โMar-14-2015 10:00 AM
โMar-14-2015 06:32 PM
โMar-14-2015 05:20 PM
pianotuna wrote:
Hi,
It is the experience of folks on the forums that poly panels do some what better in shade or partial shade.
โMar-14-2015 04:43 PM
โMar-14-2015 04:19 PM
JiminDenver wrote:
My pair of 245w panels peaked out at 34a and that was at 10,000 ft and tracking the sun on a cold morning. I don't think he will see much clipping in a flat mount.
โMar-14-2015 04:17 PM
Jfet wrote:pianotuna wrote:
Hi tpi,
I believe solar panels work, or they don't. So long as there is an ability to exchange a non working panel I'd go on best price.
I would want as many diodes per panel as possible, and I'd probably favor Poly over Mono.
Why?
"Monocrystalline cells have a higher efficiency than polycrystalline cells due to the structure being made from one large crystal as opposed to many small ones. In addition to having an overall better efficiency, monocrystalline panels can perform up to 10% better than polycrystalline panels in high ambient temperatures."
โMar-14-2015 02:37 PM
โMar-14-2015 02:35 PM
tpi wrote:Edited my above post. The 22 amp current limit is INPUT. As 2oldman said, a bigger controller won't be tossing away charge current but I'd doubt there will be much to toss with two modules.
Westend, what you're saying is it is essentially OK to let the controller limit the output to the 22 amps? There was nothing in the documentation that sounded too dire if you were to exceed the recommended input.
โMar-14-2015 02:33 PM
tpi wrote:It'll probably just get hot.
There was nothing in the documentation that sounded too dire if you were to exceed the recommended input.
โMar-14-2015 02:31 PM
โMar-14-2015 02:24 PM
tpi wrote:I've heard good things about the Canadian Solar modules. They are built for the North so have good durability.
https://www.solarblvd.com/index.php?cPath=1_270
Is there any on this list notable for high quality?
I don't think he cares about spending a few more bucks if it reliably translates to quality.
โMar-14-2015 01:48 PM
โMar-14-2015 01:38 PM
tpi wrote:Take a look at the most expensive panel on that page. Read the specs. Now go back to the cheapest one. A lot of difference there.
Is there any on this list notable for high quality?
โMar-14-2015 01:26 PM
โMar-14-2015 01:15 PM
RoyB wrote:They work better with the WIRE from the roof to the controller. Thinner wire can carry lots of volts but not lots of amps.
It could be the 24VDC Solar Panel DC OUTPUTS work better with SOLAR CONTROLLER but to me the final DC output going to the RV Battery setup should remain at 12VDC so that you can utilize all of the working elements the RV TRAILERS has to use.
โMar-14-2015 01:14 PM