Good catch Bob, there seems to be a page missing from that table... this
report from Bill's site has the complete table (at the end of the file,
again).
http://www.brooksolar.com/files/Expedited_Explanation-5-6-09.pdf
DKC
-------- Original Message --------
Subject: Re: [RE-wrenches] SWR2500U Inverter
From: robert ellison <reelli...@gmail.com>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Date: 2009/11/18 11:01
My eyes must be bad, i just looked at the entire list 3 times and New
York state is not on it anywhere.
I have see 48 below and just wanted to see what the averages ctually were.
Bob
On Wed, Nov 18, 2009 at 7:30 AM, Dave Click <davecl...@fsec.ucf.edu
<mailto:davecl...@fsec.ucf.edu>> wrote:
Just a note here- rather than using the record lows, you can go back
to the future and use the ASHRAE minimum expected temperatures as
the 2011 NEC will allow explicitly. In the '08, it says to use the
"lowest expected ambient temperature," for which the ASHRAE
temperatures are more appropriate than record lows. These ASHRAE
temps will be higher than the record lows and will add a little more
cushion there at 600 VDC.
So where to get these temperatures? Starting on page 47:
http://www.solarabcs.org/permitting/Expermitprocess.pdf
Also, in case you didn't know, www.pvselect.com
<http://www.pvselect.com/> is another option for string sizing that
features multiple inverters and a 1 degree temperature step rather
than the 9 degree (F) temperature step on the SMA sizer. They have
the Kyocera KD130 in their database, but not the KC130.
DKC
-------- Original Message --------
Subject: Re: [RE-wrenches] SWR2500U Inverter
From: Brian Teitelbaum <bteitelb...@aeesolar.com
<mailto:bteitelb...@aeesolar.com>>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org
<mailto:re-wrenches@lists.re-wrenches.org>>
Date: 2009/11/18 01:34
Joel,
The SMA SWR2500U inverter has been a long discontinued model.
If you want to use an SMA inverter, go to the SMA website to use
their excellent sizing program. Plug in the module, and your
record minimum and average maximum temps for the site, and look
for a current model inverter that will work. All of the "U"
series inverters (except for the 700U) are discontinued models,
and the "US" series are the current models.
If your min temp is not below 14⁰F, it looks like you can use
all 24 in one series string with the 4000US inverter, but that
gets you awfully close to 600VDC (595VDC) at 14⁰F. You might
want to play it safe and drop one of the modules. Unfortunately,
none of the SMA inverters will operate with only 12 modules in a
string (with two strings). However, a Fronius IG-3000 will, so
you might want to go with that, although it has a lower efficiency.
Brian Teitelbaum
AEE Solar
-----Original Message-----
From: re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>
[mailto:re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>] On Behalf Of
Joel Davidson
Sent: Tuesday, November 17, 2009 4:56 PM
To: RE-wrenches
Subject: [RE-wrenches] SWR2500U Inverter
Wrenches,
Our customer has 24 each Kyocera KC130 modules and wants to go
grid-tied.
Can he use an SMA SWR2500U inverter with the fan kit? Is there a
better
inverter that will use all of his modules? If you have an
SWR2500U or a
better inverter option for sale, please contact me off-list.
Thank you very
much.
Joel Davidson
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