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:  As a caution: 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.  William   Gradient Cap_mini Lic 773985 <http://www.millersolar.com/>millersolar.com 805-438-5600  From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Tump Sent: Wednesday, March 08, 2017 1:13 PM To: <mailto:findso...@herzfeld.org>findso...@herzfeld.org; RE-wrenches Subject: Re: [RE-wrenches] Aquion Batteries  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 â30â%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 ~ 42X28X42â @563 AH of capacity, UnigyII 2000 Ah ~ 42x40x6â 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 â AC couplingâ 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 <<mailto:findso...@herzfeld.org>findso...@herzfeld.org> 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 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     On Jul 20, 2016 2:00 PM, "Jerry Shafer" <<mailto:jerrysgarag...@gmail.com>jerrysgarag...@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.  On Jul 20, 2016 10:52 AM, "Drake" <<mailto:drake.chamber...@redwoodalliance.org>drake.chamber...@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/  _______________________________________________ List sponsored by Redwood Alliance List Address: <mailto:RE-wrenches@lists.re-wrenches.org>RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>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>http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: <http://www.re-wrenches.org/etiquette.htm>www.re-wrenches.org/etiquette.htm Check out or update participant bios: <http://www.members.re-wrenches.org/>www.members.re-wrenches.org _______________________________________________ List sponsored by Redwood Alliance List Address: <mailto:RE-wrenches@lists.re-wrenches.org>RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>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>http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: <http://www.re-wrenches.org/etiquette.htm>www.re-wrenches.org/etiquette.htm Check out or update participant bios: <http://www.members.re-wrenches.org/>www.members.re-wrenches.org  _______________________________________________ List sponsored by Redwood Alliance List Address: <mailto:RE-wrenches@lists.re-wrenches.org>RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org>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>http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: <http://www.re-wrenches.org/etiquette.htm>www.re-wrenches.org/etiquette.htm Check out or update participant bios: <http://www.members.re-wrenches.org>www.members.re-wrenches.org  <blocked::mailto:t...@swnl.net%22%20%5Co%20%22blocked::mailto:t...@swnl.net>t...@swnl.net         <blocked::http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.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 ********                  Trace Xantrex "Certified" Dealer / Installer"    Content-Type: image/jpeg; name="image003.jpg" Content-Disposition: inline; filename="image003.jpg" Content-ID: <image003.jpg@01D2980E.EB045720> X-Attachment-Id: d32b0196b0d3a567_0.1 _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@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
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