Reading inverter / MPPT working temperature

Dear forum of Victron Energy, hello everyone, here is Leonardo from Italy

I'm investigating around a possible issue in my 8 years old PV system

Recently I have a drop power production on solar power. In the past I had peak of production up 3600-3800W, actually not over 2600W

My suspicious is about temperatures. I don't think to have broken or faulty pannels (I've only give it a look but I need to check yet, I'm busy in these days and I'm waiting my holidays to check panels one by one ). These days in my area there are been over a month of sunny days with temperatures over 38°C and the installation room of my system have 5-6 °C above the usual for this period of the year

Waiting to check PV on the rooftop, is possible to read temperature from remote of the inverter ( like IGBTs or others sensors ) and Bluesolar MPPT? Just to checking if the units are working in temperature power limiting area

Thanks for support, Regards

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Fideri commented · Jul 28 at 10:33 AM

@Leonardo Belia

Have you read this and many other relevant threads?

https://community.victronenergy.com/questions/1845/mppt-internal-temperature-and-throttling-informati.html?childToView=313194#answer-313194

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leonardo-belia Fideri commented · Jul 28 at 11:06 AM

Thank you for your reply. So seems no way to reading internal temps directly from interfaces/gx/vrm, specially on newer mppt

Just a question, if you know, working temperatures reported on manuals, are mean for ambient temperatures?

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Fideri leonardo-belia commented · Jul 28 at 11:29 AM

@Leonardo Belia

If your MPPT has an LCD display, you can read its temperature there.

It remains unclear whether we are talking about ambient temperatures or internal temperatures. People have a divided opinion. I suspect it's internal temperatures. Victron should be able to clarify and stop the speculation but as far as I know, they have chosen to remain silent.

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