I have dual Sunny Islands & dual SB 4000TL22US  w/ 20 stack on one and another 
site w/ the Aspen 48M w/ Schneider. I will say this; cost per amp hour of 
storage  sucks w/ the Aquion batteries. Both my client and I feel, that the 
batteries, despite there size have very little capacity. The “30”%DOD, that I 
have the SIs set to start the Gen set, charges the stacks OK but one gets 
better performance from  charging w/slower solar source. The Aspen48M is ~ 
42X28X42” @563 AH of capacity, UnigyII 2000 Ah ~ 42x40x6’ tall. Batteries are 
defiantly temperature sensitive, operating should be ~ 60*. The set up w/ the 
SMA product, adds additional cost due to the required  BM200 AND  the Sunny 
Island Interface Device, and the SM100 unless you are buying theAspen48M which 
comes pre wired. (Aspen 48M which comes thru w/ the sensing module installed).  
It is quite helpful, if this is an off grid install due to the fact that the 
BM200 needs and when things go south Aquion can toggle the unit off site and 
help w/ configuration & upgrades, to be connected to the internet. This install 
also needs the correct firmware to be installed on the SI which when  was 
delivered, the firmware  would only load into the master then shut down the 
system. Had to reconfigure as 2 separate units, load the firm ware and then 
reconfigure for 2 phase. 
I have spoken to the manufacture re/ lack of capacity and was told that must be 
my loads…. NOT. 
I would suggest that despite their hype these are quite expensive and require 
quite a bit more of labor IF you are wiring the un sensed stacks. And there is 
definitely a learning curve if you are using the SI.
My own system and what I prefer to push IS the SMA SI w/ the SMA SBs (make sure 
that you get the TL22s as the newest SB is not compatible for “ AC coupling” in 
this configuration) w/ the Unigy II/MK line. (same battery) These have buss 
bars, stack vertically , the interlocking stacks is perfect for earthquake 
locations. AND are totally recyclable.
Pictures  of the SMA install & insights of battery installation available, 
contact me off line.  TUMP 
  
> On Mar 8, 2017, at 12:55 PM, Martin Herzfeld <[email protected]> wrote:
> 
> Has anyone worked with them with a Sunny Island?  Space is not an issue for 
> this client.
> 
> Martin Herzfeld, IREC Certified Master Trainer ™ for PV Installation 
> Professional #IREC 10037
> California Solar Contractor License  #00833782  C46, D56, D31, C-7
> Solar, Trenching, Pole Installation & Maintenance, Instrumentation
> 
> UL Certified PV Installer #17, OSHA 30
> OSHA-Authorized Construction Trainer #C0068034
> CompTIA Certified Technical Classroom Trainer (CTT+) #T3NSZCNBBKB4QTQG
> 
> Registered NABCEP Continuing Education (CE) Provider
>     
> 
> On Jul 20, 2016 2:00 PM, "Jerry Shafer" <[email protected] 
> <mailto:[email protected]>> wrote:
> We had a customer request them but once we found out how many it would take, 
> he decided on the deka unigee instead. l dont like running my OB's at such a 
> low voltage as they seem to get hotter due to the higher current. Some of our 
> other product lines don't even reccomend aquions due to that low voltage, 
> suggest asking your inverter manufacture too.
> 
> 
> On Jul 20, 2016 10:52 AM, "Drake" <[email protected] 
> <mailto:[email protected]>> wrote:
> Hello Wrenches,
> 
> I have a client who is going to take the plunge and buy a set of Aquion 
> Batteries. They look pretty good on paper, but I'm not sure how well an 
> inverter would function at the 40 V minimum. Does anyone have experience to 
> recommend them or warn against using them?
> 
> Thanks,
> 
> Drake
> 
> Drake Chamberlin
> Athens Electric LLC
> OH License 44810
> CO License 3773
> NABCEP Certified Solar PV 
> 740-448-7328 <tel:740-448-7328>
> http://athens-electric.com/ <http://athens-electric.com/> 
> 
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