[RE-wrenches] SMA US 40 & AC coupling

Drake drake.chamberlin at redwoodalliance.org
Fri Mar 10 06:12:52 PST 2017 

I talked to SMA tech support. They said the 5.0 
and 6.0 models were compatible with AC coupling. 
AEE supplied the SI 485PB NR Piggyback card with RJ 45 cable.

At 06:45 AM 3/10/2017, you wrote:
>Well my supplier was not aware of any additional 
>part# for this purpose. Nor was their anything 
>in their manual stating compatibility.
>Part# PLEASE, It does seem short sighted of the 
>company who pioneered AC Coupling to no longer 
>provide us w/ equipment for said ACC.
>>On Mar 9, 2017, at 8:47 AM, Drake 
>><<mailto:drake.chamberlin at redwoodalliance.org>drake.chamberlin at redwoodalliance.org> 
>>wrote:
>>
>>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
>>><28a7dc11.jpg>
>>>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 
>>> 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 
>>>Â 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 &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  
>>>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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>>><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 
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>><blocked::mailto:Tump at swnl.net%22%20%5Co%20%22blocked::mailto:Tump at swnl.net>Tump at swnl.net 
>>www.SWNL.net
>>                 Solarwinds Northernlights
>>        Serving Mid Coast Maine & Northern California
>>                          207-832-7574   Cl. 
>> 610-517-8401
>>                               Blair "TUMP" May
>>
>>                ********  MAINE'S CHARTER ********
>>                       NABCEP    "Certified PV Installer"
>>
>>               ********  MAINE'S CHARTER ********
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