Re: [RE-wrenches] Micro inverter module direct to electric hot water heater

2022-06-30 Thread John Blittersdorf via RE-wrenches 
Glen, You are correct. It is an electric tank water heater according to
Home Depot.

Thanks for Cybo.

John

On Tue, Jun 28, 2022 at 7:23 PM Glenn Burt  wrote:

> Hi John,
>
> Cybo inverters.
>
> You hit a pet peeve in your post and I must comment as we really need to
> be leaders. We have water heaters and hot water tanks... Why would we have
> a 'hot water heater'?
>
> -Glenn
> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>
> -- Original message--
> *From: *John Blittersdorf via RE-wrenches
> *Date: *Tue, Jun 28, 2022 6:04 PM
> *To: *RE-wrenches;
> *Cc: *John Blittersdorf;
> *Subject:*[RE-wrenches] Micro inverter module direct to electric hot
> water heater
>
> Awhile back there was a thread about a micro inverter that could be used
> to connect directly to an electric hot water heater.  Can someone steer me
> to that thread or the inverter manufacturer?
>
> John Blittersdorf
>
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Re: [RE-wrenches] wire management on Qcell AC module

2022-06-30 Thread Dave Tedeyan via RE-wrenches 
Jerry,
Sorry for any confusion there. With that first photo with the leads taped,
I was showing how the module came from the factory. The other two photos of
the backsheet show how far you can pull the leads when the tape is off.
With the setup I explained above, that was with the tape removed from the
modules.
Cheers,
Dave


On Thu, Jun 30, 2022, 7:00 PM Jerry Shafer via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

>
> Dave
> Nothing should be attached to the back sheet as it can be an issue down
> the road, I might want to look at looping the cords to let them
> statically remain in location without the tape, the loop will prevent
> drooping and if properly located rest on the rail.
> Jerry
>
> On Wed, Jun 29, 2022 at 1:07 PM Dave Tedeyan via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Hi all,
>> I realize it has been a while, but I've been meaning to send out an
>> update. With these modules in particular, one lead was long enough to get a
>> clip on the side frame. We found that if we put the upper rail as low as
>> possible allowed by the module (about 19.75" from the top) then it roughly
>> split the distance from the junction box to the microinverter. It seems
>> that even over time, there is not enough slack with the rail there for the
>> wire to ever reach the roof. It is possible that it will eventually sag
>> such that the wire is visible under the rails, but at least for now, you
>> cannot see any wires under the array.
>>
>> Cheers,
>> Dave
>>
>> On Thu, Jun 2, 2022 at 1:23 PM Jason Szumlanski via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>> Except if it is UL listed and tested as part of the assembly. Haha. I
>>> seriously don't that happened, but technically...
>>>
>>> Bottom line, a manufacturer should supply guidance on this.
>>>
>>> On Thu, Jun 2, 2022, 1:02 PM Dana Orzel via RE-wrenches <
>>> re-wrenches@lists.re-wrenches.org> wrote:
>>>
 Tape is not approved as a wire retaining device as far as I can find in
 the NEC :-]





 Dana Orzel -  E - d...@solarwork.com -  C - 208.721.7003



 *From:* RE-wrenches  *On
 Behalf Of *Jerry Shafer via RE-wrenches
 *Sent:* Thursday, June 2, 2022 9:40 AM
 *To:* RE-wrenches 
 *Cc:* Jerry Shafer 
 *Subject:* Re: [RE-wrenches] wire management on Qcell AC module



 Regarding the tape on the back sheet

 I have seen Novis installers keep the tape to secure the modules and I
 have also seen it with the tape stll attached to the wires laying on the
 roof so in my humble opinion the tape is for shipping only and is not to be
 used as a wire management system.

 Jerry

 NABCEP PV Inspector



 On Thu, Jun 2, 2022 at 6:37 AM Dave Tedeyan via RE-wrenches <
 re-wrenches@lists.re-wrenches.org> wrote:

 Hi All,



 I just got some of the Qcell 360w AC modules that have the Enphase
 microinverter factory applied to the back. The module is the half cut cell
 type with the DC leads coming from either side of the middle of the module.
 The modules come with the wires taped to the back of the module. If you
 remove that tape, there appears to be almost no way to properly manage
 those wires. Is that tape meant to just keep the wire on the back of the
 module forever? Would that even last more than a year? I am curious what
 other people have done for these if they have used them or something
 similar. Maybe if you get the rail in the right spot, the wires will just
 sit on the rail...



 I realize that we have had a thread on wire management with half cut
 cell modules before, but this is a little different, as I am specifically
 asking about that tape and if anyone knows if it holds up over time.



 Cheers,

 Dave



 --

 [image: Logo] 


 *Dave Tedeyan, P.E.Owner | Sungineer Solar*

 *p: *he | him | his
 *a: *1653 Slaterville Rd. | Ithaca, NY 14850
 *w:* www.sungineersolar.com 
 *c:* (607) 288-2898

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[RE-wrenches] HT I-V curve tracer

2022-06-30 Thread Kristopher Schmid via RE-wrenches 
Hi All,

Does anyone use an HT curve tracer?  If so, I could use some help.  The
manual leaves much to be desired.  Contact me off list, please and thanks!

Shine On!

Kris Schmid
Legacy Solar, LLC
137 West 1st Avenue
Luck, WI 54853
www.legacysolar.com
715-653-4295
NABCEP Certified PV Installation Professional
Licensed Wisconsin Master Electrician
BSEE
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Re: [RE-wrenches] wire management on Qcell AC module

2022-06-30 Thread Jerry Shafer via RE-wrenches 
Dave
Nothing should be attached to the back sheet as it can be an issue down the
road, I might want to look at looping the cords to let them
statically remain in location without the tape, the loop will prevent
drooping and if properly located rest on the rail.
Jerry

On Wed, Jun 29, 2022 at 1:07 PM Dave Tedeyan via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Hi all,
> I realize it has been a while, but I've been meaning to send out an
> update. With these modules in particular, one lead was long enough to get a
> clip on the side frame. We found that if we put the upper rail as low as
> possible allowed by the module (about 19.75" from the top) then it roughly
> split the distance from the junction box to the microinverter. It seems
> that even over time, there is not enough slack with the rail there for the
> wire to ever reach the roof. It is possible that it will eventually sag
> such that the wire is visible under the rails, but at least for now, you
> cannot see any wires under the array.
>
> Cheers,
> Dave
>
> On Thu, Jun 2, 2022 at 1:23 PM Jason Szumlanski via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Except if it is UL listed and tested as part of the assembly. Haha. I
>> seriously don't that happened, but technically...
>>
>> Bottom line, a manufacturer should supply guidance on this.
>>
>> On Thu, Jun 2, 2022, 1:02 PM Dana Orzel via RE-wrenches <
>> re-wrenches@lists.re-wrenches.org> wrote:
>>
>>> Tape is not approved as a wire retaining device as far as I can find in
>>> the NEC :-]
>>>
>>>
>>>
>>>
>>>
>>> Dana Orzel -  E - d...@solarwork.com -  C - 208.721.7003
>>>
>>>
>>>
>>> *From:* RE-wrenches  *On
>>> Behalf Of *Jerry Shafer via RE-wrenches
>>> *Sent:* Thursday, June 2, 2022 9:40 AM
>>> *To:* RE-wrenches 
>>> *Cc:* Jerry Shafer 
>>> *Subject:* Re: [RE-wrenches] wire management on Qcell AC module
>>>
>>>
>>>
>>> Regarding the tape on the back sheet
>>>
>>> I have seen Novis installers keep the tape to secure the modules and I
>>> have also seen it with the tape stll attached to the wires laying on the
>>> roof so in my humble opinion the tape is for shipping only and is not to be
>>> used as a wire management system.
>>>
>>> Jerry
>>>
>>> NABCEP PV Inspector
>>>
>>>
>>>
>>> On Thu, Jun 2, 2022 at 6:37 AM Dave Tedeyan via RE-wrenches <
>>> re-wrenches@lists.re-wrenches.org> wrote:
>>>
>>> Hi All,
>>>
>>>
>>>
>>> I just got some of the Qcell 360w AC modules that have the Enphase
>>> microinverter factory applied to the back. The module is the half cut cell
>>> type with the DC leads coming from either side of the middle of the module.
>>> The modules come with the wires taped to the back of the module. If you
>>> remove that tape, there appears to be almost no way to properly manage
>>> those wires. Is that tape meant to just keep the wire on the back of the
>>> module forever? Would that even last more than a year? I am curious what
>>> other people have done for these if they have used them or something
>>> similar. Maybe if you get the rail in the right spot, the wires will just
>>> sit on the rail...
>>>
>>>
>>>
>>> I realize that we have had a thread on wire management with half cut
>>> cell modules before, but this is a little different, as I am specifically
>>> asking about that tape and if anyone knows if it holds up over time.
>>>
>>>
>>>
>>> Cheers,
>>>
>>> Dave
>>>
>>>
>>>
>>> --
>>>
>>> [image: Logo] 
>>>
>>>
>>> *Dave Tedeyan, P.E.Owner | Sungineer Solar*
>>>
>>> *p: *he | him | his
>>> *a: *1653 Slaterville Rd. | Ithaca, NY 14850
>>> *w:* www.sungineersolar.com 
>>> *c:* (607) 288-2898
>>>
>>> ___
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[RE-wrenches] WATER COOLED - 1800 RPM - 13KW GENERATORS INQUIRY

2022-06-30 Thread Dana Orzel via RE-wrenches 
Hey now all you off grid designer/installers,

 

I just had a conversation with generator manufacturer (name withheld for the
moment), about 8-13KW water cooled gensets with UL & LP gas powered. I
explained that there is a long time hole in the market since Onan & Kohler
dropped their gensets for prime power in this size range.

 

If they made the investment to produce & UL certify a 13KW - 1800 RPM -
water cooled - 2 wire start, prime power rated - 120/240vac genset, how many
off grid systems are being installed with oversized gensets?

 

If this was available how many units would each of you be interested in per
year? I am not asking for a commitment just a market survey for this sized
unit.

 

If there was 20-30 companies selling 4-5+ each per year this might be a
possibility.

 

Let me know either off list or on list (if this is OK ? Michael let us know)
& I hope there is a possibility here for more appropriately sized &
available gensets for our off grid client systems.

I will be passing along this research to the OE manufacturer. If you do not
want your name passed along let me know for now.

 

 

 

Dana Orzel  Great Solar Works, Inc. 

C - 208.721.7003   d...@solarwork.com

Idaho Contractor - # 028765 Idaho PV # 028374

NABCEP # 051112-136   www.greatsolarworks.com
 

"Responsible Technologies for Responsible People since 1988"  

 

P Please consider the environment before printing this email.

 

 

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