[RE-wrenches] Low Voc for effective string?

[Bill Battagin]

I've been on hold with OB for about 40 minutes now and I need to know if 
2 SW PVs with a Voc of 39.9 and a Vmpp of 31.3 will do an effective job 
of charging a 48 volt LA battery especially with temps of 95 degrees.  
Anybody have experience with this or similar,  Appreciate the feedback.  
It just seems I'm a little low in Vmpp if I want to equalize when its 
hot.  Will it be even more questionable in 10 years as PVs age?

OB did just pickup only to tell me I need Java for the string sizing 
tool and he can't help me with this configuration.

Bill


On 9/11/2018 1:28 PM, Sindelar Solar wrote:
>
> If it's a 48V system, you might also look at Blue Ion LiFePo batteries 
> and eliminate the lead for good. I just installed my first set and 
> consider it a game changer.
>
> Allan
>
> On 9/11/2018 1:44 PM, Steve Romo wrote:
>> Good afternoon everyone,
>>
>> What has been your experience with the Outback OPzV battery? I have a 
>> client who destroyed a set of Solar One HUP batteries (2490 A/HR) by 
>> forgetting to water them for a year. We are looking to take watering 
>> out of the equation.
>> He does need this much storage (maybe more) My next thought was 3 
>> strings of GS SLR 1000  batteries (cycle life is a lot better but at 
>> twice the cost)
>> I appreciate any and all input.
>> -- 
>> Steve Romo
>> Mountain Power Solutions LLC
>> NABCEP certified PV Installer #110112-124
>> Kohler Certified Generator Technician
>> Generac Certified Generator Technician
>>
>> 970-433-6316 <tel:970-433-6316>
>> _______________________________________________
>> List sponsored by Redwood Alliance
> -- 
>
> *Allan Sindelar*
> allan at sindelarsolar.com <mailto:allan at sindelarsolar.com>
> NABCEP Certified PV Installation Professional
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> www.members.re-wrenches.org
>



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20180911/4a3efc4b/attachment.htm>