[RE-wrenches] phase issues with SB8000US

[Nik Ponzio]

Wrenchers,

We installed our first SunnyBoy 8000 this month. The customer (happens to be
electrical engineer) is complaining that their computer UPS systems are
tripping whenever the air conditioner (with 120V fan) comes on. This didn't
happen before commissioning the solar system and it doesn't happen when the
inverter is disconnected. So, of course, they suspect the inverter is the
culprit. The theory being that the inverter itself is going out of phase
when one of the legs is loaded down momentarily.

So far, SMA tech support is not agreeing. They are blaming the problem on
the unbalanced loads and/or the UPS systems. Their latest solution is to
move the UPS systems to the other leg. Not surprisingly, the customer is not
impressed with this game of Kick the Can Down the Road.

The inverter does not drop the grid, nor display any error codes when this
happens. This is a 200A, 240V service. The 120V fan draws about 10A
continuously, 40A surge.

Anybody else with similar experiences? Suggestions?

Thanks
Nik

--
Nicholas Ponzio
NABCEP Certified Solar PV Installer

Building Energy
1570 South Brownell Road
Williston, VT 05495
t: 802-859-3384 x15
f: 802-658-3982
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[RE-wrenches] we have lost a good man

[Nik Ponzio]

The industry has lost a pioneer and the world has lost a really decent
human.

I don't know any details yet but Jim Grundy of Elemental Energy died
unexpectedly yesterday.

I didn't know him well but I liked everything I knew about him. He was
honest and kind and he did good work. He truly was an example for all of us.
I wish I had told him what I thought of him when I had a chance.

You will be missed, Jim. Go in peace.

-Nik
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Re: [RE-wrenches] Working on metal roofs.

[Nik Ponzio]

Here's a product that I just learned about. The roofers we work with love
these. I haven't bought a set yet but it's on the list...

http://www.metalplusllc.com/
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[RE-wrenches] SolarWorld Poly

[Nik Ponzio]

Esteemed Wrenches,

I have been using a lot of SolarWorld mono-crystalline modules this year and
I am quite happy with the product. This week we installed our first
SolarWorld poly-crystalline array. I was surprised at how different the two
modules are. The glass on the poly module is highly reflective. I went so
far as to call my distributor to make sure I hadn't gotten a bad batch that
missed the anti-reflective coating step. That's what it seems like!

The other significant difference is the frame style used. The Poly are only
compatible with top-down clamping. I was aware of this from the datasheets
but I had no idea that the glass would be so different.

Take a look at some side-by-side photos here:
https://picasaweb.google.com/109634809794570027207/SolarWorldMonoVsPoly?authkey=Gv1sRgCMuLy4v_ivTUAg&feat=directlink

Just a heads-up to anyone considering getting into SolarWorld.

Happy Summer!
Nik

--
Nicholas Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
http://www.BuildingEnergyVT.com
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Re: [RE-wrenches] SolarWorld Poly

[Nik Ponzio]

Bill,

I was afraid of that!

One thing I didn't mention earlier is that the old-style frame widths of the
Mono have some significant variation from end to end. This makes it
difficult to maintain a nice even gap between rows. The newer Poly frames
(top-down only) seem to have a much tighter tolerance on the square
dimensions. I still like the Mono style better, but it sounds like we will
have to adapt...

We did also have two freight-damaged shipments. This is mostly an issue
caused by a careless forklift operator but the factory & distributors are
also cutting corners with the packaging.

If you see receive a pallet that looks like this,
https://picasaweb.google.com/lh/photo/_23bAMmghhHRqFjEzsOtkyibeFbxo7C9BtDVyGYSu5g?feat=directlink
I suggest you refuse delivery and let the shipper deal with the freight
claim. What a pain that is!

Otherwise, no failures yet. All systems are go!

-Nik


On Wed, Jun 22, 2011 at 6:29 PM, Bill Hoffer  wrote:

> Nik
>
> I just bought a new mono solarworld 250 and it also has a new stle frame
> with no feet, I believe they have switched to the new frame for all their
> models now.  Limits options for mounting to only using top clips, not good
> in my opinion.   I believe they are working on their own clip system, last I
> saw it looked a bit "German" and a liitle too fancy for my tastes.  I have
> not compared glass surfaces between the two models, but I would suspect that
> they are switchign to the " cheaper reflective glass on all their new
> models.  Cutting cost in one place and adding in another!  Over all thouh a
> good solid module.
>
> Bill
>
> On Wed, Jun 22, 2011 at 1:45 PM, Nik Ponzio 
> wrote:
>
>> Esteemed Wrenches,
>>
>> I have been using a lot of SolarWorld mono-crystalline modules this year
>> and I am quite happy with the product. This week we installed our first
>> SolarWorld poly-crystalline array. I was surprised at how different the two
>> modules are. The glass on the poly module is highly reflective. I went so
>> far as to call my distributor to make sure I hadn't gotten a bad batch that
>> missed the anti-reflective coating step. That's what it seems like!
>>
>> The other significant difference is the frame style used. The Poly are
>> only compatible with top-down clamping. I was aware of this from the
>> datasheets but I had no idea that the glass would be so different.
>>
>> Take a look at some side-by-side photos here:
>>
>> https://picasaweb.google.com/109634809794570027207/SolarWorldMonoVsPoly?authkey=Gv1sRgCMuLy4v_ivTUAg&feat=directlink
>>
>> Just a heads-up to anyone considering getting into SolarWorld.
>>
>> Happy Summer!
>> Nik
>>
>> --
>> Nicholas Ponzio
>> Building Energy
>> 1570 South Brownell Road
>> Williston, VT 05495
>> http://www.BuildingEnergyVT.com
>>
>>
>>
>>
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>
>
> --
> Bill Hoffer PE
> NABCEP Certified Solar PV Installer™
> Sunergy Engineering Services PLLC
> 2504 Columbia Ave NW
> East Wenatchee WA 98802-3941
> suneng...@gmail.com (509)470-7762
> Cell(509)679-6165
>
>
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[RE-wrenches] FINALLY! A flashed solar thermal penetration option

[Nik Ponzio]

We have been fabricating our own flashings recently but I just came across
this product:

http://www.zillarac.com/Products/Mounting/Roof/NEWThermalFlashing.aspx

Looks good! I haven't seen it in person but I did see a sample of their PV
attachment flashing assembly (similar to Quickmount) and it looked solid.

I would appreciate any feedback from the group.

Best,
Nik


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Building Energy
http://www.BuildingEnergyVT.com
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[RE-wrenches] best method for covering solar thermal collectors?

[Nik Ponzio]

Hi Wrenchers,

What have you found to be the best way to cover flat-plate collectors? I
have several systems that need to be filled about 2 months before
occupancy. The Heliodyne collectors I used for this project do not have a
protective film like the Viessmann collectors.

Any feedback is appreciated.
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Re: [RE-wrenches] 90 degree wire bends

[Nik Ponzio]

 I had an off-grid customer report that their huge well pump surge caused
an insulation melt-down at a tight bend in the wire.


On Wed, Nov 16, 2011 at 11:01 PM, Darryl Thayer wrote:

> I have seen the lightening damage at tight bends, but in my electrical
> career of 60+ years I have not seen any other
> problems.
> Darryl
>
> *From:* Ray Walters 
> *To:* RE-wrenches 
> *Sent:* Wednesday, November 16, 2011 12:11 PM
> *Subject:* Re: [RE-wrenches] 90 degree wire bends
>
>  It seems that if the strands were stretched and therefore thinned, that
> that would increase resistance, some. I think more importantly, the
> insulation  bunchs up and cracks, and is definitely compromised.  Also with
> strain hardening of copper, I'm sure some strands could break internally
> with a tight enough bend. I've heard at least for bare ground wires that
> lightning will jump off to the case at tight bends, but I've never actually
> seen that.
> Aside from all that, is there actually an increased impedance from a tight
> bend (like in plumbing)? I don't know.
> I've had to stop more than one journeyman from violating 300.34. I just
> tell them the bends should look like the long sweeps in conduit relative to
> the diameter of the wire: also purdy.
>
> Aloha,
>
> Ray
>
> On 11/16/2011 10:35 AM, Marco Mangelsdorf wrote:
>
>  Some electricians have great fun in making 90 degree wire bends to try
> and make their enclosure wiring look so purdy.
>
> Given the importance of maintaining wiring radiuses, this can’t be a good
> idea, can it?  Is the issue greater resistance when the wire is bent at a
> straight 90 degrees (or more)?
>
> Thanks,
> marco
>
>
>
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[RE-wrenches] dual stacked inverters on 208V service

[Nik Ponzio]

Hi Gang,

I have a problem. We are installing a gridtie PV system  with 2 
battery-based inverters for 240V. The service coming in to the condo is 
120/208 split-phase fed from 3-phase 208 in main building. The master 
inverter pickups up L1 but the slave inverter will not sync. What am I 
missing?

Thanks and Happy New Year to all!


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Re: [RE-wrenches] Best angle - direct grid tie

[Nik Ponzio]

Drake,

I just noticed a new feature with the Pathfinder Assistant called the 
"Optimal Azimuth and Tilt Tool."  Find it on the Tools menu. I don't 
believe this function accounts for snow cover but pretty handy nonetheless. 


Best regards,
Nik



From: "Drake Chamberlin" 

... what really is the optimum tilt angle for a direct grid tie system?  ...
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[RE-wrenches] copper weatherhead?

[Nik Ponzio]

Wrenches,

We have a project coming up that includes penetrating a copper roof with our
PV conductors. What are your preferred methods for penetrating and flashing
the conduit (going into a gable wall is not an option.)

Thanks in advance.



Best regards,
Nik

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Building Energy
1570 South Brownell Road
Williston, VT 05495
t: 802-859-3384 x15
f: 802-658-3982
c: 802-318-7003
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"Building Solutions for a Sustainable Future"
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Re: [RE-wrenches] solar hot water penetration flashing

[Nik Ponzio]

This is an on-going problem, apparently. We were getting the coolie cap
fittings from EFI but they got out of the solar business recently.

Does anyone have a source for these now?

Thanks in advance.


--
Nicholas Ponzio
NABCEP Certified Photovoltaic Installer

Building Energy
1570 South Brownell Road
Williston, VT 05495
t: 802-859-3384 x15
f: 802-658-3982
c: 802-365-1973
www.BuildingEnergyVT.com


On Wed, Dec 10, 2008 at 9:24 PM, Karl Schwingel  wrote:

> I use similar boots, and design the penetration so the insulation and wrap
> ( we use aluminum) nearly cover the whole boot by the time you're all done.
>  you're left with about 1/2" of boot showing all the way around.
> where can I get the coolie cap style brazed copper flashings?
>
> karl
>
> Todd Cory wrote:
>
>> I use accordion style rubber boots. These are typically attached to the
>> roofing with a bead of silicone underneath and gasketed metal roofing screws
>> on top. These are made for all kinds of metal roof penetrations and I have
>> even seen them used for 6" metalbestos stove flues. One note of caution, the
>> orange "high temperature" ones are (I think) rated only to 180 degrees F. so
>> you want to make sure the SHW fluid never exceeds this. Also in time, like
>> any rubber flashing on a roof the rubber will deteriorate from UV. I build a
>> show shed over my system's plumbing which shades it so hopefully this will
>> not be in issue in ~20 years.
>>
>> Todd
>>
>>
>>
>>
>> troy Harvey wrote:
>>
>>> Any thoughts on how to flash a copper pipe roof penetration on a metal
>>> roof. The brazed copper flashing we typically use would cause corrosion with
>>> the steel roof I'm afraid. WHat have others used in this situation?
>>>
>>> Troy Harvey
>>> -
>>> Heliocentric
>>> 801-453-9434
>>> tahar...@heliocentric.org 
>>>
>>>
>> 
>>
>>
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>
> --
> Karl Schwingel
> NABCEP Certified Solar Thermal Installer
> NorthWind Renewable Energy LLC
>
> PO Box 723 Stevens Point, WI 54481
> k...@northwindre.com
> Cell: 715 209 0446
> Fax : 715 952 4501
>
>
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[RE-wrenches] AC Modules ready for primetime?

[Nik Ponzio]

I have a prospective customer requesting AC modules for a commercial job.
What is currently available?

Thanks in advance.
Nik
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[RE-wrenches] power washers

[Nik Ponzio]

Hey Gang,

What does the hivemind think about using a pressure washer on solar PV
modules? Any experience or insights would be appreciated.

Cheers,
Nik
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[RE-wrenches] roof rakes

[Nik Ponzio]

Does anyone have a particular roof rake to recommend for clearing snow off
low roofs and ground-mount arrays? Plastic, poly, squeegee So many
choices!


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Nicholas Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.15 (office)
802-658-3982 (fax)
802-318-4783 (cell)
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Re: [RE-wrenches] Wireless AC relay

[Nik Ponzio]

Please post it for the rest of us too!

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Williston, VT 05495
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802-658-3982 (fax)
802-318-4783 (cell)
http://www.BuildingEnergyVT.com


On Thu, Feb 21, 2013 at 6:37 AM, Chris Mason
wrote:

> Jay,
> I have an excellent option for this, I'll send you a connection to the
> manufacturer.
>
>
> On Wed, Feb 20, 2013 at 11:31 PM, jay peltz  wrote:
>
>> > Hi all
>>
>> I seem to remember some folks using a wireless remote to control a AC
>> relay
>> Any info on this would be appreciated
>>
>> Thanks in advance
>>
>> Jay
>>
>>
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[RE-wrenches] backup without batteries

[Nik Ponzio]

Forgive my senility. I recently read somewhere about development of grid-tie
inverters without batteries that offer emergency power via a single 120V
receptacle during grid outage (and sun.)
Anyone seen anything on these? The brands mentioned were SMA & Mitsubishi.

Thanks in advance.

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Nicholas Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.15 (office)
802-658-3982 (fax)
802-318-4783 (cell)
http://www.BuildingEnergyVT.com
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[RE-wrenches] UL warns of counterfeit UL Mark on photovoltaic panels

[Nik Ponzio]

http://www.ul.com/global/eng/pages/newsroom/publicnotices/detail/index.jsp?cpath=/global/eng/pages/newsroom/publicnotices/detail/data/ul-warns-of-counterfeit-ul-mark-on-photovoltaic_2013041507.xml

UL warns of counterfeit UL Mark on photovoltaic panels (Release 13PN-20)

*NORTHBROOK, IL - April 15, 2013 -* The following is a notification from UL
to Authorities Having Jurisdiction, distributors, installers and users that
the photovoltaic panels identified below bear counterfeit UL Marks for the
United States and Canada . The photovoltaic (solar) panels have not been
evaluated by UL to the appropriate Standards for Safety and it is unknown
if these photovoltaic panels comply with UL's safety requirements for the
United States or Canada.

*Name of Product:*

ASP - Advanced Solar Photonics (also known as Bluechip Energy)
Models AP-240PK, AP-245MK and ASP-390M

Note that ASP is a tradename for the parent company Bluechip Energy LLC

*Identification:   **On the product:*   The products bear a counterfeit UL
Mark and one of the markings shown below:







Note that the labels include additional electrical rating information, but
the values may differ from that shown in the photographs below.

**

*Photos of Product: *

*Photo of typical
installation*

* *

*Counterfeit nameplate from Model AP-240PK*



The nameplate label for Model AP-245MK is identical to the label above
except for Model number and electrical ratings.

**

*Counterfeit nameplate from Model ASP-390M*

* *

*Sold at:  *Known to be sold by SunWorks Solar and may be sold by other
distributors
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[RE-wrenches] SunEdison Monitoring Echosolar.com

[Nik Ponzio, Building Energy]

Wrenchers,

We sold a few SunEdison PV systems with EchoSolar monitoring platforms. The
monitoring worked for a while after the SunEdison collapse, but it's not
working anymore. (The domain is for sale.)

Does anyone have information about the current status of this company or
know of a 3rd party (4th party?) platform that can make use of the existing
network equipment?

Thanks for any help!

--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.115
http://www.BuildingEnergyVT.com


"Building Solutions for a Sustainable Future"
Heat Pumps from Building Energy
<https://www.youtube.com/watch?v=m5CVB6MMrV4>
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[RE-wrenches] rain guard

[Nik Ponzio, Building Energy]

We have a roofmount PV array that is very close to the run gutter. The
customer is concerned that the runoff during heavy rain will overshoot the
gutter. So I'm looking for a product that will mount at the lower edge of
the array and slow down the rain water. I looked that Alpine SnowGuards but
they all have a small gap between top of solar module and bottom of the
snow rail.

Any suggestions?


--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.115
http://www.BuildingEnergyVT.com
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[RE-wrenches] Squirrel Guards for Solarworld 2.0 Frames

[Nik Ponzio, Building Energy]

We need to add squirrel guards to an older system with Solarworld panels.
The 2.0 frames are not compatible with the snapNrack or spiffy solar guards
that we have used in the past. Any other products that we should consider?

Has anyone used the  SolaTrim with adhesive attachment? http://solatrim.com/


--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.115
http://www.BuildingEnergyVT.com
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Re: [RE-wrenches] old sanyos failing Iso test

[Nik Ponzio, Building Energy]

We have a few systems from same period that are showing delamination. I
just learned about a pending class action lawsuit:
https://www.classaction.org/news/sanyo-panasonic-hit-with-class-action-lawsuit-over-allegedly-defective-solar-panels



--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
office:   802-859-3384 ext.115
http://www.BuildingEnergyVT.com <http://www.buildingenergyvt.com/>


"Building Solutions for a Sustainable Future"




On Wed, May 30, 2018 at 7:14 PM Jerry Shafer 
wrote:

> Also remember workmanship is a way around performance issues
> Jerry
>
> On Wed, May 30, 2018, 11:35 AM Drake 
> wrote:
>
>> Aren't Sanyo modules warranted for 20 years? That is less, but still
>> substantial.
>>
>> Does anyone know if Sanyo modules are affected by Potential Induced
>> Degradation (PID) when connected to an ungrounded inverter?
>>
>> At 01:43 PM 5/30/2018, you wrote:
>>
>> To all that were asking about warranty on the old Sanyos, I was told that
>> Panasonic that took over the Sanyo product will warranty the product, that
>> being said, David was the contact I had and who is it that told me this,
>> please take note that the Sanyo warranty was less then most other
>> manufactures. david.lo...@us.panasonic.com
>>
>> On Tue, May 29, 2018 at 8:12 AM,  wrote:
>> Don’t forget about me please!
>> Â
>> :>)
>> Â
>> --Chris @ the sunny Oasis MT
>> Â
>> From: Jerry Shafer 
>> Sent: Tuesday, May 15, 2018 8:07 PM
>> To: ch...@oasismontana.com
>>
>> Subject: Re: [RE-wrenches] old sanyos failing Iso test
>>
>> Â
>> Yes, I do. Will get it in the next day or so, he is a rep but can make
>> the connection for you
>> Jerry
>> Â
>> On Tue, May 15, 2018, 7:10 AM  wrote:
>> Jerry:  Do you have Panasonic’s contact information for warranty
>> service?  I’m hoping I don’t need it but if I do….<
>> Â
>> Thanks!
>> Â
>> Chris Daum
>> Oasis Montana Inc.
>> 406-777-4309 or 4321
>> 406-777-4309 fax
>> www.oasismontana.com
>> Â
>> Â
>> Â
>> Â
>> From: RE-wrenches < re-wrenches-boun...@lists.re-wrenches.org> On Behalf
>> Of Chris Worcester
>> Sent: Monday, May 14, 2018 4:00 PM
>> To: 'RE-wrenches' < re-wrenches@lists.re-wrenches.org>
>> Subject: Re: [RE-wrenches] old sanyos failing Iso test
>> Â
>> We did a number of Sanyo HIP195, 200, and 210 installs, so far we’ve
>> had a few failures showing up as backsheet bubbles. Some of the bubbles
>> were so big that the wafer fell away from the glass! Here’s a couple
>> photos. Didn’t think Panasonic would take care of this, after an
>> exhausting warranty procedure that drew on for months on one system… their
>> Japanese enggineering dept said no to our request for replacements on that
>> one eventually. Â Â
>> Â
>> Chris Worcester
>> Solar Wind Works
>> NABCEP Certified PV Installer
>> Office 530-582-4503
>> Cell 530-448-9692
>> Fax 530-582-4603
>> www.solarwindworks.com
>> ch...@solarwindworks.com
>> Â
>> From: RE-wrenches [ mailto:re-wrenches-boun...@lists.re-wrenches.org
>> ] On Behalf Of Ron Young
>> Sent: Monday, May 14, 2018 12:49 AM
>> To: RE-wrenches
>> Subject: Re: [RE-wrenches] old sanyos failing Iso test
>> Â
>> I have several dozen older Sanyo’s installed from that period. Are
>> there any obvious physical degradations to look for or specific tests that
>> can show issues? I don’t have a megger but have two systems installed in
>> grid tied systems and a couple off-grid. No performance complaints as yet.
>> Â
>> Ron
>> Â
>> On May 13, 2018, at 11:51 AM, Jerry Shafer 
>> wrote:
>> Â
>> Kirk
>> I dont know if you know this but Panisonic will warranty the old Sanyos,
>> just got this from a rep last week.the issue you are having may be due to
>> the failing of the back sheet under the frame edge.
>> Jerry
>> Â
>> On Sun, May 13, 2018, 6:04 AM Kirk Herander  wrote:
>> I now have two systems with older Sanyos(Panasonic), circa 2004, which
>> consistently fail the inverter (Solaredge) startup Insolation test in wet
>> weather. Usually 200 – 550 kohms, just below tthe inverters 600k limit.
>> Confirmed by my meggering. I discovered this after convincing the owners to
>> upgrade the inverters from old SMA’s which don’t test for it. Anyone
>> else see this issue in older panels, in particular Sanyos?
>> Â
>> Kirk Herander
>> Owner|Principal, VT Solar, LLC
&g

[RE-wrenches] 'Tis the Season for Warranty Claims

[Nik Ponzio, Building Energy]

Just learned for a diode failure in a SolarWorld SW50 (circa 2011.) Anybody
else seeing this? Any luck with warranty claims?



--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
office:   802-859-3384 ext.115
http://www.BuildingEnergyVT.com <http://www.buildingenergyvt.com/>


"Building Solutions for a Sustainable Future"
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[RE-wrenches] copper roof

[Nik Ponzio, Building Energy]

Dear Wrenches,

We installed a PV system on a copper roof several years ago. We used brass
S5!-U clamps on standing seam and aluminum racking. We are now noticing
some discoloration at the drip-line below the modules. See photos here:
https://picasaweb.google.com/109634809794570027207/CopperRoof?authuser=0&authkey=Gv1sRgCMv8n6rCl8e8Sw&feat=directlink

There is also a fair amount of discoloration from bird droppings but that
doesn't seem to be the cause of the spots under the modules.

Does any know what's happening here, whether to be concerned about
corrosion, and how to prevent this in the future?



--
Nicholas Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext.15 (office)
802-318-4783 (cell)
http://www.BuildingEnergyVT.com
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[RE-wrenches] remember the pirate solar inverter?

[Nik Ponzio, Building Energy]

Question for the old timers out there: What was very early micro inverter
called that was designed to plug directly into the wall? It had DC input
for single solar panel and the output was a live 120V male plug.

On a related note, is there anything like the SMA Secure Power Supply
inverters that will run off just 1 or 2 panels?

Thanks for any insight..
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Re: [RE-wrenches] remember the pirate solar inverter?

[Nik Ponzio, Building Energy]

Yes!  OK4U! Thanks, Roy!
On Sep 17, 2015 7:03 PM, "Roy Butler"  wrote:

> Was that the OK4U?
>
> Roy Butler
> NABCEP Certified Solar PV Installer®
> NYSERDA eligible PV & wind installer
> Four Winds Renewable Energy, LLC
> 8902 Route 46, Arkport, NY 14807607-324-9747  www.four-winds-energy.com
>
> Although no trees were killed in the sending of this message,
> a large number of electrons were terribly inconvenienced.
>
>
>
> On 9/17/2015 6:31 PM, Nik Ponzio, Building Energy wrote:
>
> Question for the old timers out there: What was very early micro inverter
> called that was designed to plug directly into the wall? It had DC input
> for single solar panel and the output was a live 120V male plug.
>
> On a related note, is there anything like the SMA Secure Power Supply
> inverters that will run off just 1 or 2 panels?
>
> Thanks for any insight..
>
>
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[RE-wrenches] Ballasted Roof Racking?

[Nik Ponzio, Building Energy]

Wrenchers,

Ironridge just pulled plug on their BRM. What are people specifying for
small (<15kW) ballasted roof mount racking for PV?

Thanks in advance.
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[RE-wrenches] Looking for wrench in Teaneck NJ

[Nik Ponzio, Building Energy]

A have a family friend interested in going solar in 2017. Please contact me
offlist if you serve northern NJ or have a recommendation.

Thanks

--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
802-859-3384 ext. 115
http://www.buildingenergyvt.com
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[RE-wrenches] grid-tie solar behind a generator

[Nik Ponzio, Building Energy]

We are installing 25kW of PV on a service with an existing backup generator
(Eaton 30KW) and auto transfer switch. Because of the remote location of
the generator and transfer switch, we can not easily connect on the
grid-side of the transfer switch as we usually do (without cutting a very
long trench.) So we're looking for a way to lock out the solar during
generator use. And then, ideally, reconnect the solar automatically when
the grid is restored.

Is there an off-the-shelf product available at this point to accomplish
this?

I see a thread on here
<https://mailtrack.io/trace/link/7643522e54e5bd30057d2e139c7b93d1c488b655?url=https%3A%2F%2Fwww.mail-archive.com%2Fre-wrenches%40lists.re-wrenches.org%2Fmsg23906.html&userId=6273276&signature=c4db635fbd2d1225>
from a couple years ago that recommended the Generac SMM for this type of
scenario. Any current thoughts on this approach?

Any suggestions would be appreciated.


--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
direct: 802-318-7003
npon...@buildingenergyus.com
http://www.BuildingEnergyVT.com
<https://mailtrack.io/trace/link/058e994a3bba9674653a69dd2a6976e0914d2761?url=http%3A%2F%2Fwww.BuildingEnergyVT.com&userId=6273276&signature=8b5247886585b42b>



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[RE-wrenches] SHW?

[Nik Ponzio, Building Energy]

Anyone on here still doing solar hot water? We have an orphaned system in
Rutland County, Vermont that needs service. Referrals appreciated.


--
Nik Ponzio
Building Energy
http://www.BuildingEnergyVT.com
<https://mailtrack.io/trace/link/2d3120228a908ac88d62dc9b12e67aba68df018d?url=http%3A%2F%2Fwww.BuildingEnergyVT.com&userId=6273276&signature=9a942b62c334cf12>
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[RE-wrenches] in search of 31" wide solar panel

[Nik Ponzio, Building Energy]

We need a single panel to replace a damaged unit in a very visible
location. The original panel is a Panasonic HIT225 (circa 2013)
with dimensions 62.2 x 31.4 x 1.8 in. The critical dimension is the width.
I have about 4 inches to work with on the mounting rails, but can't go all
the way up to a 40" wide panel. Ideally black-on-white, but this is less
critical than dimensions.

Any suggestions? Please respond off-list.


--
Nik Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
direct: 802-318-7003
npon...@buildingenergyus.com
http://www.BuildingEnergyVT.com
<https://mailtrack.io/trace/link/5b0107ce71d1324a1b84cc0b24c770958faf2795?url=http%3A%2F%2Fwww.BuildingEnergyVT.com&userId=6273276&signature=6bd490087a6f835d>



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[RE-wrenches] Installers in Nazareth, PA?

[Nik Ponzio, Building Energy via RE-wrenches]

My cousin lives in Nazareth, PA and is ready to go solar. Any reputable
installers serve that area?

Thanks in advance,
Nik




--
Nicholas Ponzio
Building Energy
1570 South Brownell Road
Williston, VT 05495
npon...@buildingenergyus.com
http://www.BuildingEnergyVT.com


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