[RE-wrenches] Sunny Island with Outback Transformer
Max Issacs
max at southern-energy.com
Thu Feb 12 06:22:25 PST 2009
Howdy Everybody. I am working on a grid tied battery back up system with a
Sunny Island 4248U, a Sunpower 5000x and an Outback PSX 240 autotransformer.
I am using the transformer to step down the 240v power from the Sunpower to
be compatable with the Sunny Island which only accepts 120v. The electrical
inspector is telling me that I cannot use the Outback as it does not derive
a neutral from the source feed referencing NEC 215.11. Has any one else run
into this problem or know of another transformer that would work?
Thanks,
Max Isaacs, Solar Technician
Southern Energy Management
(O) 919.836.0330
(C) 919.538.9712
(F) 919.836.0305
101 Kitty Hawk Drive
Morrisville, NC 27560
www.southern-energy.com
-----Original Message-----
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Subject: RE-wrenches Digest, Vol 2, Issue 171
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Today's Topics:
1. Re: FW: Panel Fire (David Brearley)
2. Re: FW: Panel Fire (Wind-sun.com)
3. Re: another firefighter mis-information link (was: Panel
Fire) (Allan Sindelar)
----------------------------------------------------------------------
Message: 1
Date: Thu, 12 Feb 2009 00:57:00 -0600
From: David Brearley <david.brearley at solarprofessional.com>
Subject: Re: [RE-wrenches] FW: Panel Fire
To: <allan at positiveenergysolar.com>, RE-wrenches
<re-wrenches at lists.re-wrenches.org>
Message-ID: <C5B9245C.26D1%david.brearley at solarprofessional.com>
Content-Type: text/plain; charset="iso-8859-1"
Allan, there are 4 modules pictured in the ?before? photo, not 8. The after
photo show the ?good? modules, the ones that did not burn. This suggests
there are 4 module each on two separate roof faces. Please have another look
at the before picture and count the frames. In the before picture each 250 W
mystery module is supported at 4 corners only. They are some sort of large
format modules. Nothing I can find online matches these characteristics,
especially the superstrate material.
Please re-read the homeowner?s account in these various postings as well.
Sundiego indicates that the module superstrate is not glass, but some other
material. Apparently it is a material that melts when exposed to flame. It
sure isn?t glass, that?s pretty clear by the photos and the written account.
This does not look like an elaborate hoax to me. It does look, as BB points
out, like a potential crime scene, a fraud at the very least. Something was
misrepresented to this customer. It?s pretty apparent that these modules are
not listed and identified for the application. The installation isn?t
vaguely appropriate. It?s just dumb luck?literally?that the house didn?t
burn down.
Clearly the narrator is unreliable, but I don?t think it is malicious, just
ignorance. The dude?s a ?solar newbie? and his house caught on fire. That?s
what it looks like to me.
David
On 2/11/09 6:57 PM, "Allan Sindelar" <allan at positiveenergysolar.com> wrote:
> I guess I'm not the only one who's suspicious of this whole story. This
came
> to me off list. Some of the post here doesn't jive - it's pretty clear
there's
> no glass, and the blurry corner doesn't look it to me.
>
> -----Original Message-----
> From:
>
> I may be very wrong here and I don?t mean to impugn anyone?s integrity
but
> don?t forget that in this era of digital animation movies you can?t always
> believe what you see in photo either. (I'm sure no one here has ever
> Photoshopped a photo to make it more presentable looking.) I couldn't
help
> but notice that the bottom right corner of the photo was surprisingly
blurry
> and indistinct. It is difficult to distinguish one thing from the next,
when
> just a few feet away but out of the range of detail in the photo, things
> seemed to be much clearer. I?ve never seen a photo look like that in
> reality. It?s as if the roof and array have mysteriously melted
together.
> Also, I have never seen tempered glass melt in a low temperature fire.
If
> it were a high temperature fire the roof would not have survived. I
think
> that a great deal of caution is warranted especially considering the lack
of
> detail that the poster is giving about the panels, location,
> installer/supplier, existence of another array etc.
> --- On Wed, 2/11/09, Allan Sindelar <allan at positiveenergysolar.com>
wrote:
> One detail I haven't heard mentioned yet and am curious about - the photo
of
> the fire damage appears to show the corner of another west(?)-facing
array. I
> find it curious that the system owner described a 2 kW system made up of
> eight 250W(!) modules, which are clearly visible in the topmost system
photo.
> There's just a whole lot that doesn't jive in this whole story. Scary to
me .
>
>
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Message: 2
Date: Thu, 12 Feb 2009 00:07:38 -0700
From: "Wind-sun.com" <windsun at wind-sun.com>
Subject: Re: [RE-wrenches] FW: Panel Fire
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Message-ID: <437DFDFE66A34C7BB4139E4479BDFBFD at Warren>
Content-Type: text/plain; charset="iso-8859-1"
Re: [RE-wrenches] FW: Panel FireA new term for bargain basement modules?
............................................................................
......................
----- Original Message -----
From: David Brearley
To: allan at positiveenergysolar.com ; RE-wrenches
Sent: Wednesday, February 11, 2009 11:57 PM
Subject: Re: [RE-wrenches] FW: Panel Fire
each 250 W < mystery module >
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Message: 3
Date: Thu, 12 Feb 2009 05:58:03 -0700
From: "Allan Sindelar" <allan at positiveenergysolar.com>
Subject: Re: [RE-wrenches] another firefighter mis-information link
(was: Panel Fire)
To: "'RE-wrenches'" <re-wrenches at lists.re-wrenches.org>
Message-ID: <E7F0BD42D304487080FEBB1243EEB32A at AllanLaptop>
Content-Type: text/plain; charset="us-ascii"
Kurt,
Yeah, I did, and I tried to post a response. I had to register, and when I
got to "Request a Reference", an apparent glitch kept me from proceeding. I
finally gave up.
Two of five comments debunk the article. One is by Dan Fink of
Otherpower.com, and includes a link to his PowerPoint on the subject.
Allan at Positive Energy.
-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Kurt
Albershardt
Did anyone else catch the link on that page to
http://www.firelink.com/training/articles/5689-the-dangers-of-solar-panels-f
or-firefighters ?
On 2/11/09 6:48 PM, Michael Welch wrote:
This seems corroborating. It has GOT to be the same situation:
http://www.examiner.com/x-432-Wedding-and-Marriage-Examiner~y2009m2d10-Our-w
edding-anniversary-like-a-house-on-fire-literally
<http://www.examiner.com/x-432-Wedding-and-Marriage-Examiner%7Ey2009m2d10-Ou
r-wedding-anniversary-like-a-house-on-fire-literally>
Search the page for "solar" to get to the crux of it
Did anyone else catch the link on that page to
http://www.firelink.com/training/articles/5689-the-dangers-of-solar-panels-f
or-firefighters ?
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