ma, CA 94953
Cell: 707-321-2937
Office: 707-789-9537
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From: Jeff Yago
To: RE-wrenches
Sent: Wed, October 21, 2009 7:53:11 PM
Subject: Re: [RE-wrenches] AC Coupled Re-visited
There have been some good advice related to battery bank sizin
and the
> battery bank is 48 volts 3500 AH
>
> --- On Tue, 10/20/09, Glenn Burt wrote:
>
> > From: Glenn Burt
> > Subject: Re: [RE-wrenches] AC Coupled Re-visited
> > To: "'RE-wrenches'"
> > Date: Tuesday, October 20, 2009, 2:13 PM
>
w
Phil sent you ;-)
I think there is a lot of opportunity to add power reliability and stability
to traditional grid tie systems -- what we need is a way to do it easily and
effectively. Here's to looking for a way!
Phil Undercuffler
Conergy
> -- Forwarded message --
>
Jeff Yago wrote:
There have been some good advice related to battery bank sizing and a better
description of how Sunny Islands work with SunnyBoys, but I am afraid we are
getting away from my original post that started this and that was:
Since a battery based inverter has a battery charging se
There have been some good advice related to battery bank sizing and a better
description of how Sunny Islands work with SunnyBoys, but I am afraid we are
getting away from my original post that started this and that was:
Since a battery based inverter has a battery charging section and all kinds
urt
> Subject: Re: [RE-wrenches] AC Coupled Re-visited
> To: "'RE-wrenches'"
> Date: Tuesday, October 20, 2009, 2:13 PM
>
>
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> SMA recently told me that the
> recomme
Phil,
Good advice. Assuming 48V and a large system, what would you use as a
diversion load and controller in this application? As I understand it, this
would be a DC diversion load, such as a wind gennie air heater, that would
be gradual, resistive, and noncritical for occasional use in this rare
t;
>
> -- Forwarded message --
> From: "Walt Ratterman"
> To: , "'RE-wrenches'" <
> re-wrenches@lists.re-wrenches.org>
> Date: Tue, 20 Oct 2009 12:37:04 -0700
> Subject: Re: [RE-wrenches] AC Coupled Re-visited
>
> Glenn
2:14 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] AC Coupled Re-visited
SMA recently told me that the recommended Ah of the battery bank is related
to the amount of PV and connected inverters.
They recommended a 500Ah bank with a 5kW PV SB, and a 600Ah bank with a 6kW
PV SB.
100Ah to 1
f Of Mark Frye
Sent: Tuesday, October 20, 2009 2:42 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] AC Coupled Re-visited
Thanks Kent. And so I understand more clearly, in the case of 2 SIs as you
describe, each SI has it's own battery bank, and the solar would be split
between
Behalf Of
Jeff Yago
Sent: Tuesday, October 20, 2009 9:52 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] AC Coupled Re-visited
it is my understanding that the Sunny Island coupled with Sunny Boys is
able to taper charge in an AC coupled system as the 2 inverters are able
to communicate with each other
hes.org] On Behalf Of Kent
Osterberg
Sent: Tuesday, October 20, 2009 11:10 AM
To: glenn.b...@glbcc.com; RE-wrenches
Subject: Re: [RE-wrenches] AC Coupled Re-visited
In off-grid mode the Sunny Island uses frequency shift power control to
reduce the output of the Sunny Boy inverters and thereby regulat
:
re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirpal
Khalsa
Sent: Tuesday, October 20, 2009 12:05 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] AC Coupled Re-visited
Greetings..it is my understanding that the
Sunny Island
coupl
ts.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Kirpal
Khalsa
Sent: Tuesday, October 20, 2009 12:05 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] AC Coupled Re-visited
Greetings..it is my understanding that the Sunny Island coupled with
Sunny Boys is able to tap
ar.com
_
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jeff Yago
Sent: Tuesday, October 20, 2009 9:52 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] AC Coupled Re-visited
it is my understanding that the Sunny Island couple
it is my understanding that the Sunny Island coupled with Sunny Boys is able to taper charge in an AC coupled system as the 2 inverters are able to communicate with each other and the Sunny Island alters the frequency input of the Sunny Boys and lowers the total output of the Sunny Boys to match th
Greetings..it is my understanding that the Sunny Island coupled with
Sunny Boys is able to taper charge in an AC coupled system as the 2
inverters are able to communicate with each other and the Sunny Island
alters the frequency input of the Sunny Boys and lowers the total output of
the Sunny B
Hi, All~
On an AC coupled system as Jeff describes, the "battery charge circuitry" on
the battery based inverter is not even participating.
A straight pure sine inverter...with no charger function built in...would
also "charge" the battery if AC coupled to a SunnyBoy with no grid
available. The "
We have completed several totally different AC coupled systems using different inverters, due to large ground mounted arrays that had to be located a great distance from inverter-battery-generator-grid BAS, which are working just fine even with the mis-match of inverter brands. The SunnyBoy seems
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