layout-for-fire-code-compliance?v=disable_pagination
<http://solarprofessional.com/articles/design-installation/pitched-roof-array-layout-for-fire-code-compliance?v=disable_pagination>
If you’d like a PDF copy of the article, just send me a direct message.
David Brearley
Senior Technical Edit
there are established standards that
apply to flashing and waterproofing according to roof type.
David Brearley
Senior Technical Editor, SolarPro
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Direct: 541.261.6545
Follow us on Twitter: @SolarPro
Check out
or expertise you’d like to share, please contact me
directly via email:
david.brear...@solarprofessional.com
mailto:david.brear...@solarprofessional.com
Thanks!
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear
August,
Here's some additional info:
http://solarprofessional.com/articles/design-installation/fire-classification-for-roof-mounted-pv-systems?v=disable_pagination
Best regards,
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear
a central inverter, it looks like you'll have to spend 2X as much money on your
source circuit combiners as you are now in order to meet these code
requirements.
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Springs, Ohio—on a coffee nerd
forum. I forget how the PV system came up, but the guy clearly has good taste
in espresso equipment and PV installers. Keep up the good work!
Best regards,
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
Office: 858-565-2284
Fax: 858-565-2903
Email: j...@toolup.com
Best regards,
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Direct: 541.261.6545
Check out this AMAZING music video
There are several SolarABCs reports that speak to this. For example:
http://bit.ly/1bD8wM7
The complete list of reports is found here:
http://www.solarabcs.org/current-issues/fire_class_rating.html
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation
://www.solarabcs.org/current-issues/fire_class_rating.html
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Direct: 541.261.6545
On Feb 6, 2014, at 12:20 PM, re-wrenches-requ...@lists.re-wrenches.org wrote:
From
Wrenches,
Matt Paiss is wanted to chime in here. He's a member of the Code-Making Panel
No. 4 Firefighter Safety Task Group, as well as SEIA's PV Industry Forum.
Since he can't post to the list, I am sharing his comments with the group:
Drake,
After reading your initial comments, I
that coincide with Intersolar. Those
are very informative sessions. I think the sessions are even archived online at
solarancs.org.
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Direct: 541.261.6545
On Jan
—for the exact reasons that
you touch on below.
Not sure if this link has been published on the Wrenches list or not, but it
provides some background on the topic:
http://www.youtube.com/watch?v=sUXShMZJorQ
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation
will chime in shortly and provide more clarity.
Best regards,
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation Professional
david.brear...@solarprofessional.com
Direct: 541.261.6545
___
List sponsored by Home Power
With regards to the second part of your question, Trina has a glass-on-glass PV
module:
http://www.trinasolar.com/us/product/PDG5.html
I suspect that the glass-on-glass module from SolarWorld is Class A fire rated
as well.
___
List sponsored by
compared to the
alternative.
Best regards,
David Brearley
Senior Technical Editor, SolarPro magazine
On Nov 11, 2013, at 1:02 PM, re-wrenches-requ...@lists.re-wrenches.org wrote:
From: William Miller will...@millersolar.com
Subject: [RE-wrenches] House fire news
Date: November 11, 2013 12:09
. And there are new labeling
requirements on the way.
If you're in the market for a new labeling solution, you might want to sign up
for one of these webinars. There are 2 or 3 more scheduled in the near future.
David Brearley
Senior Technical Editor, SolarPro magazine
NABCEP Certified PV Installation
at
intervals not to exceed 30cm (12 in.) and secured at intervals not to exceed
1.4m (4.5’).
I hope this helps. It is a very big deal.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Sent
+1 for Maui Software. It is really helpful for finding the
array-to-battery-to-generator capacity sweet spot. You can also use it to model
things like the impact of various generator start/stop triggers. If you have
monthly kWh meter readings for the site, you can build a daily average load
SMA is hosting a webinar on this product line on April 2nd:
http://www.sma-america.com/en_US/smasolaracademy/seminar-calendar/seminar-registration/seminars/sunny_boy_tl_us_series_eps_overview_live_webinar.html
On Mar 25, 2013, at 11:11 AM, Bob-O Schultze wrote:
Hiya Nick,
SMA is bringing out
Uses permitted. 392.10(B)(1) requires that single conductor cable in cable tray
be size 1/0 or larger.
Here's the deal, though. NEC 2014 will add Service Entrance Cable: Types SE
and USE to Table 392.10(A). It is not in that table now, which is why
inspectors turn to 392.10(B). That means that
Ouch. I promise I'm not advocating for anything like that. What I may be
missing is the Code reference that says no cable tray on roofs or similar.
There is so much room for improvement in wire management practices, that being
able to use cable tray seems like a step forward. I understand some
1.4m (4.5’).
I hope this helps. It is a very big deal.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Sent: Monday, March 25, 2013 6:01 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cable
Of David Brearley
Sent: Friday, March 22, 2013 8:43 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] P1 micro performance
Thanks for the clarification.
FWIW: Flat topping is exactly what occurs. Inverter limiting clips the
inverter output power curve (not the voltage or current wave forms
Thanks for sharing the screen capture, Marco.
Interesting issues to think about here. This is actually prime clipping season
in many places (not sure about Hawaii) due to the cool weather. While there are
more sun-hours in the summer, the cell temperatures are often high enough that
you won't
FWIW: I recently saw something similar at an installation in Central Texas that
uses a similar product. The cracking in the weatherproof coating was highly
localized, affecting ±8 out of ±48 modules. The affected modules differed from
the others only in terms of the amount of reflected light
It is confusing that they refer to this as a light soaking effect. When we
worked on this thin film article in SolarPro magazine a couple years ago, a
researcher at NREL referred to this specific phenomenon as a dark soaking
effect (see discussion under Performance Transients):
Hi Carl,
Check out the sidebar by Stephen Kane in this article for info on a couple
squirrel guard product suppliers:
http://solarprofessional.com/article/?file=SP6_2_pg30_Jacoby
I do think that the same system can serve both purposes. Once the screen is in
place it should be self-evident
I assume the device just operates the module away its MPP. That would reduce
its power output.
On Jan 29, 2013, at 8:48 AM, Larry Crutcher, Starlight Solar Power Systems
wrote:
Nick,
You said the microinverter only draws enough current... Could you explain
how this works? I primarily
Let us know what the megohmmeter says. FWIW: There is some precedent for
premature product failure in a roof-integrated product manufactured by Energy
Conversion Devices (Uni-Solar):
http://www.utsandiego.com/news/2012/sep/14/tp-flawed-solar-panels-removed-at-schools/?printpage=all
On Nov 27,
Someone earlier suggested contacting Solmetric in Sebastapol:
http://www.solmetric.com/contact-us.html
Their PVA I-V curve tracer is a great troubleshooting tool, and they also carry
a Megger MIT 430 insulation tester:
http://www.solmetric.com/megger-mit430.html
Maybe they have a kit (PVA +
+1. John Wiles is awesome—and he would never mistake PV source or array
circuits for a service. Not only are PV power circuits not a service, but PV
systems (inverter output circuits) are not a service. The NEC defines all of
this as power production equipment (705.2).
By definition a service
FWIW: In the 2011 Code, Section 690.31(D) is changed to include the following:
Where dc photovoltaic source or output circuits…are run inside a building or
restructure, they shall be contained in metal raceways,Type MC metal-clad cable
that complies with 250.118(10), or metal enclosures…
On
Sorry, per the OP this appears in 690.31(E)...
On Nov 3, 2012, at 11:19 AM, David Brearley wrote:
FWIW: In the 2011 Code, Section 690.31(D) is changed to include the following:
Where dc photovoltaic source or output circuits…are run inside a building or
restructure, they shall be contained
wrenches here actually had an inspector required dc AFCI? Also, is the
dc AFCI test standard actually finalized and adopted at this point or are
companies testing to a draft standard?
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer ™
david.brear
If this is simply a Code consideration, then the NEC does not require a
visible/lockable disconnect. You can refer to this SolarABCs document for a
thorough discussion of the subject:
http://www.solarabcs.org/about/publications/reports/ued/pdfs/ABCS-05_studyreport.pdf
On Oct 2, 2012, at 5:21
Jason,
You might also check out SunPower's ac modules:
http://us.sunpowercorp.com/homes/products-services/solar-panels/AC-home-solar-panel/
On Sep 26, 2012, at 5:49 PM, Sequoya Cross wrote:
I haven’t seen a full compatibility list on the new SMA-240US. At this point
technical downloads
Steve,
Have you checked out SolarNexus?
http://www.solarnexus.com/
As I understand it, their goal is to provide all of the functionality you
describe in a single platform.
Best regards,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer ™
david.brear
Here's a link:
http://us.sunpowercorp.com/commercial/products-services/rooftop-solar-systems/T5/
On Aug 31, 2012, at 11:13 PM, benn kilburn wrote:
Ray,
Are those the BIPV ones?
Can you provide a model or a link?
Thanks,
Benn
DayStar Renewable Energy Inc.
www.daystarsolar.ca * Ph:
I'm assuming it's a balanced 3-phase interconnection, which fits with the
reported phase current of 42 A:
(3 x 5000 W) / 208 V / 1.73 = 41.7 A
Or more simply:
24 A per inverter x 1.73 = 41.5 A
However, no one reviewing a single-line should have to guess about the service
type
On Aug 30,
Some of the aluminum lugs are indoor-rated. They have a set screw will rust in
an outdoor environment. That's one of the classic John Wiles slides. I'd just
watch out for that
On Aug 27, 2012, at 3:04 PM, Jay Peltz wrote:
Hi Brian
Isn't another way to go:
Use the AL lugs and AL
good to
double-check, of course.
Jason Szumlanski
Fafco Solar
On Mon, Aug 27, 2012 at 4:11 PM, David Brearley
david.brear...@solarprofessional.com wrote:
Some of the aluminum lugs are indoor-rated. They have a set screw will rust
in an outdoor environment. That's one of the classic
Off the top of my head...Power-One?
You can download an Excel file with comprehensive string inverter specs here:
http://solarprofessional.com/webexclusive/
On Aug 27, 2012, at 4:06 PM, William Miller wrote:
Friends:
We have a client that wants to divest of 8 Fronius LG-4500 LV
=versionlessparent_id=1073988940sequence=1
Regards,
Gary Willett, PE
On 8/27/2012 3:20 PM, David Brearley wrote:
Yes, sorry. I wasn't speaking of this lug...I like the redesign. Looks
quicker and easier and robust.
On Aug 27, 2012, at 3:17 PM, Jason Szumlanski wrote:
Yeah, but this one
to be made
up, Todd, that question is addressed to List at large.)
Happy Independence Day,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer ™
david.brear...@solarprofessional.com
Direct: 541.261.6545
On Jul 3, 2012, at 10:37 PM, toddc...@finestplanet.com wrote
In some cases, you can install blocking to get up on the ridge consistently.
One alternative to hangar bolts is to use corrugated mounting bridges from DPW
Solar or something similar from another company.
Sorry I can't link to the PDF. Google: corrugated mounting bridges
Since exposed-fastener
Presumably most solar contractors benefit from increased sales due to the
availability of a 30% federal tax credit. Arguably, that's not the same thing
as receiving public funds, but the net effect is the same. My point is simply
that as an industry we are dependent upon public support and a
, fly-by-night,
subsidy chasers one easy way may be to eliminate the subsidy.
Bill Loesch
Solar 1 - Saint Louis Solar
On 04-Jul-12 10:07 AM, David Brearley wrote:
Todd,
The issue isn't whether your approach works, but whether it is defensible in
the event that something leaks. Most solar
construction negligence claim.
Drive straight,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer ™
david.brear...@solarprofessional.com
Direct: 541.261.6545
On Jul 3, 2012, at 4:11 PM, Garrison Riegel wrote:
The EcoFasten GF1 flashing is easy to install
intentioned colleagues.
That¹s my experience and my 2 cents,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
On 6/2/12 9:34 AM, William Miller will...@millersolar.com wrote:
Colleagues:
I have been debating in my own mind the merits and demerits
:
http://solarprofessional.com/article/?file=SP4_3_pg14_QA_2search= (Bill
Brooks article on Fuse Servicing disconnect requirements)
http://solarprofessional.com/article/?file=SP4_3_pg64_Hrensearch= (Changes
to Code in 2011; See content under ³690.6, Fuses² subheading)
David Brearley, Senior
] On Behalf Of David Brearley
Sent: Thursday, March 29, 2012 8:25 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] WOW Something Gone Very Wrong
Perfect example of why it¹s a good idea to start designing and deploying
systems now that meet the fuse servicing requirements found in NEC 2011even
bios:
www.members.re-wrenches.org
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
Fax: 541.512.0343
Visit our Web site at solarprofessional.com
(Sample copy available for download
are VERY small, as seem in the Isc values.)
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 11/30/11 12:18 AM, Ray Walters r...@solarray.com wrote:
I pulled the voltage temp coefficient off
about the distinction between the two possible
interpretations.
David Brearley, Senior Technical Editor
SolarPro magazine
On 9/29/11 1:50 PM, Mark Frye ma...@berkeleysolar.com wrote:
OK, this subject has come up before and this is a gray area in the Code. What
is the definition of the output
above.
Best,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 7/19/11 2:19 PM, Hans Frederickson h...@fredelectric.com wrote:
Kent,
I'm not a geezer yet, but thanks to my dad I do have
book is an
incomplete printing or perhaps John Wiles was referring to a 1987 proposal
that didn't make it into the code until the 1990 NEC.
Regards,
-Hans
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Eric,
Marvin Hamon, a PE in CA, wrote an article for SolarPro magazine on this
topic that may be of assistance:
http://solarprofessional.com/article/?file=SP3_1_pg66_Hamonsearch=
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear
type
diagrams that may be helpful:
http://solarprofessional.com/article/?file=SP1_1_pg32_Berdner
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 4/7/11 11:06 PM, Aladdin Solar cpick
these.
Hope that¹s cleared than mud,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 3/30/11 11:12 AM, Kent Osterberg k...@coveoregon.com wrote:
Jason,
Now you are opening up a can of worms
Wiles that may help.
http://www.fafcosolar.com/download/409/690%2064%28B%29%282%29TECH-1.pdf
It¹s still my contention that the conductors need to be sized for 150A in this
example, unless an exception is made by the AHJ. If David Brearley¹s post
about Wiles¹ clarification is accurate, them
for the rant,
David Brearley
On 2/8/11 2:04 PM, hol...@sbcglobal.net hol...@sbcglobal.net wrote:
My electrician was out of pocket, so I hired a master electrician with NABCEP
citification from a highly reputable company to complete a battery based
system for me with the expectation that he
-Archive:
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David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear
:
www.members.re-wrenches.org
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
http://david.brear...@solarprofessional.com
Direct: 541.261.6545
Fax: 541.512.0343
Visit our Web site at solarprofessional.com
shingles installed on a north facing roof without
enough modules in series to actually reach the inverter start voltage. At
least it didn¹t blow away or fall off the roof!)
David Brearley, Senior Technical Editor
SolarPro magazine
On 1/28/11 11:57 AM, Keith Cronin electrich...@yahoo.com wrote
be used for even more conservative voltage or ampacity calculations.²
I realize you are talking about a different set of calculations, but the
rationale for which data to use may still apply.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear
for Photovoltaic Systems.
Looking forward to getting my hands on a copy,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 1/13/11 10:35 AM, August Goers aug...@luminalt.com wrote:
Hi All
:
http://solarprofessional.com/article/?file=SP3_1_pg66_Hamonsearch=
Best regards,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
On 12/7/10 8:47 AM, Glenn Burt glenn.b...@glbcc.com wrote:
Al,
SMA has a good whitepaper on their site covering
Drake,
Chris Freitas wrote an article on this topic in SP1.1, ³Form 12S Metering
for Grid-Tied Systems w/ Battery Backup.² Here¹s a link to the article and a
wiring diagram:
http://solarprofessional.com/article/?file=SP1_1_pg16_QandA_3search=
David Brearley, Senior Technical Editor
SolarPro
On Aug 1, 2010, at 8:24 AM, David Brearley wrote:
Kelly,
When I came across language like this in an RFP, my assumption was that we
needed to work with a specialty lightning protection subcontractor, a firm
listed by UL. I would call them up, give them a project description
Peter,
You can address the inspector's first complaint by pointing to the new
language (NEC 2008) in 690.64(B)(2):
In systems with panelboards connected in series, the rating of the first
overcurrent protection device directly connected to the output of a
utility-interactive inverter(s) shall
Mick,
THWN-2 is 90°C rated per Table 310.16. This is key for conductors in conduit
on a roof. On a roof in full sun ambient temperatures are such that a 75°C
rated conductor will have a severely diminished allowable ampacity, if any
allowable ampacity.
Jollily,
David
On 7/23/10 11:52 AM, Mick
local
supplier can¹t confirm this cross-listing for you, I¹d try tracing back to
ask their supplier or the manufacturer.
David Brearley, Senior Technical Editor
SolarPro magazine
On 7/23/10 12:52 AM, Marco Mangelsdorf ma...@pvthawaii.com wrote:
Finding that wire in these here parts is pretty much
=SP3_2_pg92_Projects_1search=
David Brearley, Senior Technical Editor
SolarPro magazine
On 6/11/10 2:50 PM, Nick Soleil nicksoleilso...@yahoo.com wrote:
Did you notice that in my calculation I divided the total amperage by 2 to get
the average ampacity across the string. This seems to be the best way to deal
clients.
Motech has been a supplier of solar cells to GE Energy for the past four
years.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
On 6/8/10 10:13 AM, Carl Hansen solar...@cybermesa.com wrote:
I have a warrantee issue with an Astropower 120
everyone in the
long run.
Best,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
On 6/3/10 8:57 AM, Jason Szumlanski ja...@fafcosolar.com wrote:
Hi Wrenches,
Has anyone dealt with a jurisdiction that requires FSEC or similar
system approval
question below can’t be answered using PVWatts, it can be
answered using the Solar Advisor Model (SAM), which was developed by NREL
and Sandia w/ DOE funding. SAM is available for free download here:
www.nrel.gov/analysis/sam/
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified
SEIA has on offician insurance broker:
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 4/20/10 4:35 PM, Marco Mangelsdorf ma...@pvthawaii.com wrote:
I¹m in search for an insurance co
SEIA has an official insurance broker:
www.kessleradvisors.com/contentnt.aspx?id=212
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
On 4/20/10 4:35 PM, Marco Mangelsdorf ma...@pvthawaii.com
/options.cgi/re-wrenches-re-wrenches.org
List-Archive:
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
David Brearley, Senior Technical Editor
SolarPro
or the last couple of months?
On Wed, Mar 3, 2010 at 10:52 AM, David Brearley
david.brear...@solarprofessional.com wrote:
Look for a super comprehensive article on the topic of production modeling in
the Apr/May issue of SolarPro (SP3.3) by Tarn Yates and Bradley Hibberd of
Borrego
Jay,
You might want to consider a multi-purpose tool:
http://solarprofessional.com/article/?file=SP2_3_pg20_TheWire_5search=
Best, David
On 2/13/10 4:57 PM, jay peltz j...@asis.com wrote:
I'm in the market for a Tyco connector tool .
(I already have the MC tool)
Any recommendations
Is it a Form 12-S meter? If not, that¹s the reason its not working. Here¹s
an article you can refer to:
http://solarprofessional.com/article/?file=SP1_1_pg16_QandA_3search=
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear
the Square D product was. This is the insanity that needs to stop.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Sent: Monday, January 11, 2010 11:39 AM
To: RE-wrenches
Subject: Re: [RE-wrenches
lab such as UL.
Kent Osterberg
Blue Mountain Solar, Inc.
David Brearley wrote:
Re: [RE-wrenches] Square D DC disconnects Thanks, Bill.
Glad to hear you think the HU series is still a good option.
When I was making the rounds at SPI, I stopped by the Eaton booth and got the
sense
basic rule similar to the rule for politicianshow do you know
if a marketing guy is lying?== his lips are moving.
Bill.
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of David Brearley
Sent: Monday, January 11, 2010 3:41 PM
Great format for an integrator and its staff. Thanks for sharing, Mike.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
On 1/7/10 1:26 PM, Michael Kelly m...@solarflair.com wrote:
Drake,
I did an analysis
Marco,
They are all single-phase, with the exception of the IG Plus 11.4-3 and
12.0-3, which are 3-phase units.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
Fax: 541.512.0343
Visit our Web
contact me offline.
Best regards,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Direct: 541.261.6545
Fax: 541.512.0343
Visit our Web site at solarprofessional.com
(Sample copy available for download
for temp derating, or are we still going
to be using the manufacturers % loss's?
thanks,
jay
peltz power
On Sep 30, 2009, at 7:59 AM, David Brearley wrote:
Jay,
According to Pat Saxon at the California Energy Commission, the list of
approved test facilities currently include: CSA
¹ for depreciation must be
reduced by half the amount of the investment credit or cash grant.²
Best regards,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
On 9/30/09 2:11 PM, Dana Brandt d...@ecotechenergy.com wrote:
Thanks, Randy. Do you have
That¹s what came to my mind, as well, based on the description.
David Brearley, Senior Technical Editor
SolarPro magazine
On 9/9/09 7:14 PM, North Texas Renewable Energy Inc nt...@earthlink.net
wrote:
Carl
check out the Unirac Fast Foot.
http://www.unirac.com/pdf/fastfoot_install.pdf
No.
The Recovery Act specifies that Buy America provisions are applicable to
³Division A² programs of the ARRA. The cash grant, according to a resource
made available to SEIA members, is a ³Division B² program.
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV
modules are part of a DC circuit and
power factor applies to AC circuits. It¹s not at all uncommon for
interconnection documents to request information that is not applicable to
PV systems.
Best,
David Brearley, Senior Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear
-wrenches.org/pipermail/re-wrenches-re-wrenches.org
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David Brearley, Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
david.brear...@solarprofessional.com
Allan, there are 4 modules pictured in the ³before² photo, not 8. The after
photo show the ³good² modules, the ones that did not burn. This suggests
there are 4 module each on two separate roof faces. Please have another look
at the before picture and count the frames. In the before picture each
-wrenches.org/pipermail/re-wrenches-re-wrenches.org
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David Brearley, Technical Editor
SolarPro magazine
NABCEP Certified PV Installer
[EMAIL PROTECTED]
Direct: 541.261.6545
It has an option for a factory-installed 200A main breaker.
On 12/4/08 12:31 PM, Christopher Freitas [EMAIL PROTECTED]
wrote:
How does the 225 amp rating make it ideal for 60 amp breakers? 20% of 225
amps is 45 amps and even with ³rounding up² it only gets you to 50 amps.
Christopher
Kirpal,
Back in 2005 when the rebates were first on the horizon, Austin Energy would
voluntarilyat the request of customershold off placing their PV kWh meter
until after January 1, 2006. The intent was to put off commissioning systems
before the rebate was available.
Best,
David
On 12/3/08
and placing meters are just part of the job, not commissioning.
From: David Brearley [EMAIL PROTECTED]
To: RE-wrenches re-wrenches@lists.re-wrenches.org
Sent: Wednesday, December 3, 2008 11:19:11 AM
Subject: Re: [RE-wrenches] system commissioning time frames
Kirpal,
Back in 2005 when
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