Steve's Blog

Trunsun Solar PV Panels

My solar installation has Trunsun Solar Panels installed.

They are 190 Watt monocrystalline panels.

Here are the specs.

 

 

I have 9 of these panels for 1.710kW. The specs for my system are:

 

9 Comments to Trunsun Solar PV Panels

1. 

   Hi there.
   How are the Trunsun panels going? We are looking at purchasing some but have found very little feed back on them.
   Cheers
   Dave
Dave on April 21st, 2013
2. 

   Hi Dave,

   I have no complaints about the Trunsun panels. Although it’s only been nearly 2 years since they were installed. 23 years to go to see if they’re still outputting at least 80% of the name plate specs.

   A couple of weeks after having the Trunsun panels installed, I put a row of 9 X NESL DJ-190D/A panels directly below the Trunsun panels and monitor each row independently.

   The Trunsun panels generate a couple of percent less energy per day compared to the NESL panels. (Although I haven’t tried swapping the inverters over to see if one of the inverters is reporting a higher or lower figure compared to the other – the couple of percent maybe a component or calibration difference in the inverters. I should swap them over and see if the NESL’s stay above the Trunsun’s).

   You can see the difference here on PVOutput.org by comparing Underbank 1 and Underbank 2. http://pvoutput.org/compare.jsp?sid=2202&sid1=1608

   But no real complaint about the Trunsun – the price was right at the time.

   Good luck,

   Steve.
Steve on April 21st, 2013
3. 

   Hi Steve are they still going strong?
Maaike on June 28th, 2014
4. 

   Hi, they’re still going strong.

   The inverter they were on failed in August 2013, so I put another Eversolar TL1500AS inverter on the string and the NESL panels are still slightly out performing the Trunsun panels as per this link. http://pvoutput.org/compare.jsp?sid=2202&sid1=1608

   Regards,

   Steve.
Steve on June 28th, 2014
5. 

   Hello Steve,

   Nice test,
   Could it be that the temperature of the upper panels is higher
   than the lower panels, due to convection, the lower panels get
   the colder air from below?
   I am wondering for this effect in general.

   Regards,
   Paul
Paul on January 28th, 2015
6. 

   Hi Paul,

   You could be onto something about the temperatures. I’ve never measured them and hadn’t thought about it as the performance difference is pretty much the same all year round.
Steve on January 29th, 2015
7. 

   Hi Steve,
   I just wanted to drop you a line to say ‘THANK YOU’ for posting the workshop and users manuals online.
   I recently (January 2015) bought a 2001 Suzuki TL 1000 S with 300 (three HUNDRED) km on the clock. This bike was registered in August 2002 by a crazy guy who rode a few times, did not like the bike and put it into his store room.
   The guy is now in a retirement home and his daughter is selling his stuff – lucky me… I paid the equivalent of US$ 1,000.00 for the old lady but we could not find the manuals….
   Thanks again
   Errol
   Mossel Bay
   South Africa
Errol on January 29th, 2015
8. 

   Hi Errol,

   That sounds like a real good score and bargain. I’m glad you were able to find my TLS pages and they helped. Steve.
Steve on January 29th, 2015
9. 

   Paul,

   I was just looking at a photo of my installation and there is a decent gap between the rows of panels. I have access to a Flir thermal imaging camera at work. I think I’ll bring it home and take a few shots when the sun is out to see if I can learn anything.

   Steve.

   click for a bigger one

   

   http://wotid.com/pictures/albums/userpics/10002/pv_panels_800.jpg
Steve on February 2nd, 2015

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