Are Sharp NA-V135H1 Panels compatible with the Classic 250 and or 250KS model

[jaydekeyser]

Here is the link to the specsheet on Sharp's website:
http://files.sharpusa.com/Downloads/Solar/Products/sol_dow_NAV135H1.pdf hybrid 135 watt amorphous silicon panels

Looking at purchasing a compatible controller, June of 2011, at https://www.midwestrenew.org/ in Custer, WI

I looked at the Voc ratings and it looks like the panels will work with the Classic 250 and or (K).

This off grid system will be setup in Winters, TX(79567) which has a record low of 5 degrees F and average temp of 96 degrees F
Minimum 48volt off grid battery system
I believe this system will work well in this climate.

A yes or no will be fine or explain the "a little confusing" HyperVoc capabilities of the Classic controllers

Thanks, Jason

[boB]

WoW !   I don't believe I have ever seen this particular module with Voc of 249 Volts.

That Voc is certainly on the edge but should work fine, especially if you live in warm country. If you were using this in say, Montana
or Alaska where it is cold, then I would say not to consider this module.

HyperVoc is the Voltage above the operating range of the Classic you are using.  For instance, the 250 V Classic will be OK if the PV
input voltage does not exceed 250 Volts plus the battery voltage... (up to 48 Volt battery that is)

So if your battery system is 48 Volts, maximum input voltage should not exceed 298 Volts Voc.

The Classic will not turn on and operate until the PV input voltage drops to 250 Volts though.

boB

[jaydekeyser]

So I'm ok with these panels run only in a single parallel circuit to keep the voltage at the single panel Voc rating.

I was looking at the Morningstar MPPT 60 controller and Trina Solar panels until just 1 week ago when I was shopping around at higher voltage systems, much more cost effective.

Looks like MidniteSolar is gonna be my one stop shop for components to build my system.

Thanks Bob

See you or one of your sales reps at the Midwest Renewable Energy Fair June 17, 2011, Custer, WI

[mike90045]

I wonder what the warranty on the Sharp module is, data sheet says nothing, except for the odd storage humidity, implying there is a usage humidity spec too....

[boB]

See you or one of your sales reps at the Midwest Renewable Energy Fair June 17, 2011, Custer, WI

Yep.  See you there !

boB

[Vic]

Not to nit pick too much  ...     I must be very slow.  BUT,  cannot see any advantage to this panel at all, especailly for off grid.

Lots of parallel strings, each with a  breaker,  lots of parallel wire runs,  AND quite a lot of extra racking  

Even for grid tie,  not very many panels per string.  AND,  in poking around on the net, found someone selling them for $420/panel.

Seems very expensive,  and has almost uselessly high Voc.

EDIT:  Interesting that they even specify Portrait installation orientation.   Going back to my corner,   Vic

[jaydekeyser]

Found the modules $252 and some change a piece plus I don't have to order a minimum of 10 like other panels to get a good price. 
Here's the link:
http://www.millionsolarroofs.com/sharp115wthinfilmpvmodulemc4use-246mmclearframe6x180cellauc-si2afusena-v115h1-1-1.aspx

[jaydekeyser]

I can use these panels to run my grundfos sqflex pump if it doesn't work out on the charge controller, the grundfos sqflex can handle 30-300 vdc.  The main reason with higher voltage systems is the cost of copper in the future.  Higher voltage equals smaller cable.

[boB]

I wonder how many bypass diodes the module has ?   Although it might be in the spec sheet...  I didn't look.

boB

[jaydekeyser]

Each panel has 4 diodes, one per quadrant, it's in the specs near the bottom. Just click on my link at my initial post.