[RE-wrenches] Low voltage DC

[Dave Angelini Offgrid Solar]

I recently finished an install with the Iron Edison of Colorado. The
install was with their LFP 48v 400AH 20KWH battery. Here is a link below.
They are plug and play with Schneider, others also?, and have a 16 year
design life with better prices than Blue Ion. They also make the 30 year
life NIFE (edison) battery. Nice to be able to buy them from the
manufacturer in CO.


https://ironedison.com/48-volt-lithium-battery-for-solar 
Dave Angelini
Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridsolar at sti.net
[2]
text 209 813 0060

On Wed, 12 Sep 2018 15:26:53 -1000, "Marco
Mangelsdorf"  wrote:   

Aloha all, 

At the risk of whacking at a hornet's
nest...lower voltage DC is soooo 80s and 90s especially when it comes to
grid-tie applications with battery storage. 

The time of OutBack and
Schneider and all the others doing 48VDC is drawing to close. Enough
already. Thank you for your service. 

The sooner the industry fully
migrates to higher voltage DC (Tesla, LG Chem, BYD and others), the better.


marco 

FROM: RE-wrenches
[mailto:re-wrenches-bounces at lists.re-wrenches.org] ON BEHALF OF Peter
Giroux
SENT: Wednesday, September 12, 2018 3:03 PM
TO: RE-wrenches
SUBJECT:
Re: [RE-wrenches] Any thoughts on this approach to adding battery backup to
an existing grid tie system will be appreciated.   

Ken   

 We have had
terrific success with AC Coupling. Yes there are some differences from Dc
Coupled systems but if built properly, customer is willing to learn how to
use it and maintain it and you put the correct relays in to shut off the
string inverters if battery voltage gets to high, great.   

 If you have a
customer that refuses to exercise the system, not check the batteries if
they are fla's and overloads it when the power goes down then not so cool.
We have customers that power shave with it, have had backup power for days
until the power came back on as they monitored the loads and were judicious
about use. Ray is right in the sense the customer needs to learn how to use
the system or they can royally screw it up ( yes we have had two do this,
one learned the other not ).   

 The Radians have been great work horses
for this application, sadly as Ray mentioned Outback has moved away from it
as a primary solution.    

peter giroux   

ASAE   

Atlanta    

-----
Original Message -----    

FROM: Ken Schaal [3]    

TO: RE-wrenches [4] ;
Ken Schaal [5]    

SENT: Wednesday, September 12, 2018 8:11 PM  


SUBJECT: [RE-wrenches] Any thoughts on this approach to adding battery
backup to an existing grid tie system will be appreciated.  


https://www.youtube.com/watch?v=eyhkIfS5Z-Q [6] 

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Links:
------
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[2]
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[3] mailto:Ken at commonwealthsolar.com
[4]
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