[RE-wrenches] Aquion Batteries

Drake drake.chamberlin at redwoodalliance.org
Thu Mar 9 05:47:02 PST 2017 

I was told by SMA tech support that the new SMA 
US 40s were compatible with AC coupling. I was 
provided with interface cards for the purpose.

At 04:21 PM 3/8/2017, William Miller wrote:

What are the limitations of the new SMA inverters?

Drake


>Wrenches:
>Â
>As a caution:Â  The TL22 inverters have been 
>discontinued.  The TL40s have some limitations 
>as compared to the TL22s, in my opinion.  You 
>may still find TL22s on the shelf.
>Â
>William
>Â
>Â
>Gradient Cap_mini
>
>Lic 773985
><http://www.millersolar.com/>millersolar.com
>805-438-5600
>Â
>From: RE-wrenches 
>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Tump
>Sent: Wednesday, March 08, 2017 1:13 PM
>To: <mailto:findsolar at herzfeld.org>findsolar at herzfeld.org; RE-wrenches
>Subject: Re: [RE-wrenches] Aquion Batteries
>Â
>I have dual Sunny Islands & dual SB 4000TL22US Â 
>w/ 20 stack on one and another site w/ the 
>Aspen 48MÂ 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 
>Â 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 &Â 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 
>Â 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.Â
>I have spoken to the manufacture re/ lack of 
>capacity and was told that must be my loads
. NOT.Â
> >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.  TUMPÂ
>Â Â
>On Mar 8, 2017, at 12:55 PM, Martin Herzfeld 
><<mailto:findsolar at herzfeld.org>findsolar at herzfeld.org> wrote:
>Â
>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 Solaar 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
>Â  Â Â
>Â
>On Jul 20, 2016 2:00 PM, "Jerry Shafer" 
><<mailto:jerrysgarage01 at gmail.com>jerrysgarage01 at gmail.com> 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.
>Â
>On Jul 20, 2016 10:52 AM, "Drake" 
><<mailto:drake.chamberlin at redwoodalliance.org>drake.chamberlin at redwoodalliance.org> 
>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
><tel:740-448-7328>740-448-7328
><http://athens-electric.com/>http://athens-electric.com/
>Â
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>Â
><blocked::mailto:Tump at swnl.net%22%20%5Co%20%22blocked::mailto:Tump at swnl.net>Tump at swnl.net 
>Â  Â  Â  Â  Â  Â  Â Â 
><blocked::http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.swnl.net/>www.SWNL.net
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