Re: [RE-wrenches] Attaching PV with VELCRO

2023-04-11 Thread Peter Giroux via RE-wrenches 
Corey

 

Thin film like Unisolar but with Velcro?? Hard to see it making wind 
requirements or lasting.

 

Thx for the smile

peter

 

From: RE-wrenches  On Behalf Of 
Corey Shalanski via RE-wrenches
Sent: Tuesday, April 11, 2023 5:40 PM
To: re-wrenches@lists.re-wrenches.org
Cc: Corey Shalanski 
Subject: [RE-wrenches] Attaching PV with VELCRO

 

Wrenches,

 

As far out as the subject line might seem, a company in Italy has apparently 
developed a system for attaching PV arrays to flat roofs using strips of VELCRO 

 .

 

The potential advantages of this system seem hard to ignore:

   - lightweight

   - no ballast required (also, no mechanical attachments)

   - quick installation and easy assembly

 

Has anyone ever encountered anything similar here in the states? Any opinions 
about the feasibility of this approach?

 

Corey Shalanski

Portland, Jamaica

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Re: [RE-wrenches] Attaching PV with VELCRO

2023-04-11 Thread Daniel Young via RE-wrenches 
“I would also question the adhesive if it will take years of heat, water and 
the material it's adhered too.  “

That is the issue I found wit this.

I installed hundreds of kW of a “not to be named” roofing manufacturers solar 
system that used Velcro years back. Lets just say we spent more hours carrying 
solar modules back on the roof after they blew off over the next 4 years than 
we did installing the original system (at least it felt like it). The Velcro to 
roof glue connection is what gave up every time. Biological growth under the 
hot modules I think really deteriorated the glue joint quickly. In case anyone 
is wondering, we used the roofers provided adhesive primer, rolled on adhesive, 
and did so under their direct supervision and sign off.

That array has since been removed at the roofers expense.

Every system is different, and materials science is changing all the time, 
maybe this is better?

I would approach this with caution.

--

Danny Young
NABCEP PV Installation Professional #031508-90
Engineering Team Lead
Solar Energy Solutions
Lexington | Louisville | Bloomington | Cincinnati | Evansville | Indianapolis
513-448-5176 (mobile)
877-312-7456 (Main Office)
da...@sesre.com

From: RE-wrenches  On Behalf Of 
Jerry Shafer via RE-wrenches
Sent: Tuesday, April 11, 2023 5:50 PM
To: RE-wrenches 
Cc: Jerry Shafer 
Subject: Re: [RE-wrenches] Attaching PV with VELCRO

Wrenches, Corey
Yes it was a thing in California but soon fell off the radar, They were based 
or had a shop in Sacramento CA. It was mainly designed for BIPV but was adopted 
to framed panels, grounding is an issue, mounting of the electrical another. l 
have had bolted modules rip out of unirac in Hawaii during a hurricane so no 
velcro for me. I would also question the adhesive if it will take years of 
heat, water and the material it's adhered too.
Fun times

On Tue, Apr 11, 2023, 2:41 PM Corey Shalanski via RE-wrenches 
mailto:re-wrenches@lists.re-wrenches.org>> 
wrote:
Wrenches,

As far out as the subject line might seem, a company in Italy has apparently 
developed a system for attaching PV arrays to flat roofs using strips of 
VELCRO.

The potential advantages of this system seem hard to ignore:
   - lightweight
   - no ballast required (also, no mechanical attachments)
   - quick installation and easy assembly

Has anyone ever encountered anything similar here in the states? Any opinions 
about the feasibility of this approach?

Corey Shalanski
Portland, Jamaica
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Re: [RE-wrenches] Attaching PV with VELCRO

2023-04-11 Thread Jerry Shafer via RE-wrenches 
Wrenches, Corey
Yes it was a thing in California but soon fell off the radar, They were
based or had a shop in Sacramento CA. It was mainly designed for BIPV but
was adopted to framed panels, grounding is an issue, mounting of the
electrical another. l have had bolted modules rip out of unirac in Hawaii
during a hurricane so no velcro for me. I would also question the adhesive
if it will take years of heat, water and the material it's adhered too.
Fun times


On Tue, Apr 11, 2023, 2:41 PM Corey Shalanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Wrenches,
>
> As far out as the subject line might seem, a company in Italy has
> apparently developed a system for attaching PV arrays to flat roofs using
> strips of VELCRO
> 
> .
>
> The potential advantages of this system seem hard to ignore:
>- lightweight
>- no ballast required (also, no mechanical attachments)
>- quick installation and easy assembly
>
> Has anyone ever encountered anything similar here in the states? Any
> opinions about the feasibility of this approach?
>
> Corey Shalanski
> Portland, Jamaica
> ___
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[RE-wrenches] Attaching PV with VELCRO

2023-04-11 Thread Corey Shalanski via RE-wrenches 
Wrenches,

As far out as the subject line might seem, a company in Italy has
apparently developed a system for attaching PV arrays to flat roofs using
strips of VELCRO

.

The potential advantages of this system seem hard to ignore:
   - lightweight
   - no ballast required (also, no mechanical attachments)
   - quick installation and easy assembly

Has anyone ever encountered anything similar here in the states? Any
opinions about the feasibility of this approach?

Corey Shalanski
Portland, Jamaica
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Re: [RE-wrenches] Sol-ark without batteries

2023-04-11 Thread Chris Sparadeo via RE-wrenches 
Hi William,

I think my opinion would be yes, but why? We have a few no-battery
installs, but they don’t preform well in grid outage scenarios. If the
client is looking for future battery back-up, but not ready to invest just
yet, it’s an option. Don’t expect seamless grid forming output with an
outage. Also, don’t expect to connect a generator via Sol Ark for pass
through during and outage.

My $0.02 is to convince the client to tag on a battery, albeit minimal
capacity.

Kindly,

Chris

On Tue, Apr 11, 2023 at 4:22 PM Christopher Warfel via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Yes, we just did one.  Chris
> On 4/10/2023 7:38 PM, William Miller via RE-wrenches wrote:
>
> Friends:
>
> Can the Sol-ark 15 be installed without batteries in grid-tie mode?
>
> I have been told the answer is yes but I’d like confirmation.
>
> Thanks in advance.
>
> William Miller
> --
>
> William Miller
> Miller Solar.com
> 895-438-5600
> www.millersolar.com
>
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>  ENTECH Engineering, Inc.
> PO Box 871, Block Island, RI 02807
> 401-466-8978
> 
>
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Re: [RE-wrenches] Sol-ark without batteries

2023-04-11 Thread Christopher Warfel via RE-wrenches 

Yes, we just did one.  Chris

On 4/10/2023 7:38 PM, William Miller via RE-wrenches wrote:

Friends:

Can the Sol-ark 15 be installed without batteries in grid-tie mode?

I have been told the answer is yes but I’d like confirmation.

Thanks in advance.

William Miller
--

William Miller
Miller Solar.com
895-438-5600
www.millersolar.com 

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


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