believe that one of three things is occurring:
1) You get hit by lightning frequently (or perhaps you have nearby lightning strikes).
2) There are some issues with grounding in your system. (Even if your system does not have a problem in this regard, the Engage adapter which comes with the M190IG-R inverters does NOT have a way to carry the internal ground into the module AND there is no grounding lug on the inverter case, so I have wondered how these units manage to get grounded in most systems.)
3) Your PV modules have 72 cells instead of 60.

FWIW, another poster here from FL (Weatherman) has most of his M190s replaced a couple of years ago (2014?). Based on his experiences, I had predicted that I would have a spate of M190 failures in 2015. Fortunately, I was incorrect. Only one M190 failed in my system that year. I only had two M190s fail in 2016, but that is partially due to the fact that I replaced most of them with newer inverters in the middle of the year.

Can you please provide a link to your system so that I can add it to my spreadsheet (linked in my signature)?
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

amperedave
Posts: 2
Joined: Sun Feb 19, 2017 6:12 pm
Delivery Date: 20 Feb 2017

Re: Enphase field MTBF: M190: ~44 Years M215: ~470 Years M250: >275 Years

Mon Feb 20, 2017 2:41 pm

location: FL
PV Module Power: 20-230 60cells / 4-240 60cells
# inverters: 25 24 & 1 spare
Type: M190
Activation date: 12/28/11

I'm electrician, inverters are grounded properly. I have a hospital grade surge suppressor on my electrical panel. We have many lightning strikes in this area, but haven't had any direct hits. The surge suppressor should take care of voltage spikes on my grid. All my panels or 60 cell.
In January 2016 I have been noticing an output drop in kilowatts over the last six months. I was using a TED 5000 that gave me a kilowatt output for my total system. I got on the roof and started checking the M1 90s and Saw that many of them had died. So I bought an envoy to check each M190. I replaced eight in January 2016. And you know my history from my last post.

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