best low light performance
Hi, Amorphous panels are clearly the best for low light performance--but are relatively speaking huge. Does any one know if Poly or Mono are better in low light?
Forum Discussion
Here's the IV curve for a unisolar 124 watt.
Here's the IV curve for the 240W panel PT posted a link to (sorry, that's as big as the photo is)
Double the output of the Unisolar panel on the 200 w/m2 to compensate for a 124w panel versus a 240w and you get approximately the same output as the 240w panel at 200 w/m2. I guess the question is what is the average irradiance of your location? Below 200 w/m2, it *might* make sense to go with the Unisolar but I wouldn't design for the extreme shoulders of the local insolation levels.
The big difference is the 240 watt panel is ~18 sqf versus ~42 sqf for 248 watts of Unisolar panel.
Bruce
Here's the IV curve for the 240W panel PT posted a link to (sorry, that's as big as the photo is)
Double the output of the Unisolar panel on the 200 w/m2 to compensate for a 124w panel versus a 240w and you get approximately the same output as the 240w panel at 200 w/m2. I guess the question is what is the average irradiance of your location? Below 200 w/m2, it *might* make sense to go with the Unisolar but I wouldn't design for the extreme shoulders of the local insolation levels.
The big difference is the 240 watt panel is ~18 sqf versus ~42 sqf for 248 watts of Unisolar panel.
Bruce
