Module brands to avoid?

five.five-six

Senior Member
Location
california
So, I’m doing my first system design. I’m leaning toward SolarEdge for inverter and optimizers but now I’m looking at modules and wow, there are a lot of them. Researching each module is time consuming to find a good fit and value. I’d really like to know of some manufactures to just skip over and save time.

TIA
 

pv_n00b

Senior Member
Location
CA, USA
Just avoid the no name cheap modules, the name brand modules are all pretty good and have good support from the manufacturers. When I hear of someone having problems with modules it's because they got a "good deal" on some no name garbage modules from a manufacturer who was gone the next day. I remember a guy who got a whole 40' shipping container of modules from China that ended up being worthless, but it was a good deal that he could not pass up. I think he ended up making tables out of them.
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Electrical Engineer - Photovoltaic Systems
Just avoid the no name cheap modules, the name brand modules are all pretty good and have good support from the manufacturers. When I hear of someone having problems with modules it's because they got a "good deal" on some no name garbage modules from a manufacturer who was gone the next day. I remember a guy who got a whole 40' shipping container of modules from China that ended up being worthless, but it was a good deal that he could not pass up. I think he ended up making tables out of them.
One thing to watch for is the lack of the UL listing logo.
 

BandGap1.1eV

Member
Location
East Coast
It would be very difficult to list manufacturers to avoid. New names/manufacturers pop up on a monthly basis. In general look for the UL mark on their data sheet, modules with MC4 or amphenol branded connectors are preferred (rather than MC4 equivalent), minimum 10 year product/25 power warranty, mono-crystalline preferred.

Check the install manuals to be sure the wind/snow loads work for your area and the desired mounting configuration/orientation is permissible.
 
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