PV Inverters module strings [RE-wrenches]

[William Miller]

Joel:

Good design work.  This is the type of documentation that will make our
work easier for all of us.

William Miller



At 11:28 AM 3/30/01 -0800, you wrote:
>In general, is this list ok for rough sizing before getting down to the
details?
>Any changes, additions or corrections? Do any of the "low fill-factor"
companies
>or other PV manufacturers want to speak up?
>
>24 modules
>Siemens SR100
>Siemens SP75
>BP Solar BP-585UL
>Kyocera KC120-1
>Astropower APX-75
>Astropower AP-120
>
>12 modules
>BP Solar BP2150
>Photowatt PW1000-95
>
>? modules
>ASE Americas ASE-300
>
>Do not use
>Energy Photovoltaics EPV-40
>Solarex MST-43
>Solarex MSX-120
>United Solar SSR-128
>United Solar US-64
>
>Bill Brooks wrote:
>
>> Joel,
>>
>> It's a temperature issue so you cannot make a blanket statement for all
>> locations. You can say for all of California, except the Sierra's, 24
>> crystalline modules in series will generally work. If the open circuit
>> voltage of a crystalline module is low enough, we may be able to go to
>> 25-modules in series right along the coast of California, or any where it
>> never goes below freezing. Solarex MST-43, UniSolar-all products, and any
>> other low fill-factor module (CdTe) will likely not work with this inverter
>> because the difference between the Voc and Vmp is too great.
>>
>> The temperature correction factors come from Table 690-7 in the NEC. This
>> correction factor table only applies to crystalline modules, but we can
rule
>> out thin films for the time being because even though their correction
>> factors are less--even with no correction factors they will not work.
>>
>> Bill.
>>
>> -----Original Message-----
>> From: Joel Davidson [mailto:joeldavidson at earthlink.net]
>> Sent: Thursday, March 29, 2001 6:36 PM
>> To: RE-wrenches at topica.com
>> Subject: Re: PV Inverters module strings [RE-wrenches]
>>
>> Kent - We understand that you can not endorse specific solar modules, but
>> (like
>> mount manufacturers) you can make a list of modules that work with your
>> inverters and the number of modules in series. You can caveat the list
>> however
>> you feel necessary. Here's a start with the first 2 modules from this
>> on-going
>> discussion.
>> Siemens SR100 - 24 modules
>> BP Solar BP2150 - 12 modules
>> Siemens SP75 - ? modules
>> BP Solar BP-585UL - ? modules
>> ASE Americas ASE-300 - ? modules
>> Astropower AP-120 - ? modules
>> Astropower APX-75 - ? modules
>> Kyocera KC120-1 - ? modules
>> Photowatt PW1000-95 - ? modules
>> Energy Photovoltaics EPV-40 - ? modules
>> Solarex MST-43 - ? modules
>> Solarex MSX-120 - ? modules
>> United Solar SSR-128 - ? modules
>> United Solar US-64 - ? modules
>> Other modules ?


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