[RE-wrenches] SolarWorld Poly

[Nik Ponzio]

Bill,

I was afraid of that!

One thing I didn't mention earlier is that the old-style frame widths of the
Mono have some significant variation from end to end. This makes it
difficult to maintain a nice even gap between rows. The newer Poly frames
(top-down only) seem to have a much tighter tolerance on the square
dimensions. I still like the Mono style better, but it sounds like we will
have to adapt...

We did also have two freight-damaged shipments. This is mostly an issue
caused by a careless forklift operator but the factory & distributors are
also cutting corners with the packaging.

If you see receive a pallet that looks like this,
https://picasaweb.google.com/lh/photo/_23bAMmghhHRqFjEzsOtkyibeFbxo7C9BtDVyGYSu5g?feat=directlink
I suggest you refuse delivery and let the shipper deal with the freight
claim. What a pain that is!

Otherwise, no failures yet. All systems are go!

-Nik


On Wed, Jun 22, 2011 at 6:29 PM, Bill Hoffer <sunengser at gmail.com> wrote:

> Nik
>
> I just bought a new mono solarworld 250 and it also has a new stle frame
> with no feet, I believe they have switched to the new frame for all their
> models now.  Limits options for mounting to only using top clips, not good
> in my opinion.   I believe they are working on their own clip system, last I
> saw it looked a bit "German" and a liitle too fancy for my tastes.  I have
> not compared glass surfaces between the two models, but I would suspect that
> they are switchign to the " cheaper reflective glass on all their new
> models.  Cutting cost in one place and adding in another!  Over all thouh a
> good solid module.
>
> Bill
>
> On Wed, Jun 22, 2011 at 1:45 PM, Nik Ponzio <nponzio at buildingenergyus.com>wrote:
>
>> Esteemed Wrenches,
>>
>> I have been using a lot of SolarWorld mono-crystalline modules this year
>> and I am quite happy with the product. This week we installed our first
>> SolarWorld poly-crystalline array. I was surprised at how different the two
>> modules are. The glass on the poly module is highly reflective. I went so
>> far as to call my distributor to make sure I hadn't gotten a bad batch that
>> missed the anti-reflective coating step. That's what it seems like!
>>
>> The other significant difference is the frame style used. The Poly are
>> only compatible with top-down clamping. I was aware of this from the
>> datasheets but I had no idea that the glass would be so different.
>>
>> Take a look at some side-by-side photos here:
>>
>> https://picasaweb.google.com/109634809794570027207/SolarWorldMonoVsPoly?authkey=Gv1sRgCMuLy4v_ivTUAg&feat=directlink
>>
>> Just a heads-up to anyone considering getting into SolarWorld.
>>
>> Happy Summer!
>> Nik
>>
>> --
>> Nicholas Ponzio
>> Building Energy
>> 1570 South Brownell Road
>> Williston, VT 05495
>> http://www.BuildingEnergyVT.com
>>
>>
>>
>>
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>
>
> --
> Bill Hoffer PE
> NABCEP Certified Solar PV Installer™
> Sunergy Engineering Services PLLC
> 2504 Columbia Ave NW
> East Wenatchee WA 98802-3941
> SunEngSer at gmail.com (509)470-7762
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