inverter has the same rugged
durability but higher grid-tie efficiency?
Joel Davidson
- Original Message -
From: Allan Sindelar
To: re-wrenches@lists.re-wrenches.org
Sent: Tuesday, November 22, 2011 8:07 AM
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
t: Tuesday, November 22, 2011 11:06 AM
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
Inverter, AC Coupled
> Nathan,
> I use an SW for backup in AC coupling. I use one of the auxiliary 1 amp
relays to activate a larger relay on the AC output of the grid tie inverter
:solardud...@yahoo.com]
>Sent: Tuesday, November 22, 2011 07:10 AM
>To: re-wrenches@lists.re-wrenches.org
>Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
>Inverter, AC Coupled
>
>Bill,
>I believe Allans post indirectly answered my question. While
Allan,
I was referring to the issue of the SW disconnecting from the grid in any of
its settings other than the sell mode. It was this limited function only, which
was not part of its UL listing issues, that I implied would make it suitable
for AC coupling. I did not know how it would react to t
-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System;Add New
Inverter, AC Coupled
Bill,
I believe Allans post indirectly answered my question. While he did not
specifically state the SW could be used in an AC coupled arrangement, I believe
it
Nathan,
I neither stated nor implied that the SW series could be AC-coupled,
because I don't know, friend. I have never had reason to try this.
The issue was discussed on this forum several years ago, and I have
found two key posts from David Katz of AEE about this topic
>From: "William Miller"
>To: "RE-wrenches"
>Sent: Sunday, November 20, 2011 1:12 PM
>Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
>Inverter, AC Coupled
>
>
>> Joel:
>>
>> I don't belive it was an
From: "William Miller"
To: "RE-wrenches"
Sent: Sunday, November 20, 2011 1:12 PM
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
Inverter, AC Coupled
> Joel:
>
> I don't belive it was an NEC thing, it was a UL/ETL consideration. This
Joel:
I don't belive it was an NEC thing, it was a UL/ETL consideration. This
relates to the NEC only in that it is required to use listed equipment.
William Miller
At 09:21 AM 11/20/2011, you wrote:
Where in the NEC is the requirement for the GTI interface?
_
On Sunday, November 20, 2011 9:32am, "Joel Davidson"
said:
Wrenches,
I answered Richard off-list, but other wrenches may find this information
about old SW4048s and batteries useful.
The SW4048 is a solid machine. We've been using one since 1998 and have sold
hundreds of them for
- Original Message -
From: Allan Sindelar
To: re-wrenches@lists.re-wrenches.org
Sent: Sunday, November 20, 2011 8:21 AM
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
Inverter, AC Coupled
Kirk,
I think there are a couple of subtleties that yo
Where in the NEC is the requirement for the GTI interface?
- Original Message -
From: "Kirk Herander"
To: "'RE-wrenches'"
Sent: Sunday, November 20, 2011 3:33 AM
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System;Add New
Inverter, AC
wrenches.org] On Behalf Of Richard L
Ratico
Sent: Friday, November 18, 2011 6:53 PM
To: re-wrenches@lists.re-wrenches.org
Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
Inverter, AC Coupled
Jay, Marv, Chris, Ray, Joel & Maverick,
Thanks tremendously for your input. Each
es@lists.re-wrenches.org
>Subject: Re: [RE-wrenches] Convert Grid Tie SW4048 to Backup System; Add New
>Inverter, AC Coupled
>
>Jay, Marv, Chris, Ray, Joel & Maverick,
>
>Thanks tremendously for your input. Each of you provided interesting
>suggestions, all of which
nvert Grid Tie SW4048 to Backup System; Add New
Inverter, AC Coupled
Jay, Marv, Chris, Ray, Joel & Maverick,
Thanks tremendously for your input. Each of you provided interesting
suggestions, all of which I find thought provoking and helpful. I greatly
appreciate your taking the time to s
Jay, Marv, Chris, Ray, Joel & Maverick,
Thanks tremendously for your input. Each of you provided interesting
suggestions, all of which I find thought provoking and helpful. I greatly
appreciate your taking the time to share your experience.
Dick
Solarwind Electric
--- You wrote:
We redid one i
Dick,
What are the customers goals? Battery backup works, but requires knowledge of
the customer's expectations (energy, power and flexibility). What is the budget
for the upgrades. Do they want more solar? They don't want battery maintenance,
will they want generator maintenance?
Ask these qu
We redid one in a very similar situation recently. In that case the
customer wanted super backup and so we put in Grid tie Outbacks and a
new battery bank, added modules, and kept the SWs as battery chargers
from the generator. He had the option with bypass switches to use the
SWs, if the Outba
HI Richard,
I'll chime in, although you won't like it.
Dump the system and start over with a new battery less system and a genny as
back up.
Told you, you wouldn't like it.
The SW parts are basically gone and it was a terrible grid tied inverter
anyway.
The modules are usable but why at $1.5
Hi Wrenches,
This is a repost. No replies the first time, so I'm trying one last time.
I may be "adopting" an eleven year old, Y2K, grid tie with battery back-up
system. It consists of 12 - Astro-Power 120 modules, installed in 2000, 12 -
Evergreen EC-110 modules installed in 2004, only one MX60
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