New Install 72Cell Panels with a mix of SolarEdge P320/P400 micro inverters?

[sandbagger]

Company installed my system a few weeks ago and the other day I ran the comissioning report from the solaredge website and noticed something strange that I cant find an answer.
System is SolarEdge SE500H Inverter16 Jinko JKM310P-72 panels(310W) but the report says they used 3 different micro inverters (1) P400-5NC4ARM-NA21 (12) P320-5NC4ARS-NM26 (3) P320-5NC4ARS-NA29 shouldnt they all be P400? All I can find out from the data sheets is the P400 are for 60 or 72 cell Panels and the P320 says for 60 cell panels. Also does anyone know what the last 4 digit code means as I could not find anything on that.

I also think that they did not do the physical layout vs the logical layout as the physical would have connections zig zagging all over the place. I would expect them to be next to each other

[ButchDeal]

Company installed my system a few weeks ago and the other day I ran the comissioning report from the solaredge website and noticed something strange that I cant find an answer.
System is SolarEdge SE500H Inverter16 Jinko JKM310P-72 panels(310W) but the report says they used 3 different micro inverters (1) P400-5NC4ARM-NA21 (12) P320-5NC4ARS-NM26 (3) P320-5NC4ARS-NA29 shouldnt they all be P400?

OK first and for most SolarEdge does NOT make any micro inverters. The P320 and P400 are OPTIMIZERS.

So you have an SE5000H with 16 Jink JKM310P-72 modules

The P320 is for 60 cell PV modules. The P400 is for 72 Cell modules (which you have).
That said your Jink modules are within the operating range of the P320 optimizers and should work fine.

I also think that they did not do the physical layout vs the logical layout as the physical would have connections zig zagging all over the place. I would expect them to be next to each other

That is possible. Many installers use skip wiring which has every other module wired together, or a more complex method working with two rows.

[sandbagger]

Yea, meant to say Optimizers
From the data sheets on the panels and the P320's it looked like they were still in spec but was wondering if there was a method to the madness of using 3 different inverters.

It is not any skip wiring, its an 8X2 grid if you number the logical as 1-16 in order the physical layout is Top row 9,11,16,8,3,5,10,6 bottom row is 7,4,14,13,12,15,2,1
I did watch the install and I seem to remember them just conecting all the optimisers one into the next one, cant remember where they started.stopped though.

[ButchDeal]

Yea, meant to say Optimizers
From the data sheets on the panels and the P320's it looked like they were still in spec but was wondering if there was a method to the madness of using 3 different inverters.

It is not any skip wiring, its an 8X2 grid if you number the logical as 1-16 in order the physical layout is Top row 9,11,16,8,3,5,10,6 bottom row is 7,4,14,13,12,15,2,1
I did watch the install and I seem to remember them just conecting all the optimisers one into the next one, cant remember where they started.stopped though.

Well two are the same P320 and likely come from old stock the installer had laying around.
It sounds like your installer is a bit lazy and didn't take the full location of all the optimizers so they just randomly put them into the layout. If you have any shadows you can watch the daily playback and see. You should see the shadow slide across the roof through the day. If not you can put something over one of the PV modules and see if the right one is showing decreased production on the layout.

[sandbagger]

Butch Thanks

on the P320's I was wondering that exactly, or if it was some different model like longer lead wires or something.
Hard to get up on my roof as its a 45deg pitch, not exactly fun. As for the shade after going back and looking at the physical layout they might be in the right order. The left most 2 do get some late evening shade from a chimney and they do go down. But I think the logical layout is a mess
I had asked for the serial # and positions of all the panels and Optomizers but havent gotten them yet

[ButchDeal]

Butch Thanks

on the P320's I was wondering that exactly, or if it was some different model like longer lead wires or something.
Hard to get up on my roof as its a 45deg pitch, not exactly fun. As for the shade after going back and looking at the physical layout they might be in the right order. The left most 2 do get some late evening shade from a chimney and they do go down. But I think the logical layout is a mess
I had asked for the serial # and positions of all the panels and Optomizers but havent gotten them yet

Logical layout is often skipped it is physical that is important.

You could use a pole with a bit of cardboard taped to it to shadow modules...

[sandbagger]

Logical layout is often skipped it is physical that is important.

You could use a pole with a bit of cardboard taped to it to shadow modules...

I am going to need a snow brush anyway ( Detroit Area)

going to let it run as is and see how I am doing, its a 5KW system on a SE5000H inverter and I have room for up to 8 more panels. Right now I am peaking at about 3.8kW and only twice have I seen anything over 4 as in like 4.1 I think since I am capped it would be better to just let it clip some, but stay under the 155% of the inverter