Dave, I'd be interested to know what issues you are having with the Discover batteries, since these are one of the LiFePO batteries we are considering seriously. Thanks, Howie
On Fri, Apr 5, 2019 at 3:44 PM Dave Angelini Offgrid Solar < offgridso...@sti.net> wrote: > Definitely agree with Kienan. The LG 48V project with Schneider failed > because LG could not handle the surge of an XW6848. LG Chem indicated to me > that the second half of 2019, they may announce something. I am working on > a project that is running 17 Discover AES and 3 XW+. It has some issues but > surge is not one of them. > > *Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/> > e-mail offgridso...@sti.net <offgridso...@sti.net> > text 209 813 0060* > > On Fri, 5 Apr 2019 18:04:55 +0000, Kienan Maxfield < > maxfieldso...@hotmail.com> wrote: > > Peter, > > Just a quick word of caution... If you are going to need backup power then > just double check that the surge capabilities of these inverters will work > for you. I know nothing about the Tesla, but I do know that most of the > newer battery inverters like the SMA Sunny Boy Storage, the Solar Edge > StorEdge, Outback's Skybox, and others, often have pathetic surge > capabilities. If Arbitrage and/or very small backup is your game then it's > not a big deal, but for my projects, this instantly counts them out. > Fronius was going to bring in a battery inverter (I don't know if or when) > but their product was going to have the same problem according to the techs > at Fronius that I know. > > Now if you're comparing these against the SB "Secure Power Supply" then > yeah, they can handle a lot of loads, but once you pay out all that money > for the batteries, then most of my customers are going to expect a more > substantial backup capacity. > > Thanks, > Kienan > > *Maxfield Solar* > *maxfieldso...@hotmail.com* <maxfieldso...@hotmail.com> > *(801) 631-5584 (Cell)* > > ------------------------------ > *From:* RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> on behalf > of Marco Mangelsdorf <ma...@pvthawaii.com> > *Sent:* Wednesday, April 3, 2019 10:55 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Does SMA have a SGIP-compliant (i.e. Smart > Storage) Product? > > Welcome back, Peter, to the Brave New World of grid-tie plus storage plus > SGIP plus bulk services plus plus plus. > > From my perspective, Tesla and LGC/SolarEdge are the furthest along in > this new journey beyond the dinosaur designs and strategies of the 1980s to > the early 2000s. At least if you look at the installation data from the > two cutting/bleeding edge states of Hawaii and California. > > SMA is somewhat late to this particular dance. That said, I find your > comments below kinda shocking. > > Blair Reynolds....are you out there? I've found him to be one of the most > knowledgeable SMA guys on the Sunny Storage front. If he doesn't respond, > let me know and I'll get you two together. > > Aloha, > marco > > On Wednesday, April 3, 2019, Peter Parrish <peter.parr...@calsolareng.com> > wrote: > > When I was a C-46 contractor in California from 2000 to 2012, I used to do > about 1/3 of my business as grid-tied battery backup and off-grid. I came > to focus on the Outback solutions in general, and later the Radian 8048 and > 240 A-hr AGM batteries. > > > > That was obviously a while ago. I became an educator and a consultant > helping California K-12 school districts become more energy efficient and > energy conserving. > > > > Nonetheless, I had a left-over client that was working through a > full-house "gut and rebuild". I recommended the most efficient lighting, > A/C, fridges. I helped him create dedicated branch circuits should he want > to back-up critical loads. I designed a SMA/LG 12.4 kW roof mount system > together with a 400 A 240/120 V split phase service panel. We were ready > for battery back up and also told him that there was a new program – > California SGIP. One-half of his service panel remains untouched. > > > > So with the SGIP Program, I put in a reservation to Southern California > Edison for a 8 kW / 16 kWh (Sonnen ECO-16 -- based) "smart storage" > system. The guys at Sonnen made a number of faux pas, so we went looking > elsewhere. > > > > I really like the SMA SB inverters. The three MPP inputs, the secure power > supply. So I thought since SMA claimed to have a "Sunny Boy Storage" system > that was SGIP-compliant, and had taken this new product on a eight-city > road show, we were "in like Flynn". > > > > Fast forward: I have spoken to my sales rep at Wesco, and FIVE – count > them FIVE -- people at SMA Sales and presales Tech Support , and not one > person claimes to have knowledge of the Sunny Boy Storage system. Have I > gone blind, dum and crazy? > > > > I understand that StorEdge product has traction and I am ready to jump > ship. What am I missing? > > > > Peter Parrish > > > > Peter T. Parrish > Calofornia Solar Engineering > 1107 Fair Oaks Ave. Ste. 351 > <https://maps.google.com/?q=1107+Fair+Oaks+Ave.+Ste.+351+South+Pasadena,+CA+91030&entry=gmail&source=g> > South Pasadena, CA 91030 > <https://maps.google.com/?q=1107+Fair+Oaks+Ave.+Ste.+351+South+Pasadena,+CA+91030&entry=gmail&source=g> > (323) 839-6108 > peter.parr...@calsolareng.com > > > > -- > > > > > > _______________________________________________ > 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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