1000w solar panel? Is it even true

FNfal said:
Nothing stopping them from making 1000W solar panels BUT they would probably be 3M by 2M .
Click to expand...
800w is 2.2 x 1.7 so not quite :)

Would be closer to 2 x 2.3M for an 1KW panel

www.pv-magazine.com

JA Solar launches 800 W solar panel - pv magazine Global

The new product, currently the most powerful panel on the market, was showcased at the SNEC PV Power Expo in Shanghai. Also presented at the fair was a 780 W product from Tongwei and a 660 W module from Trina.
www.pv-magazine.com www.pv-magazine.com
 
If you're interested in trends - the industry is moving towards 210mm wafers, so average panel will soon be in the mid 5-600w size, or higher if using Heterojunction technology (HJT) or the slightly less efficient TOPCon, as those are even more efficient at 24% (HJT) or higher, so can reach 700w +-


PV Magazine has some fluff about that -

www.pv-magazine-india.com

The long read: SNEC's solar trends in 2021 - pv magazine India

All eyes are drawn to China every year for SNEC, the world’s biggest solar PV expo, as it invariably features a large number of new products from the key Chinese manufacturers. Vincent Shaw was on the scene in Shanghai this year and took the opportunity to take the industry’s pulse.
www.pv-magazine-india.com www.pv-magazine-india.com

And some info about HJT
www.solarpowerworldonline.com

What are heterojunction technology (HJT) solar panels?

Heterojunction technology (HJT) is a not-so-new solar panel production method that has really picked up steam in the last decade.
www.solarpowerworldonline.com www.solarpowerworldonline.com

TOPCon ( Tunnel Oxide Passivated Contacts / Passivated Contacts)
pv-magazine-usa.com

TOPCon n-type solar cell technology could be a rival to mono PERC - pv magazine USA

TOPCon cell technology has become one of the two leading next-generation options after mono PERC. But for the n-type architecture to truly become a rival to PERC, high-quality and cost-effective production technologies must become settled.
pv-magazine-usa.com pv-magazine-usa.com



Example panel - https://www.pv-magazine.com/2021/03/11/trina-launches-670-w-solar-panel/

2.38 x 1.3m / 34kg / 45.7v @ 18.5A
 
Cosmik Debris said:
Maximum system voltage - DC 1000 V o_O

That would require an arc quenching breaker the size of a bar fridge just to switch it on and off...
Click to expand...
Not really:
898629B4-388E-4540-BE69-0B4B688CD302.jpeg.87ffba667981b986daddbef38194048e.jpeg


Or this:

Error 404 - MCE Electric

mce.co.za mce.co.za
 
Cosmik Debris said:
Maximum system voltage - DC 1000 V o_O

That would require an arc quenching breaker the size of a bar fridge just to switch it on and off...
Click to expand...
Not really. You get 1000V fuses that are smaller than your finger. The 1000V breakers would also fit in your normal DB board. I think they are 4P breakers if I remember correctly
 
Cosmik Debris said:
Maximum system voltage - DC 1000 V o_O

That would require an arc quenching breaker the size of a bar fridge just to switch it on and off...
Click to expand...
Nope, volts doesnt make the big difference, its Amps that needs big breakers
That is why I wire all my solar panels in series, it keeps the amps the same as each panel and thus I can continue using standard thin cable and also not worry about DC loss as you experience heavy DC loss when there is huge amps and incorrect thickness wires
 
Pineapple Smurf said:
Nope, volts doesnt make the big difference, its Amps that needs big breakers
That is why I wire all my solar panels in series, it keeps the amps the same as each panel and thus I can continue using standard thin cable and also not worry about DC loss as you experience heavy DC loss when there is huge amps and incorrect thickness wires
Click to expand...
That moment when I wish I paid more attention in Grade 8 science.
 
Pineapple Smurf said:
Nope, volts doesnt make the big difference, its Amps that needs big breakers
That is why I wire all my solar panels in series, it keeps the amps the same as each panel and thus I can continue using standard thin cable and also not worry about DC loss as you experience heavy DC loss when there is huge amps and incorrect thickness wires
Click to expand...
But volts do matter in this instance - since it will determine the arc gap required to effectively break the circuit. If you look at the post above with the breaker - you'll see that they wire them in series in order to meet the required arc gap.
 
Vorastra said:
That moment when I wish I paid more attention in Grade 8 science.
Click to expand...
Grade 8 science? Did they teach you those things at grade 8? I have no recollection of what science we learnt at grade 8 but I started encountering current and voltage much later.
 
P924 said:
But volts do matter in this instance - since it will determine the arc gap required to effectively break the circuit. If you look at the post above with the breaker - you'll see that they wire them in series in order to meet the required arc gap.
Click to expand...
I think the point was that it does not make a big difference in terms of the size of the breaker, it's still a normal breaker compared to fridge sized breaker Cosmik was talking about.
 
TheChamp said:
I think the point was that it does not make a big difference in terms of the size of the breaker, it's still a normal breaker compared to fridge sized breaker Cosmik was talking about.
Click to expand...
As you can see, it does make a difference, the breakers get bigger as the voltage goes up, as you need to put more of them in series. Yes, the fridge size is inaccurate/an exaggeration but the size is indeed dependent on the voltage.
 
P924 said:
As you can see, it does make a difference, the breakers get bigger as the voltage goes up, as you need to put more of them in series. Yes, the fridge size is inaccurate/an exaggeration but the size is indeed dependent on the voltage.
Click to expand...
That's why he said it does not make a big difference.
 
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