Hi Kirpal, With regards to your question about what size solar system will be feeding this large battery bank, we are still trying to optimize the design a bit. However, the the preliminary design was at about a 25 kW. During peak production, we expect about 500A(!) to be heading into the battery bank. Should be a fun project to see how it develops.
Thanks On Tue, Mar 11, 2014 at 1:37 PM, Kirpal Khalsa <[email protected]> wrote: > Ray.....i do not have the link to the warranty....our salesman presented > us with a variety of options ranging from 5 years upto 20 years.....just > like other manufacturers they had prorating levels with each option.....If > asked i am sure they will provide you with any information you want in > regards to the warranty.... > > Allan.....yes in fact we were also surprised with the low voltage settings > that they specify....In one system we installed a 3200Ah battery bank and > trying to coordinate the settings they specify with the programmable > settings offered in the Sunny Islands was an exercise in it self....They > have different terminology than is common in most RE system charging > parameters....making sure we were all talking about the same parameters was > the hardest factor....If i remember correctly the absorb and equalize > settings were almost the same per the manufacturer. > I could not tell you much about the lead -selenium technology or the > tubular positive plates with any expertise..... > The large system we installed these batteries on was specified to use the > longest possible life span batteries coupled with high cycling > capability....At the time they were the only company we could find willing > to put the 20 year warranty in writing apart from some sealed Unigy > batteries which were far more expensive..This was a AC coupled grid > interactive system and so the batteries are in standby 95%+ of the > time....We have a contract to do routine maintenance on the system and have > only had to add water once per year....even then it was not necessary but > to set it on course till the next time we are scheduled to inspect, 1 year > later. > The customer has had very few power outages but did have one for 4 days > last winter and the battery bank worked flawlessly....We really like the > clear cases for quick electrolyte level monitoring. The cells have flip > tops for easy access. > My overall take on these batteries is that they are primarily designed for > standby systems. We haven't used them in an off grid configuration. They > have been in for 3 years with no sign of aging...I think they are a company > that is only beginning to realize the possibility of the RE market and > havent focused much effort in that direction in the past.... > SBS was easy to work with, and provided good support for the seismic > racking and spill containment system....with more documentation than i am > used to receiving from our main suppliers... > Hope that helps... > Cheers, > > > > Sunny Regards, > Kirpal Khalsa > NABCEP Certified PV Installation Professional > Renewable Energy Systems > www.oregonsolarworks.com > 541-218-0201 m > 541-299-0402 o > > > On Tue, Mar 11, 2014 at 8:42 AM, Ray Walters <[email protected]> wrote: > >> Hi Kirpal; >> >> I see that the SBS batteries are rated to 1200 cycles to 80% DOD, but I >> can't find the warranty on their website. Do you have a link to that? >> >> R.Ray Walters >> CTO, Solarray, Inc >> Nabcep Certified PV Installer, >> Licensed Master Electrician >> Solar Design Engineer303 505-8760 >> >> On 3/11/2014 9:26 AM, Kirpal Khalsa wrote: >> >> Mac...good morning....that is a big battery bank!....We have used the SBS >> Batteries for large battery banks....They offer multiple warranty options >> including upto 20 years. They are tubular plates with clear outer cases >> which make the electrolyte levels really easy to monitor and fill....They >> come with insulated cell interconnects with testing ports, they offer >> seismic racking custom designed to fit your battery bank, as well as spill >> containment trays and acid neutralizer kits for the spill containment >> trays. We have been very happy with their performance. They offer a 2V >> FLA cell at 4000Ah @ the 20 hr rate. They are a high quality product made >> in the USA and worth looking at. >> Here is the link to their website. >> >> http://www.sbsbattery.com/products-services/by-product/batteries/batteries-flooded-wet-cell-batteries/flooded-wet-cell-batteries-stt-series-flooded-2v-cell.html >> Additionally they offer hydrogen gas alarms for battery rooms. >> >> I am curious - is this a solar integrated system, if so, what size >> array would be charging the batteries? >> Good luck! >> >> Sunny Regards, >> Kirpal Khalsa >> NABCEP Certified PV Installation Professional >> Renewable Energy Systems >> www.oregonsolarworks.com >> 541-218-0201 m >> 541-299-0402 o >> >> >> On Tue, Mar 11, 2014 at 8:05 AM, Ray Walters <[email protected]> wrote: >> >>> Consider the HUP Solar One battery, the 125-33. It has 2490 AH at the >>> 20 hr rate. The warranty is for 2100 cycles to 80% DOD. Also most of the >>> jumpers are included (bus bars within each 12 v group) >>> We've had nothing but happy customers since we started using the HUPs. >>> >>> R.Ray Walters >>> CTO, Solarray, Inc >>> Nabcep Certified PV Installer, >>> Licensed Master Electrician >>> Solar Design Engineer >>> 303 505-8760 >>> >>> >>> On 3/11/2014 8:01 AM, [email protected] wrote: >>> >>>> Mac, for this type of large system we typically use Surrette/Rolls >>>> 2YS31.They are 2430 ah. When we get into battery banks this large we >>>> typically only run two cells deep (front to back) for ease of >>>> maintenance. >>>> I hope your customer has some free time on their hands for maintenance. >>>> Remember, Surrette deep cycle batteries demand a higher than most charge >>>> rate or you will find the life of the cell will be significantly shorter >>>> than with proper charging. I'm sure your local battery distributor or >>>> Jamie Surrette can send you the tech stuff on these batteries. Any way >>>> it >>>> goes, this is a very big battery bank. Good luck! >>>> >>>> Daryl DeJoy >>>> NABCEP Certified PV installer >>>> Penobscot Solar Design >>>> >>>> >>>> >>>> Good point Jason. To clarify this is a 48V system. >>>>> >>>>> Thanks >>>>> >>>>> >>>>> On Tue, Mar 11, 2014 at 7:44 AM, Jason Szumlanski >>>>> <[email protected]>wrote: >>>>> >>>>> Not that I have an answer for you, but I'm curious, too. You need to >>>>>> specify voltage to get a good answer. >>>>>> >>>>>> Jason Szumlanski >>>>>> >>>>>> Fafco Solar >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Tue, Mar 11, 2014 at 9:24 AM, Mac Lewis <[email protected]> >>>>>> wrote: >>>>>> >>>>>> Hi wrenches, >>>>>>> >>>>>>> I am consulting on a job that requires an 8000 Ahr battery bank. >>>>>>> This >>>>>>> is >>>>>>> quite a bit beyond my normal battery bank realm. What would you >>>>>>> recommend >>>>>>> for this? >>>>>>> >>>>>>> Thanks in advance >>>>>>> >>>>>>> -- >>>>>>> >>>>>>> >>>>>>> >>>>>>> Mac Lewis >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>> List sponsored by Home Power magazine >>>>>> >>>>>> List Address: [email protected] >>>>>> >>>>>> Change email address & settings: >>>>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>>>> >>>>>> List-Archive: >>>>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>>>> >>>>>> List rules & etiquette: >>>>>> www.re-wrenches.org/etiquette.htm >>>>>> >>>>>> Check out participant bios: >>>>>> www.members.re-wrenches.org >>>>>> >>>>>> >>>>>> >>>>>> >>>>> -- >>>>> >>>>> >>>>> >>>>> Mac Lewis >>>>> >>>>> *"Yo solo sé que no sé nada." -Sócrates* >>>>> _______________________________________________ >>>>> List sponsored by Home Power magazine >>>>> >>>>> List Address: [email protected] >>>>> >>>>> Change email address & settings: >>>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>>> >>>>> List-Archive: >>>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>>> >>>>> List rules & etiquette: >>>>> www.re-wrenches.org/etiquette.htm >>>>> >>>>> Check out participant bios: >>>>> www.members.re-wrenches.org >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> List sponsored by Home Power magazine >>>> >>>> List Address: [email protected] >>>> >>>> Change email address & settings: >>>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>>> >>>> List-Archive: >>>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>>> >>>> List rules & etiquette: >>>> www.re-wrenches.org/etiquette.htm >>>> >>>> Check out participant bios: >>>> www.members.re-wrenches.org >>>> >>>> >>>> >>> _______________________________________________ >>> List sponsored by Home Power magazine >>> >>> List Address: [email protected] >>> >>> Change email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out participant bios: >>> www.members.re-wrenches.org >>> >>> >> >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: [email protected] >> >> Change email address & >> settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette:www.re-wrenches.org/etiquette.htm >> >> Check out participant bios:www.members.re-wrenches.org >> >> >> >> _______________________________________________ >> List sponsored by Home Power magazine >> >> List Address: [email protected] >> >> Change email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out participant bios: >> www.members.re-wrenches.org >> >> >> > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > -- Mac Lewis *"Yo solo sé que no sé nada." -Sócrates*
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