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Tesla introduces new 420W solar panel

pdx_m3s

Active Member
May 18, 2019
1,369
1,242
Portland, OR
About a year after introducing the current 340W panel, Tesla is introducing a new, larger, 420W panel. This one is branded as a Tesla panel, and is likely a custom, contract-manufactured panel (I would assume by Hanwha). I don't think Tesla is making their own panels.

Similar efficiency, just larger. Tesla launches new 420-watt solar panel, setting 'high' mark

Edit: Looks like an all-black Q.Cell L-G8.2 utility-scale panel with a slightly different outer frame for roof attachment.

Screenshot 2021-07-14 081736.png
 
Last edited:
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holeydonut

Supporting Member
Supporting Member
Jun 27, 2020
2,186
1,591
East Bay NorCal
Haha I don't know if automotive grade scrutiny and quality assurance standards for Tesla is something to boast about ... some homeowners are about to get some crooked-azzz solar panels.

1626276866527.png
 

Southpasfan

Member
Jun 2, 2019
463
605
Pasadena
A while back I looked at the Q-Cell site and it simply seems like the panel itself if whatever percent larger.

That of course, is no different than the current 340 panel, especially because the pricing is not per panel but per watt.
 

dhanson865

Active Member
Feb 16, 2013
4,734
8,659
Knoxville, Tennessee
A while back I looked at the Q-Cell site and it simply seems like the panel itself if whatever percent larger.

That of course, is no different than the current 340 panel, especially because the pricing is not per panel but per watt.

might change the math for some people that couldn't fit an extra row on the south facing roof but maybe could fit a larger panel there.

might be a wash for the roofs that can fit multiple rows without issue.
 

Southpasfan

Member
Jun 2, 2019
463
605
Pasadena
might change the math for some people that couldn't fit an extra row on the south facing roof but maybe could fit a larger panel there.

might be a wash for the roofs that can fit multiple rows without issue.
Yup.

There are plenty of roof configurations where you could fit two 420s but not three 340s I would think, so the customer in that example could get 840 instead of 680, or 20% more from that part of their roof.

I see many posts on the Post Your Layout thread that are roof configuration limited not cost limited.
 

miimura

Well-Known Member
Aug 21, 2013
6,536
6,345
Los Altos, CA
Being able to mix different size panels would be another degree of freedom to maximize roof layouts. Of course, Tesla may not take this approach since they seem to like to be as cookie-cutter as possible.
 

gpez

Member
Apr 25, 2019
735
602
USA
About a year after introducing the current 340W panel, Tesla is introducing a new, larger, 420W panel. This one is branded as a Tesla panel, and is likely a custom, contract-manufactured panel (I would assume by Hanwha). I don't think Tesla is making their own panels.

Similar efficiency, just larger. Tesla launches new 420-watt solar panel, setting 'high' mark

Edit: Looks like an all-black Q.Cell L-G8.2 utility-scale panel with a slightly different outer frame for roof attachment.

View attachment 684441

Guh - what a crappy article just to make a LOL 420!!11 joke... As @Southpasfan noted it's the same panel as the 340s just bigger but the article buries that until halfway in.

Too bad too because offering different sized panels is a good thing, but this isn't any new magic panel tech or anything like the headline implies.
 
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