Inverter temperatures & location

Magnitio

EcoScruples said:

I assume those stats are in the installer login using a web browser?
Very useful indeed and will save me using a separate thermometer.

They are also available on the app, but I don't know whether they are exclusive to installer login. If you have the options, select Devices->Inverter->Historical Info->Signal type (Temperature)->Signal point (Device internal temperature) and it will prodcuce a graph. It is easier through the browser though.

EcoScruples

Highest temperature seen so far, I found the stats in the standard app access. Should I be worried?

Spies

No that's within tolerance. 

Surely the inverter will shut down anyway if it overheats? 

EcoScruples

I'd have thought so yes, I was more worried about it derating itself but I've checked the efficiency curve and it's bang on 100% all day apart from when it kicks in at 5.30am.
It'll get a good test this Friday when the outside temp will be 30 degrees C.

Spies

Mines never shown over 60c but the roof its under is covered with panels. 

Magnitio

EcoScruples said:

Highest temperature seen so far, I found the stats in the standard app access. Should I be worried?

It would be useful to see temperature against active power as that is what generates the heat within the inverter. The Huawei inverter is fanless, so it does rely on the heatsink to radiate the heat that has been generated and a high ambient temperature in the loft mid-afternoon won't help. Below is my graph for today, peaking at 47 degrees.

EcoScruples

I can't plot both on the same, graph from the app but here you can see it ran quite happily well into the 50's at max power for quite some time, the drop after 3pm is probably the scaffold still in place giving some shade across a few of the panels.

Magnitio

So the inverter had been running at full capacity for about an hour when it reached max temperature. I guess Friday will be the test as to whether the inverter reduces its output if internal temperatures get any higher.

EcoScruples

I have seen a 61 degrees temp today and it's still pumping out 3.5kw.

I have a hand over meeting next week with my installer so I'll ask them about it then but from the trends it looks like it's unaffected.

2nd_time_buyer

I wonder how the inverter efficiency is affected by temperature. 

If it is at 61 degrees with a fan(?). Then you think it must be kicking out a good few hundred watts.