[RE-wrenches] 72-cell modules

[Tump]

The Sanyo/panasonic are a bit smaller, just need to reduce rail width & drill holes but thats what I am doing.
On Jan 31, 2014, at 12:14 AM, Ray Walters wrote:

> No suggestions on modules, but possibly you could swap all the good modules onto 2 poles, and modify the 3rd rack to hold a set of all newer modules?
> I just sold a customer a bunch of Solar World 270s, to replace dead Astro Power modules on Wattsun racks.
> They went for a total square footage that was similar, and apparently didn't have much trouble modifying the rack.
> (I didn't do the work, originally or after)
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer, 
> Licensed Master Electrician
> Solar Design Engineer
> 303 505-8760
> On 1/30/2014 9:37 PM, Allan Sindelar wrote:
>> Wrenches,
>> About a year ago I asked for suggestions of 72-cell modules with 125 mm cells - the standard 155-195W modules of just a few years ago. Now we really need some.
>> 
>> We have a good customer for whom we put in an off grid system in 2006. 48V, 27 BP SX170 modules on three Wattsun trackers. Each tracker holds nne modules, wired as three 72V strings of three modules each.
>> 
>> Yes, the notorious SX170s. Four with burn spots were replaced in 2008, 6 more in 2010, and now ten more failed or are showing discoloration. BP's warranty contractor has agreed to replace the wattage equivalent of 23 of them at $2.00/W. They will either ship us replacement modules or send a check for purchase of replacements elsewhere. The problem is that their only offerings are 60-cell modules, which won't fit the trackers.
>> 
>> BP got out of the solar business before the standard configuration went to the larger 156 mm cells. I would have appreciated a serious corporate effort to procure warranty stock of modules that were most like the ones manufactured by BP, so that they would more readily replace their warranty failures. That apparently is not to be.
>> 
>> The SX170s are 31.1" (790mm) by 62.8" (1593 mm). I need to locate some 72-cell modules in this standard dimension range. We'd probably buy 27 of them, once we determine that the replacements can be fit to the racks.
>> 
>> Can anyone suggest a brand/model/supplier etc.? I have seen that Eopply shows 195W mono modules in the U.S. section of their website (thanks, Chris Daum) and I'll call them in the morning. Any other suggestions, please?
>> 
>> Thank you,
>> Allan
>> -- 
>> Allan Sindelar
>> Allan at positiveenergysolar.com
>> NABCEP Certified PV Installation Professional
>> NABCEP Certified Technical Sales Professional
>> New Mexico EE98J Journeyman Electrician
>> Founder, Positive Energy, Inc.
>> A Certified B CorporationTM
>> 3209 Richards Lane
>> Santa Fe, New Mexico 87507
>> 505 424-1112 office 780-2738 cell
>> www.positiveenergysolar.com
>>        
>> 
>> 
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