converter are appreciated.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Dovetail Solar and Wind
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Change
,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Lead Systems Designer for:
<http://www.dovetailsolar.com/> www.dovetailsolar.com
Ph: 740-274-0139
We’ve completed nearly 400 renewable energy projects! Check out a few in our
photo gallery:
location (expected cold temps while possibly
at a lower SOC). The client really did not want to do the standard flooded
battery maintenance.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Lead Systems Designer for:
www.dovetailsolar.com
Ph: 740-2
their situation.
This is about to branch off into a subject for another thread, so I think I'll
start a new one for the purpose of battery options for an unheated garage in a
mixed hot/cold climate.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031
ome around.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Dave Angelini Offgrid Solar
Sent: Monday, February 19, 2018 2:46 PM
To: RE-wrenche
ikely to be an issue. Do any of you wrenches have any experience with this
unconditioned setup?
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
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like to operate in two separate 5-10degree windows, essentially
keeping the batteries between 40-45F and 90-95F.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of
he
info, and the choice.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Dave Angelini Offgrid Solar
Sent: Tuesday, February 27, 2018 1:14 P
: renewability
Horizontal mount: ecodrain
I have not used these products, so I cannot endorse any of them, just though
it may be worth consideration.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches On Behalf Of
Drake
Sent
.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches On Behalf Of Nik
Ponzio, Building Energy
Sent: Monday, April 30, 2018 8:32 AM
To: RE-wrenches
Subject: [RE-wrenches] rain guard
We have a roofmount PV array that is
the code there. 605.11.1.2.2 states a single 3ft path on
one edge or another for a hip roof, but 605.11.1.2.4 states that an 18 space is
allowed when modules are mounted on two adjacent roof planes with a hip roof.
With Regards,
Daniel Young,
NABCEP Certified PV Installation
good, and passive house is 0.6 and lower? Because
both the fireplace and the unvented heater could be bad news if that's the
case. Something you might want to see if you client is conscious of. (Not
sure how far you are getting involved in the home design Drake.)
With Regards,
Daniel
%voltage drop on the DC lines. So if
you have the wire run designed for 5% drop at peak power, you’d really only
lose roughly 2-3% total energy per year.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches On Behalf Of
I was emailed recently by someone in my area saying that she thinks here
battery bank is going bad and poisoning her home.. My firm did not install
her off grid system. Her original installer will not respond.
She has an 6yr old battery bank w/ 6 Trojan L16H's (48V). The system has
1.2kw of she
m> rpare...@trojanbattery.com
<http://www.trojanbattery.com/> www.trojanbattery.com
Trojan Battery Company - Clean Energy for LifeT
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Daniel Young
Sent: Tuesday, June 29, 2010 6:50 A
Depending on the situation (you may have extremely picky inspectors), and
the customers concern with aesthetics, you can source large tool boxes from
Lowes or any other large home improvement center. They range from $100-$150
(here in the Midwest) and each one fits 4 x L-16 batteries, but they aren
re in Ohio),
you better make sure your modules comply.
This is my understanding at least.
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:r
combiners before, let alone disconnect combiners
with power supply cards and separate control boxes...
Hopefully a better solution for small string inverters is on the horizon.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified
es,
credentials,
institutional or association affiliations, services, or fees for services]
With Regards,
Daniel Young,
Dovetail Solar and Wind
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Will White
Sent: Tuesday, Apri
product,
especially for saturated grids like Hawaii.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
Dovetail Solar and Wind
From: RE-wrenches [mai
it both ways to see what
works for you with the pricing and products you have available.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
<http:
45min to get it where I would want
itJ
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
<http://www.dovetailsolar.com> www.dovetailsolar.com
Ph: 740-274-0139
Correction, my wire is 0.259" OD, still 0.053 in^2
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
www.dovetailsolar.com
Ph: 740-274-0139
Weve completed over 310 rene
My 2kV PV wire is 0.29"OD, so I use 0.053in^2. It's single layer insulation
if that helps.
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
www.dovetailsolar.com
P
of my knowledge.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Aaron Mandelkor
rns.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Ray Walters
Sent: Tuesday,
I too am interested. Especially after the teaser from SMA that they would
unveil their solution to the 2014 NEC 690.12 fiasco at the show. I see
nothing on SMA's website as of yet.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Cert
year when 2014 NEC hits the
majority of our jurisdictions. Makes me sad.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-w
Anyone on the list had any experiences with Recom solar modules? I have a
client asking about them. Their spec sheets appear to be in order, german
company, good temp coefficients, etc. but that's just paper.
With Regards,
Daniel Young,
NABCEP Certified PV Installation Professio
MUCH
more reliable, but I'm looking for REAL data if it's available. Anyone have
access to warranty claims by enphase on a per product basis? Or better yet,
failure rate vs service life of the units, now that the newer generation of
inverters have a decent install base and kind of rele
. With DC, I would
suspect that you would just essentially be building a full time electromagnet,
not a heat issue, but might cause your clients to get a knock on the door by
some boy scouts on an orienteering trip when their compasses all point to their
house ;)
With Regards,
Daniel
"It also incorporates some pretty nauseating marketing."
Thank you William, I hoped I wasn't the only one who thought that!
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Ce
@75C, and a 100kcmill (4x the area) can only take 545A, or 2.2 times the
current, so not too far from my example].
I hope the above helps more than it hurts.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating I
Correction to the below example:
[In the NEC table 310.15(B) we see that a 250kcmill copper wire handles 255A
@75C, and a 100kcmill (4x the area) can only take 545A, or 2.2 times the
current, so not too far from my example]. "Should be 1000kcmill"
With Regards,
Daniel Young
issipation capacity/temperature. This is how I've always
understood it to be at least.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
-Original Message-
From: RE-wren
e
trace handles AC1 and AC2, so maybe you'd need a second relay to make sure
the generator input is always off when the grid input is active.
Not sure if the trace has this functionality. Hope this applies, or helps
get you down the right path.
With Regards,
Daniel Young,
&kpid=1064-N5-EDWD&gclid=Cj0KEQiAu_GmBRDhtK-kzqKcuJwBEiQAJvB8n49GEUrgP8Uur3FaS47lpinWK8HaY1q0l_Eq9p6pPqoaAiMd8P8HAQ
120V, adjustable volume. I’ve not used it, so I have no idea if it will fit the
bill.
With Regards,
Daniel Young,
NABCEP Certified PV Installation Professio
close to those that weren’t that I can’t pick them
out on the monitoring portal, they just look like typical manufacturing
variances [all within the +/- x% power tolerances])
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Lead Systems
isappeared
8+yrs ago.
Maybe consider this a Poll: (to flash, or not to flash)
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
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to drip through.
Standard crystalline framed Solar modules are just not designed to be a roofing
material…your shooting for less water getting through, you can’t stop it 100%
without something under the array o catch it.
With Regards,
Daniel Young,
NABCEP Certified PV Installation
states default
commercial code agency if I dont have to.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
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We actually planned on bringing that to him next time as well, he didn’t care
that we said we would be tied off if any work were needed in the future, but
the words “permanently installed” might change his tune.
With Regards,
Daniel Young,
NABCEP Certified PV Installation
’, unless either axis of the building
is less than 250’ (which is the case at this site), in which case only 4’ of
clear space is needed on commercial rooftops.
Will let you all know if it holds up.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508
t I can use, but I've not
decided to buy any batteries I am ok with accidently blowing up if I'm
wrongJ).
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
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to everyone who
participated.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of Jason Szumlanski
Sent: Monday, August 10, 2015 5:42 AM
To: RE-wrenches
Subject
I say “ Put AC and DC in separate conduits, try to keep them
separate in the trench if you can do so easily, then bury it and walk away”.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun
quickly
though to prevent issues (say, if your electric clothes dryer finished it’s
cycle, changing you from needing 2kW of generator to supplement PV to all of a
sudden having 2kw too much PV).
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
could break out the I_V tracer if you need to
dig deeper.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
-Original Message-
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of d...@solarwork.com
Sent: Thursday,
expansion. No leaks so far.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Lead Systems Designer for:
Dovetail 2013 cmyk 300dpi.jpg
<http://www.dovetailsolar.com> www.dovetailsolar.com
Ph: 740-274-0139
We’ve completed nearly 400 ren
ted stranded wire is
much easier to pull.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
Lead Systems Designer for:
Dovetail 2013 cmyk 300dpi.jpg
<http://www.dovetailsolar.com> www.dovetailsolar.com
Ph: 740-274-0139
We've
inspectors in the area
that feel like they want a disconnect anyway. I think it was a simple fix in
those cases, we submitted an objection (with code references) in writing, and
just put a disconnect in to close the permit.
With Regards,
Daniel Young,
NABCEP Certified PV Installation
truly cover the cost,
unless the job is next door). But it has not happened enough, or in any sort of
pattern for us to have gotten riled up about it so far.
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re
SE7600 is the only
inverter they currently plan to make compatible with the Tesla Power Wall, and
other similar battery systems.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re
ulation at that splice.
Good Luck,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On
Behalf Of Kevin Pegg
Sent: Wednesday, May 25, 2016 2:40 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Ge
pectively.
Based on the above, my gut says that the 5kW is certainly worth it. And even
the 4k inverter might, but I'm not comfortable going to a 1.5:1 DC:AC ratio
for so many other reasons.....
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-
counter to
industry best practices, and against our advise.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf
Of John Blittersdorf
Sent: Monday, August 22, 2016 9
a link to their system:
http://www.solaredge.com/sites/default/files/export_limitation_application_note_NA.pdf
It would limit export power in real time, not energy over time, so if the dump
load is to prevent a net monthly export of kWh… then I have no clue.
With Regards,
Daniel
akes more
glycol than you have in the container, than you probably have a leak that
you haven't noticed yet. Those stainless steel linesets are very hard to
make 100% tight, especially in a steam back system like Schucos.
Daniel Young,
Lead Systems Designer
Dovetail Solar & Wi
The main thing you can do when non-cycling is to set the charge voltage a
little lower than you normally would.
Check the manufacturer for the recommended full charge voltage (usually
3.6V/cell) that's 57.6V for a 48V pack. I set my absorb voltage to 57V even to
begin with. And float is closer
I recently had to fix a similar issue with a dual SI site. No blown Capacitor,
but blank screens regardless of power cycles, and good voltages in and out.
Took the covers off and notice a red led illuminated on the bottom left corner
of the main circuit board next to the electro-mechanical relay
Jason, this is the solution I was also thinking about bringing up. I wonder if
it would require a change in programming every time the battery was
disconnected/reconnected. If it does need a program change, that makes it much
less desirable. But it could still work. The DIY/ system cobbling type
My read on that is that the splice needs to be anywhere EXCEPT where two
modules meet, so for every 40” nominal module width, there is a 2” exclusion
zone (5% of the module width), so there is a 95% chance a random splice
placement will be in a good place.
Basically they don’t want mid clamps r
Just curious if there is a reason you don’t just cut the roof vent off above
the flashing?
It is allowed by the 2018 IRC and later in section P3103.1.3, solar modules are
explicitly called out as a reason to cut the vents.
https://codes.iccsafe.org/content/IRC2021P1/chapter-31-vents#IRC2021P1_P
Hello Wrenches,
Any experience successfully submitting a performance warranty claim with
SunPower on their solar modules? Right now, in order to Provide what they are
asking for, we will likely spend more time/money testing to their satisfaction
than it would cost for us to likely buy new modul
Have not used them in some time, but used to a LOT and generally happy with
them.
http://www.solarbos.com/Products
Lead times were a bit long, in the 1-2 month range, but who knows what they are
now, last time I used them was pre-pandemic.
--
Danny Young
NABCEP PV Installation Professional #0
Hello Wrenches,
Have a client with 24 x Rolls S550's. 2 of the batteries have given up the
ghost. Rolls will replace them under the pro rated warranty.
The issue us, the client is wanting to replace them with non Rolls batteries to
save $. They can get 400AH 6V L-16 form factor FLA batteries fr
there.
Good Luck!
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridso...@sti.net<mailto:offgridso...@sti.net>
text 209 813 0060
On 2023-04-03 11:03 am, Daniel Young via RE-wrenches wrote:
Hello 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
Can echo this, I did a fresh look into this last year and still have not found
anything better than a hammer and feeler tool.
We are considering going to a deck direct attachment like rooftech as well,
which makes rafter locations less critical. We intend to still have crews find
the rafter and
I still use the SolarABC’s reference map, pulls the ASHRAE data. Good for the
US only.
https://energyresearch.ucf.edu/solar-certification/solar-reference-map/
Not record lows, but I have used this for years as the design low temperature
for string sizing.
They claim the data is outdated, but w
Agreed with August. I have tried professional window teams using pro grade
caulks and sealants. I’ve tried gaskets, I’ve tried the foam tape system Lumos
suggests for their canopy system. Nothing has allowed a reliable and longer
term seal. I moved to the same standard, 100% requiring a roof und
I believe they do. They also have generator support with programable SOC
trigger points. They can start either 2 wire start generators, or if the
generator is existing and has a complicated signaling system, you can actually
wire the Franklin smart module to the existing generator ATS and let F
it's kind of high profile and a fantastic
marketing opportunity.
Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
On Thu, Sep 14, 2023 at 5:17 PM Daniel Young
mailto:da..
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