Re: [RE-wrenches] Large current battery combiners, UL Listing

[Michael Morningstar via RE-wrenches]

No, I haven't. I'll do some testing tomorrow as we have 60 holes/taps to do
in the above mentioned bussing

On Mon, Sep 12, 2022 at 7:54 AM frenergy via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Michael,
>
>  Are you using kerosene as a cutting fluid?  We've had
> better luck with that in softer than steel metals.
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
>
> On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote:
> > We've gotten around needing UL listings for one-off in house
> > fabrication by running things through a licensed engineer. Right now
> > we are building a gutter bus which has two 1/2" x 4" x 20' copper bars
> > in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with
> > slots routed out for the bars as insulators. This is for 24 Discover
> > AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer
> > sign off on our designs.
> >
> > I'd be interested in learning tricks for tapping 3/8" in thick copper.
> > I've never been able to get consistent results and resort to
> > thru-bolting.
>
>
> --
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-- 

Michael Morningstar


Morningstar Electric

PO Box 1494

Mount Shasta, CA 96067

530-921-0560

mjmornings...@gmail.com
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Re: [RE-wrenches] SUNPOWER Costumer Service

[Marco Mangelsdorf via RE-wrenches]

Over the past year there's been a dramatic changing of the guard at
SunPower.  Pretty much all the top people have left, from the CEO on down.
And they've made interesting choices, including to completely exit the DC
mods business selling only their AC Equinox products.
The SunPower of old is no more.
marco

On Mon, Sep 12, 2022 at 9:01 AM Solar Energy Solutions via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Dear all those who know more than I,
>
> For 15 years I have been bragging about the GREAT SunPower customer
> service.
>
> What has changed?  I have spent hours on the phone, often times being
> disconnected or left to perish on hold.  I don't seem to be able to get
> decent tech support or data recovery.
>
> Oh Great Spirits, Speak!
>
>
> *Andrew Koyaanisqatsi*
> *President*
>
>
> *Solar Energy Solutions, Inc.The BRIGHT CHOICE*
> *Since 1987,*
> * helping you and your Portland neighborsmove** towards an
> environmentally sustainable future.*
>
> *503-238-4502www.SolarEnergyOregon.com 
> *
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[RE-wrenches] SUNPOWER Costumer Service

[Solar Energy Solutions via RE-wrenches]

Dear all those who know more than I,
For 15 years I have been bragging about the GREAT SunPower customer service.  

What has changed?  I have spent hours on the phone, often times being 
disconnected or left to perish on hold.  I don't seem to be able to get decent 
tech support or data recovery.
Oh Great Spirits, Speak!

 Andrew KoyaanisqatsiPresidentSolar Energy Solutions, Inc.
The BRIGHT CHOICE
Since 1987, helping you and your Portland neighbors
move towards an environmentally sustainable future.503-238-4502
www.SolarEnergyOregon.com ___
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Re: [RE-wrenches] Old Solar Modules

[Allan Sindelar via RE-wrenches]

The Photowatt is French. Early 80s most likely. Windy Dankoff imported them for 
a few years, late 70s - early 80s. They’re remarkable modules. I had (before I 
retired) several clients still using them. Every one is still putting out at or 
close to rated output, 40 years later. The only problem I ever encountered is 
the output studs breaking off. And years ago I used to solder leads to the 
ribbons with Big Bertha - a 100w soldering iron. I made clear up front that I 
wouldn’t guarantee my repair work, but it worked every time, and never 
shattered the glass. 
The 50w Arco would likely be late 80s, as before that they were 32-35w. 
The Solarex is likely a VLX53 from the mid-late 90s. The VLX had a thin frame. 
Hope that helps. Other old timers can correct me if I’m wrong with any of this. 
Allan Sindelar 

Sent from my iPhone

> On Sep 12, 2022, at 4:29 PM, Amos Post via RE-wrenches 
>  wrote:
> 
> Hi all,
> 
> I have a few old modules I am trying to date best I can.  One is an Photowatt 
> (Arco?) 55Watt silver frame yellow backsheet, one is a Solarex 53Watt silver 
> frame grey back sheet, and one Arco 50Watt black frame black back sheet.  
> Looking for help with dates and if anyone knows of good websites for looking 
> up specs and/or dates on these older modules?
> 
> Thanks,
> Amos
> 
> 
>Amos Post
>Integrity Energy
>   W 802.763.7023
>C 802.291.2188
> ienergyVT.com
> Facebook
> 
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Re: [RE-wrenches] Large current battery combiners, UL Listing

[frenergy via RE-wrenches]

Michael,

            Are you using kerosene as a cutting fluid?  We've had 
better luck with that in softer than steel metals.


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049

On 9/11/2022 7:00 PM, Michael Morningstar via RE-wrenches wrote:
We've gotten around needing UL listings for one-off in house 
fabrication by running things through a licensed engineer. Right now 
we are building a gutter bus which has two 1/2" x 4" x 20' copper bars 
in a 10" x 10" gutter. We are using 2" x 9" x 9" UDPM plates with 
slots routed out for the bars as insulators. This is for 24 Discover 
AES and 8 Sol-Ark's. It usually costs about 1K to have an engineer 
sign off on our designs.


I'd be interested in learning tricks for tapping 3/8" in thick copper. 
I've never been able to get consistent results and resort to 
thru-bolting.



--
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Re: [RE-wrenches] Old Solar Modules

[Christopher Warfel via RE-wrenches]

If you can't find anything, I would think measuring Voc, adjusting for 
temperature,  and then dividing into the wattage would give you some 
reasonable approximations. Chris


On 9/12/2022 10:28 AM, Amos Post via RE-wrenches wrote:

Hi all,

I have a few old modules I am trying to date best I can.  One is an 
Photowatt (Arco?) 55Watt silver frame yellow backsheet, one is a 
Solarex 53Watt silver frame grey back sheet, and one Arco 50Watt black 
frame black back sheet.  Looking for help with dates and if anyone 
knows of good websites for looking up specs and/or dates on these 
older modules?


Thanks,
Amos


       Amos Post
Integrity Energy
  W 802.763.7023
   C 802.291.2188
ienergyVT.com 
Facebook 


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--
            Christopher Warfel
                 ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
                                401-466-8978


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[RE-wrenches] Old Solar Modules

[Amos Post via RE-wrenches]

Hi all,

I have a few old modules I am trying to date best I can.  One is an Photowatt 
(Arco?) 55Watt silver frame yellow backsheet, one is a Solarex 53Watt silver 
frame grey back sheet, and one Arco 50Watt black frame black back sheet.  
Looking for help with dates and if anyone knows of good websites for looking up 
specs and/or dates on these older modules?

Thanks,
Amos


   Amos Post
   Integrity Energy
  W 802.763.7023
   C 802.291.2188
ienergyVT.com 
Facebook 
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