Seems MPP dropped a new inverter...a split phase 10KW

[G00SE]

It's very straightforward and logical

I agree with all but this lol. I find logic perceivably absent in many recent events in the solar world

 

[Will Prowse]

Imagine you are a distributor, and you have to purchase large orders of these products. Millions of dollars worth. Would you put your money into an order when you see all the issues that have happened?

 

[Will Prowse]

I agree with all but this lol. I find logic perceivably absent in many recent events in the solar world

Haha sadly true

 

[Zwy]

When did I say that it was a single thing? I listed out multiple reasons and you're saying that I said a singular reason? Can you please explain your logic on this response. I don't understand

I think you and I are on the same page, it was several factors that contributed to that dumpster fire.

What I don't understand is how a company could build a very solid proven product and then manufacture it under a different house brand and it ended up a total disaster. There were some changes in specs and given it had to meet a price point plus someone mentioned manufacturing moved from Taiwan to China, probably those factors plus a few more contributed to the decline.

 

[Will Prowse]

I think you and I are on the same page, it was several factors that contributed to that dumpster fire.

What I don't understand is how a company could build a very solid proven product and then manufacture it under a different house brand and it ended up a total disaster. There were some changes in specs and given it had to meet a price point plus someone mentioned manufacturing moved from Taiwan to China, probably those factors plus a few more contributed to the decline.

Oh right, yes of course. It's hard to know what happens overseas too. Perhaps the management changes and we didn't know. The CCP does manage and control the solar industry. Must be something going on to cause all these issues.

 

[Zwy]

People speak of the older gen MPP Solar being of better quality. Does anyone know of a way to tell which hardware is considered the earlier gen equipment? Like based on serial number or something. Mine are LV6548s...

Use the ones you have and when you want to replace, use something different is my approach. Things have advanced considerably.

I asked Ian if he had any pre 2022 LV6548's left as I might want a spare and he only responded he had plenty of units to sell. Considering the changes with the 6500EX and the LV6548V, I would not buy anything newer than 2022 manufacture date.

 

[Zwy]

In all fairness the reliable MPP models that have been mentioned previously never needed any firmware updates out of the box that I am aware, whereas the others needed necessary updates to make them function as designed.
I wouldn't hesitate to power up my TP6048 / LVX6048 with years old firmware and run my house if my ASF were to fail (it also has no firmware updates installed with close to 2.75MWh pv through it.

Yes, I purchased the pair in November 2021. I installed these while the EG4 6500EX were sent in under RMA for replacements, then installed them again after sending the replacement 6500EX's back. Original firmware and no other changes were made, the LV6548's worked flawlessly and on the original firmware, they have powered my house non stop since.

Somewhere along the way when the 6500EX was built, things changed and then it was firmware to try to correct it. Firmware can not fix faulty hardware, the scope waveforms show there was faulty hardware. That is a manufacturer problem, either substitution or their supplier changed the product.

 

[Zwy]

Imagine you are a distributor, and you have to purchase large orders of these products. Millions of dollars worth. Would you put your money into an order when you see all the issues that have happened?

When MPP started selling direct and left the distributors high and dry, that was when I decided I probably won't be purchasing their products. I know back when MPP first came out with these units and Filter Guy would ask MPP questions, he had a hard time getting answers. With direct selling, I can only imagine what a nightmare support must be now.

 

[Zwy]

And none of the luxpower models firmware updates are required to make them work as advertised. Unless someone can show me an example of that.

Wasn't there something about the zero export and that needed firmware changes to work correctly?

I believe Watts Happening had that thread.........

Not an issue if totally isolated off grid but someone like myself who does not have an interconnection agreement might find this a little troublesome without a firmware update.

But at the end of the day, would you risk buying millions of dollars of MPP inverters given what's happened? I don't know why people are surprised by this. It's very straightforward and logical

Unless MPP or Voltronic can come out with a product that advances the whole playing field, I doubt they will have much market share.

Maybe this latest product could do that considering the capacity for power when AC coupled but one has other choices with better support at this point. If I was a distributor, I'd treat MPP and Voltronic like they had the plague.

 

[OffGridForGood]

Maybe this latest product could do that considering the capacity for power when AC coupled but one has other choices with better support at this point.

So what can the new MPP "12kpv" /10kW-output do?
It has 1741 UL CSA certifications, and costs $1590 USD - it has grid interactive features (that I don't need personally) but many people want.
Is the new product an improvement, or a continued slide down the slope?

 

[42OhmsPA]

Yes agreed and you can't buy them anymore. Are you going to buy the new models?

Possibly but I'm currently very happy with my SRNE.
I'm following all of the new models closely since my next purchase will be something that is able to be ran in parallel, my only complaint about the current generation split phase ASF.

And none of the luxpower models firmware updates are required to make them work as advertised. Unless someone can show me an example of that.

I would have to do some digging back through threads but I'm 99% certain updates were required to get some features dialed in correctly when they first released.

But at the end of the day, would you risk buying millions of dollars of MPP inverters given what's happened? I don't know why people are surprised by this. It's very straightforward and logical

If I were a reseller trying to make a living absolutely not until I personally tested them and put them through the ringer. As already mentioned in the thread it isn't logical because MPP competes with it's distributors.
If I were a consumer with an addiction looking for a solid 'budget' model so I could dump more money in storage and generation, absolutely I'd gamble with one.

 

[Zwy]

So what can the new MPP "12kpv" /10kW-output do?

15Kw with AC coupling, a pair would be 30Kw.

It has 1741 UL CSA certifications, and costs $1590 USD -

30Kw with AC coupling for $3200. Compare to a pair of Sol Ark AC coupled. Or 18Kpv. The AC coupling ahead of the inverter doesn't matter for the comparison as you would have to purchase it with any choice.

That is just over $0.016 per watt of capacity.

it has grid interactive features (that I don't need personally) but many people want.

I don't need it, my use is off grid without interconnection agreement.

Is the new product an improvement, or a continued slide down the slope?

It can be tempting.

Just like wind......

Now someone knock me up on the side of the head for thinking about it.

I think when SRNE comes out with 10Kw units that can be stacked, that could be a serious game changer. I've been waiting for them to tell me they are now available. Whether the SRNE can be AC coupled remains to be seen.

 

[42OhmsPA]

Firmware can not fix faulty hardware, the scope waveforms show there was faulty hardware. That is a manufacturer problem, either substitution or their supplier changed the product.

Working in the automotive supply chain I can fully understand how this could happen.
Someone in upper management wants to cut costs somewhere in the chain and proper testing isn't done.
Run this batch of components at the bottom of the acceptable spec to save xx percent on raw material xx...
Purchase component x from distributor y because it's $0.03 cheaper and equates to xxx,xxx.xx savings per year but has a failure rate x% higher....

 

[1201]

15Kw with AC coupling, a pair would be 30Kw.

I don't see anywhere where it is capable of ac coupling. Do you mean the extra 5kw grid support?

 

[Zwy]

Working in the automotive supply chain I can fully understand how this could happen.
Someone in upper management wants to cut costs somewhere in the chain and proper testing isn't done.
Run this batch of components at the bottom of the acceptable spec to save xx percent on raw material xx...
Purchase component x from distributor y because it's $0.03 cheaper and equates to xxx,xxx.xx savings per year but has a failure rate x% higher....

The bean counters are the problem.

 

[42OhmsPA]

I think when SRNE comes out with 10Kw units that can be stacked, that could be a serious game changer. I've been waiting for them to tell me they are now available.

You and me both.

Whether the SRNE can be AC coupled remains to be seen.

From the link in this post I found some info on AC coupling the other day, but didn't look into it further.
Post in thread 'Need help choosing 48v all-in-one' https://diysolarforum.com/threads/need-help-choosing-48v-all-in-one.76898/post-1011522

 

[OffGridForGood]

15Kw with AC coupling, a pair would be 30Kw.


30Kw with AC coupling for $3200. Compare to a pair of Sol Ark AC coupled. Or 18Kpv. The AC coupling ahead of the inverter doesn't matter for the comparison as you would have to purchase it with any choice.

That is just over $0.016 per watt of capacity.


I don't need it, my use is off grid without interconnection agreement.


It can be tempting.

Just like wind......

Now someone knock me up on the side of the head for thinking about it.

I think when SRNE comes out with 10Kw units that can be stacked, that could be a serious game changer. I've been waiting for them to tell me they are now available. Whether the SRNE can be AC coupled remains to be seen.

I have been told they will have a stacking unit early this year, will be interesting to see those. Although I was told 8kW not 10kW, maybe I misunderstood thou. Wait and see!
I would like to see someone with the MPP post what they find from running it.
It is easy to ask for the manual and review the specs, it is a lot harder to know if the software will be trouble or how it will work in the long term.
I don't want to be the beta tester - I perfer to to let early adopters report back on success or failure. Learn from others.

 

[Zwy]

I don't see anywhere where it is capable of ac coupling. Do you mean the extra 5kw grid support?

Yes, 5Kw grid support. Run it as AC coupled. Might have even been you that gave me that idea in another thread. Of course, only during daylight and would probably have to overpanel.

 

[1201]

Yes, 5Kw grid support. Run it as AC coupled. Might have even been you that gave me that idea in another thread. Of course, only during daylight and would probably have to overpanel.

Oh I see. So not true ac coupling where this inverter can throttle a pv inverter but you can add another inverter as the grid and get another 5kw, actually 24/7 if your want.

 

[Zwy]

I have been told they will have a stacking unit early this year, will be interesting to see those. Although I was told 8kW not 10kW, maybe I misunderstood thou. Wait and see!

They informed me on Jan 21st it would be available in a month.

They told me 10Kw and that was SRNE on Alibaba. I used the SRNE store.

I would like to see someone with the MPP post what they find from running it.
It is easy to ask for the manual and review the specs, it is a lot harder to know if the software will be trouble or how it will work in the long term.
I don't want to be the beta tester - I perfer to to let early adopters report back on success or failure. Learn from others.

You and me both. If I monetized my Youtube channel I could afford testing.

Not happening, I do it for fun and to show others ideas to use plus share information like this forum.