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Hoymiles MI Performance in High Ambient Temperature


Stef
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morning Stef

I have an example of a temperature of 76 degrees (just over 30 degrees in the shade), and it seem to be working fine.  We have a few hot days coming up and I will see if i can find something over 80 for you?

Barry 

 1166658346_maxpower.thumb.JPG.eb7fd710e4b56f1281f1e4b2dcfad3d2.JPG

169204120_11am2Kw.thumb.JPG.c7b2774a4918b20637527b5c83173d03.JPG

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2 hours ago, BTFD said:

morning Stef

I have an example of a temperature of 76 degrees (just over 30 degrees in the shade), and it seem to be working fine.  We have a few hot days coming up and I will see if i can find something over 80 for you?

Barry 

 1166658346_maxpower.thumb.JPG.eb7fd710e4b56f1281f1e4b2dcfad3d2.JPG

169204120_11am2Kw.thumb.JPG.c7b2774a4918b20637527b5c83173d03.JPG

@BTFD what brand inverter and program are you using to get the data? 

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Hi Gerlach

thank you or your questions

 

I have HOYMILES GRID TIE MICROINVERTERS the 1 200W type.  

 

There 3 different ways I check the data.

While on the local network I can access the HOYMILES DTU

when away I use the internet to access either via the Hoymiles end user app

or

I use the world.hoymiles.com web site

 

i have attached a screen shot from each below.  Please let me know if you need more info?

 

Looking at the data, looks like i am going to meet to add batteries!  Even with just 8 solar panels, I am finding the inverters are shutting down as I am not using the power.  Any suggestions would be welcomed!

It is either batteries or some intelligent system that can determine / see there is excess power and turn on the multiple geysers I have on the property? 

only inv 1 working.JPG

now both off.JPG

app.jpg

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Hi Barry

That is interesting, I would like to know the placement of your inverter?

 

 Mine is currently mounted on my corrugated roof, underneath the solar panel. at around 36 degrees C under the panel, the inverter gets quite hot (85 Deg C). I have lifted the solar panel and increased the clearance, it is now maxing out at around 81 degrees. Adding a small USB fan(experimenting) makes a huge difference (at least 10 deg C drop).

 

I am wondering if mounting the inverter vertically will improve natural airflow. Mine is currently horizontally mounted with the silver side up as per the manual.

I would suggest to install sonoff wifi switches for the geyser (just check your geyser amp draw to select the right switch) and switch the geyser on your phone as you monitor your solar yield and usage during the day.

I am planning to install a victron multiplus (for storage) as I have heard on this forum that it works well with Hoymiles

Regards.

Stef 

 

 

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