OMG, something else has gone wrong

[Mrjmegson]

What is happening, everything is going wrong.

So you guys might already know that I had to change my inverters as I was struggling to find compatible batteries, so I bought a full system from AllGreen Energy.

I thought I'd check the input stats, as the PV Amps were right on the limit with the other inverters, and I stupidly didn't think of this before, as I just thought a 6kw inverter would be fine with a 6kw array.

Now my panels are 400w, at 10.5A, and the inverter max input is 18.5A per string, so this is absolutely fine.

My issue is the voltage. The inverters say Max PV voltage 550V, and Full MPPT range 170v to 500v. My panels are 38.1V each, with two strings of 8 panels giving me 305V per string, 610V total.

All stats for both panels and inverter are attached as screenshots.

Am I screwed?

 

[johnb2713]

Surely thats fine, 305v per string, each string onto an MPPT input? Maybe I havent understood your concerns?

 

[Mrjmegson]

Am I misreading it John? I hope so.

I took "Full" MPPT range, to mean the total of the two, especially as the Max input is only 550V.

I really hope it's me reading it wrong.

 

[johnb2713]

Am I misreading it John? I hope so.

I took "Full" MPPT range, to mean the total of the two, especially as the Max input is only 550V.

I really hope it's me reading it wrong.

Youre reading it correctly but interpreting it wrong IMHO, each channel of the MPPT can have 550v

 

[Mrjmegson]

John, I love you!

I've never been so pleased to be told I'm wrong.

Thank you.

My doubt came from the wording and the fact they say the max input current is 18A X 2.

Not a well written manual.

But a 6kw inverter will always have that sort of power coming into it, so it has to be per MPPT.

Thanks again, as always you're a legend.

 

[johnb2713]

John, I love you!

I've never been so pleased to be told I'm wrong.

Thank you.

My doubt came from the wording and the fact they say the max input current is 18A X 2.

Not a well written manual.

But a 6kw inverter will always have that sort of power coming into it, so it has to be per MPPT.

Thanks again, as always you're a legend.

Legend in my own lunchtime!

You’re very welcome to the bit that I know.

 

[Mrjmegson]

Legend in my own lunchtime!

You’re very welcome to the bit that I know.

It's MASSIVELY appreciated.

 

[Mrjmegson]

From the horse's mouth, and in writing should anything go wrong.