Consumption readings not accurate - AC coupled system

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Alex Manley asked May 16, '22

Consumption readings not accurate - AC coupled system

Hi there Guys

I have an off grid system.

With a Quatro 8 kW and MPPT on the shed.

and a AC coupled fronius inverter on a house sub board 20 meters from the shed.

It seems that the consumption monitoring on VRM is not showing the gross consumption of the loads. Just the net. (after the fronius inverter has fed the load at the house).

Do I have to install a meter at the house sub board where the fronius inverter is to get a more accurate reading?.

Thanks for your help in advance

Regards Alex

monitoring ac coupling

screenshot-2022-05-16-112734.jpg (36.6 KiB)

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Modifications Space

Node Red Space

Answer 1 · 2022-05-16T07:55:24Z

Anold Pande answered · May 16, 2022 at 07:55 AM

Hi Alex Hope u r well. Which GX are u using and s the software up to date on all products

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Answer 2 · 2022-05-16T08:59:34Z

Alex Manley answered · May 16, 2022 at 08:59 AM

Hi there Arnold

Thanks for your help.

We are using the Color Control

I have updated the software. I think i found the problem though.

Had accidently programmed the AC coupled fronius on the input to AC1 not the output side of AC1 .

Swapped over . Will check tomorrow when the inverter is charging and let you know how it went.

Thanks for your follow up .

Regards Alex

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