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/ [1]
e-mail
offgridso...@sti.net [2]
text 209 813 0060
On Fri, 5 Apr 2019 18:04:55
+0000, Kienan Maxfield 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 [3] (801) 631-5584 (CELL)
-------------------------
FROM: RE-wrenches on behalf of Marco
Mangelsdorf
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 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 [5]
South
Pasadena, CA 91030 [6]
(323) 839-6108
peter.parr...@calsolareng.com [7]
--
Links:
------
[1]
http://members.sti.net/offgridsolar/
[2] mailto:offgridso...@sti.net
[3]
mailto:maxfieldso...@hotmail.com
[4]
mailto:peter.parr...@calsolareng.com
[5]
https://maps.google.com/?q=1107+Fair+Oaks+Ave.+Ste.+351+South+Pasadena,+CA+91030&entry=gmail&source=g
[6]
https://maps.google.com/?q=1107+Fair+Oaks+Ave.+Ste.+351+South+Pasadena,+CA+91030&entry=gmail&source=g
[7]
mailto:peter.parr...@calsolareng.com
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