[RE-wrenches] Darn Pesky Electrons

[Holt Kelly]

This is a new onenot critical issue, just very curious.

7.92kW Enphase IQ6 system on garage roof. There seems to be some RFI(?) that is 
preventing the garage door remote from operating unless it is right at the 
door. Works ok at night and in cloudy weather, but in full sun it isn't 
operating as usual before system installed.

Small inconvenience but a curious situation.

Any thoughts?

Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco, TX 76712
www.holteksolar.com
254-751-9111

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Re: [RE-wrenches] Hidden freight damage

[Holt Kelly]

When modules are rec'd, sign all freight bills "with exception" or "subject
to inspection." Take LOTS of pictures if there is any hidden damage as it
sits on the pallet. If you see any pallets with ANY holes, straps broken, or
shrink wrap loose, it's best to take a picture before it gets off the truck.
NOTE: if it's got blue shrink wrap on it, it's been repacked - consider
refusing the pallet or inspect it thoroughly. 

If you do have problems, contact the people at the local terminal - they are
usually willing to help a bit more than dealing with the corporate folks.

Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco, TX 76712
www.holteksolar.com
254-751-9111

-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Luke Christy
Sent: Monday, November 04, 2013 10:47 AM
To: re-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] Hidden freight damage

Wrenches,

We have been in business for about 8 years, and up until now, the shipping
gods have smiled upon me, but apparently my luck has run out, as I've had 2
costly shipping nightmares within a month,  and I'm just wondering what
other Wrenches have done to protect themselves from the liability involved
in trusting expensive shipments to the freight carriers.  Here's my
situation:

I recently had a pallet of modules shipped, and it arrived with multiple
broken modules, due apparently to careless handling,and having had something
heavy set on top of the pallet.  I have my freight shipments sent to a
neighboring business which is kind enough to receive them for me, since they
have many full time staff who are always available during business hours to
fork shipments off a truck.  In this case the forklift driver did not notice
the damage (it was not immediately evident), and the delivery was signed
for.  However, upon picking up the pallet an hour later, I  realized that
the shipment was damaged, called the freight company immediately to notify
them of the damage, and subsequently filed a detailed written claim. 

I just got notice that my claim was denied by the carrier, evidently without
considering any of the photos or the written explanation I submitted with
the claim. They simply cited that the shipment had been signed for without
noting damage.  
It is clear to me that the carrier was responsible for the damage, yet
apparently because the damage was hidden and the BOL was signed, they can
leave me holding the bag for a significant amount of money. 

This particular incident could have been worse, but it is the first time
I've had it happen and it certainly makes me worried about future
deliveries. It suddenly seems like an unacceptable liability to have others
sign for my deliveries without a thorough inspection. 

I asked my distributor whether the shipments have any insurance on them, and
the person I spoke with didn't know the answer. So my $50 Ebay shipment is
insured, but my $50,000 worth of equipment isn't? My insurance agent says
that I can make a claim on my commercial insurance, but advised against it
in this case, since the loss was only around $1K, and is guaranteed to raise
my future premiums.

I know that things get damaged or lost all the time in shipment, and I'm
wondering how other businesses handle it.  Businesses that do larger volume
must have damaged freight all the time.  Is it just impossible to get
freight companies to take responsibility for damage that is not immediately
evident, since they are acting as judge on their own behalf?  Do you just
refuse to sign the bill of lading until you've examined all the contents of
the packages (this is a logistical nightmare in most cases)?  Do you just
chalk it up to the cost of doing business and/or make claims to your
commercial insurance? 

Would appreciate your thoughts / experiences with this issue.  
Thanks. - Luke

Luke Christy
  
NABCEP Certified PV Installation ProfessionalT: Certification #031409-25 
NABCEP Certified Solar Heating InstallerT: Certification #ST032611-03   
CoSEIA Certified PV Installer 

Solar Gain Services, LLC
PO Box 531
Monte Vista, CO. 81144
sgsrenewab...@gmail.com
719.588.3044
www.sgsrenewables.com

   







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Li

Re: [RE-wrenches] Enphase commercial

[Holt Kelly]

Be sure to read Enphase's tech sheet on center tap of branch circuits.  

 

Holt E. Kelly

Holtek Fireplace & Solar Products

500 Jewell Dr.

Waco, TX 76712

  www.holteksolar.com

254-751-9111

 

From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Nathan
Stumpff
Sent: Thursday, October 03, 2013 2:28 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Enphase commercial

 

Hi Eric,

 

It is 25 inverters on a 20A circuit, but only on 208 three phase. Each micro
connects to the cable in an alternating way (L1/L2, then L2/L3, then L3/L1,
etc.) so with 25 micros there are either 8 or 9 micros on each combination.

 

9 x 1.0 A x 1.732 (square root of 3) x 1.25 = 19.48 A = 20 A breaker

 

Cheers,

-Nathan

 

--

Nathan J. Stumpff

NABCEP Certified PV Installation Professional #091209-175

NABCEP Certified Solar Heating Installer #032412-14

Project Manager | Arctic Sun, LLC

nat...@arcticsun-llc.com    | (907)
457-1297

www.reina-llc.com   | www.arcticsun-llc.com
 

  

 

From: re-wrenches-boun...@lists.re-wrenches.org

[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of SunHarvest
Sent: Thursday, October 03, 2013 10:52 AM
To: RE-wrenches
Subject: [RE-wrenches] Enphase commercial

 

Hey Wrenches & Nick Soleil (with whom I worked at APS for a time I
believe...),

 

I'm not familiar with Enphase commercial applications and am currently
working through a commercial design. Enphase, on their M215 datasheets claim
up to 25 micros per branch, at 1.0A each, with each branch terminating at a
20A breaker. By my calculations, 25 micros at 1.0A each (25A*1.25=31.25A)
need to terminate at a 40A breaker. Anyone know what I'm missing or know how
the 20A breaker design gets past the AHJ?

 

Eric Stikes
SunHarvest

(530) 798-3738

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