[RE-wrenches] SWR2500U Inverter

[robert ellison]

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 <daveclick at 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 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 <bteitelbaum at aeesolar.com>
> To: RE-wrenches <re-wrenches at 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-bounces at lists.re-wrenches.org [mailto:
>> re-wrenches-bounces at 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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