It was about a month ago that I tried reaching out and was getting that
weird phone message that does not allow you to get anywhere. I called my
sales rep who told me off the record that they basically imploded and all
employees were told not to come in. He is now working somewhere else. A
couple w
. Their website does look legit. I am just curious if anyone has
used them before.
Thanks!
-Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com
tion if it wont work.
Or, if anyone has other equipment suggestions, I am open to that too.
Thanks!
-Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sun
tps://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 270-0370
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Pay optional
Or a
different way to actively vent a battery box? I prefer to not have a DC
draw that does not go through the inverter if possible.
Cheers,
Dave
--
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Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca,
Evan,
I am not sure if this is the same issue, but I have seen a lot of arc fault
issues with the E20-327 modules paired with SMA inverters. Every system
that we have done repairs on have had the Yukita junction boxes, and there
were a handful of failed solder joints on the diodes in the junction b
hange listserver email address & settings:
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>
> There are two list archives for searching. When one doesn't work, try the
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> http:/
This winter we were fixing up a system with a fronius primo inverter and
adding rapid shutdown. Fronius very much recommended against using Tigo.
They recommended we use Fire Raptors. They have been working fine.
Cheers,
Dave
On Thu, May 23, 2024, 8:27 PM Chris Sparadeo via RE-wrenches <
re-wren
06
>> Maverick Solar Enterprises, Inc.
>> • Solar Commander Remote Power
>> • SunFlow Systems Cathodic Protection
>> maver...@mavericksolar.com
>> 512-460-9825
>>
>>
>>
>> On Apr 25, 2024, at 5:57 PM, Dave Tedeyan via RE-wrenches <
>>
setpoints and a non-temperature compensated voltage for the other one?
Thanks!
-Dave
On Wed, Apr 24, 2024, 3:33 PM Dave Tedeyan wrote:
> Maverick and Steve,
>
> Thank you much for pointing me in the right direction here. I was looking
> at the Radian setting and not the Mate3S settings.
ries after 13
>> years and most of them are still viable.
>>
>> As a precaution, For AC coupling, I also install a high battery AUX port
>> controlled relay that drops the AC coupling input circuit.
>>
>> Thank you,
>>
>> Maverick
>>
>> Ma
tps://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 270-0370
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>
tion to shop
> around is a good one. NABECP I THINK, has some leads on firms for this.
>
>
> Chris
> On 3/10/2024 6:23 PM, Dave Tedeyan via RE-wrenches wrote:
>
> Hi All,
>
> I have an insurance question and am very curious about how others deal
> with this, or do
agent putting ungrounded fears in
our head?
Thanks for your thoughts.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sung
Another one out there that is worth looking at is MT Solar.
Cheers,
Dave
On Fri, Mar 8, 2024, 5:51 PM Kent via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Jeremy,
>
> I think the Solar RacksWorks TPMs are virtually identical to the DPW TPMs.
> My go to TPM is General Specialties
> <
any groups that would want to have these older panels and actually use them
for installation. These are in the Maryland region, but would be happy to
have any contacts.
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Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 165
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x27;t work, try the
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, 2023 at 9:07 AM Jay via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> I think that using a megger etc to test the panels and wires is what I’d
>> do before I yanked out all the
>> Wires.
>>
>> They are not that expensive anymore and m
this one, ideally, I would know
that replacing the DC wires will fix it. So I am curious if people have
done this, to still find that the issue was something internal to the
inverter.
Thanks!
-Dave
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Dave Tedeyan, P.E.
Owner | Sungineer
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[ima
der if thats true for the Envy app also.
>
> PS I found out the Guardian gateway will not recognise a newer "mesh" wifi
> signal. Fortress is working on a fix, but the physical LAN connection does
> work.
>
> On Thu, Nov 30, 2023 at 11:28 AM Dave Tedeyan
> wrote:
&
When one doesn't work, try the
> other:
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Mine was a roof mount. We had very few SolarWorld projects. In fact, this
might be our only one.
On Fri, Nov 10, 2023, 8:10 AM Chris Schaefer via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> I'd be curious to know of the connector failures y'all have experienced,
> were the majority
iance
>
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> There are two list archives for se
>
>> Thanks,
>> Kienan
>>
>> *Green-Go Solar Wholesale Distribution LLC*
>>
>> *kienan@dist.solar*
>>
>> *(801) 631-5584(Cell)*
>>
>> *www.distribution.solar*
>>
>> On Oct 9, 2023, at 8:33 AM, Dave Tedeyan via RE-wrenches <
&
ammer
The cordless drill is tempting because I already have a bunch of DeWalt
equipment, and it would be nice to avoid needing a generator or some very
long extension cords.
Thanks!
-Dave
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[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he |
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MT 59715
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>
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[image: Logo] <https://www.sungineersolar.com
, its not
a big deal, since these batteries are just for short term backup, so if the
inverter just cycle off and on when the batteries are mostly full, that
will be okay. But it would be nice if I can set up the frequency control.
Cheers,
Dave
--
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**kirkh@vermont.solar *
>
> *Owner|Principal, VT Solar, LLC*
>
> *Celebrating our 32st Anniversary 1991-2023!!*
>
> dba Vermont Solar Engineering
>
> 802.863.1202
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nomous Energies | Owner/Operator
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>
>
>
>
> On Thu, Jun 8, 2023 at 2:33 PM Dave Tedeyan via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Also being in NYS, I have
gt; http://www.re-wrenches.org/etiquette.htm
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> Michael Morningstar
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Dave Tedeyan, P.E.
Owner | Sungineer Solar
p:
heers,
Dave
On Thu, Feb 23, 2023 at 1:36 PM Dave Tedeyan
wrote:
> The customer has already had the utility come out to take a look. He says
> they had him turn off the solar, and then they measured 246V at the
> transformer and then said it's not their problem. He was going to try to
ch if there is a drop and how much. Now turn off everything and
> power up the solar again watch the voltage at the meter if it climbs up and
> close to limit it might be the feeders. It's all process of elimination.
> Lots of fun
>
>
> On Thu, Feb 23, 2023, 9:03 AM Dave Tede
re other hidden issues if the house is at 260V during times of high
solar production?
Thanks!
-Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http:
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have had better experiences when
there is consumption CT's but no production CT's.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http:
arching. When one doesn't work, try the
> other:
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> Check out or
Locus
meter and put in the Vision meter?
Thanks!
-Dave
--
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Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (6
stallation Professional
> ---
>
>
>
> On 2022-10-07 11:42, Dave Tedeyan via RE-wrenches wrote:
>
> Hi All,
>
> I've got someone who wants to tie their off-grid system with a Magnum
> inverter (which I think is a 4024 PAE inverter) to the grid. Since the
> Magnu
agnum.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 288-2898
___
n ADDA ad0812ub-f71. I found one
seller on ebay who has a few of these, so maybe I should just get them?
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: ww
/charger also
takes PV power directly and goes for $1250. And their 48V 100AH battery is
only $1500. I am curious if anyone has used this stuff and if it is
actually legit.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him |
PVS5? The
Enphase CT is rated at 0.5V at 200A (at least that is what it says on the
CT label). I would prefer to just get a Sunpower production CT, but I am
not sure that I can being that we are no longer a Sunpower dealer.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave T
them
> statically remain in location without the tape, the loop will prevent
> drooping and if properly located rest on the rail.
> Jerry
>
> On Wed, Jun 29, 2022 at 1:07 PM Dave Tedeyan via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Hi all,
>>
nspector
>
> On Thu, Jun 2, 2022 at 6:37 AM Dave Tedeyan via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Hi All,
>>
>> I just got some of the Qcell 360w AC modules that have the Enphase
>> microinverter factory applied to the back. The modu
they would not sag enough to touch the roof, or is the tape the only thing
> preventing the leads from touching the roof?
>
> Jason Szumlanski
> Florida Solar Design Group
>
>
>
>
> On Thu, Jun 2, 2022 at 9:37 AM Dave Tedeyan via RE-wrenches <
> re-wrenches@list
,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 288-2898
to activate the SPS. Can anyone here verify this? Have you done
this, and does it work as expected with no extra hardware needed?
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Itha
;>
>>
>>
>> Danny Young
>>
>> Engineering Team Lead
>> Solar Energy Solutions
>>
>> Lexington | Louisville | Bloomington | Cincinnati | Evansville |
>> Indianapolis
>>
>> 513-448-5176 (mobile)
>>
>> 877-312-7456 (Main Off
d use them.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
c: (607) 288-2898
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[image: Logo] <https://www.sungineersolar.com/>
D
off any residual oil that might be left
> after manufacturing, just to assure strong adhesion.
>
> Geocell 2300 is another classic:
>
> https://www.geocelusa.com/product/2300-construction-tripolymer-sealant/
>
>
> August
> Luminalt
>
> On Wed, Mar 9, 2022 at 6:14 AM
Hi All,
What sealant do you all like to use for flashings on a shingle roof? I have
used the Geocel S2 and S4 for years, and it seems like it is nearly
impossible to get right now.
Thanks!
Dave
--
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Dave Tedeyan, P.E.
Owner | Sungineer Solar
n one doesn't work, try the
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[imag
Drake,
I believe that is for a single phase 2 wire output only. I am assuming one
hot and one neutral for the inverter output in this case. I would think
most *grid tied* inverters fall under 705.95B, where the neutral is only a
voltage sense and can be sized as small as the equipment ground.
Cheer
amp; settings:
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this
before, but that was for the charge controller. A couple people said they
had suppliers for the fans, but none specifically were mentioned on that
thread.
I appreciate the help!
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
left side (of the 2-pole) is far more problematic for
>>>>> some odd reason. It's not the fuse brand either.
>>>>>
>>>>> I believe the design fault is how the blades only hit a single contact
>>>>> on one side when they close. The Squ
> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.sma-america.com%2Fproducts%2Fsolarinverters%2Fsunny-tripower-core1.html&data=04%7C01%7Cmichael.mahon%40sma-america.com%7C8f44865f11fd477f872508d9c6a18ead%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C1%7C637759219458292776%
Hi Mac,
Might I ask what modules these are connected to? There is some history here
with Sunpower modules (and possibly other high power, high voltage
modules). In these cases the issue is the module. If that's the case I can
provide some more detail about it.
As for remote resetting, it is actua
whole controller.
Thanks!
-Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Owner | Sungineer Solar
p: he | him | his
a: 1653 Slaterville Rd. | Ithaca, NY 14850
w: www.sungineersolar.com <http://www.sungineersolar.com/>
Sorry about the wrong link, here's the correct one:
>
> https://www.lg.com/us/business/neon-r/lg-lg395a1c-a6
>
> Should I assume that if the fire department pulls the meter at
> a house fire, that qualifies as rapid shutdown?
>
> Bill
> On 12/7/2021 5:
es for searching. When one doesn't work, try the
> other:
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> C
(of the 2-pole) is far more problematic for
>>>> some odd reason. It's not the fuse brand either.
>>>>
>>>> I believe the design fault is how the blades only hit a single contact
>>>> on one side when they close. The Square D alternative has the blade
>&g
Hi Jason,
I recently did a microinverter swap of the old D380's to 54 of the IQ7
190's. Once it was commissioned I started seeing random MI's drop out, but
not always the same ones. I am pretty sure that this was due to
overvoltage. I measured the line voltage at 255v with the system turned
off.
N
larger system where the culprit
>> was hard to notice…
>>
>>
>>
>> Best regards,
>>
>> Lloyd
>>
>>
>>
>> Lloyd Hoffstatter
>>
>> Sunstruck Consulting
>>
>>
>>
>> Sent from Mail <https://go.micr
some kind of fault in the inverter itself
that
occasionally induces extra current? Is there any way to tweak the settings
so that it
actually produces a bit more than 11.4kw? I appreciate your thoughts.
Cheers,
Dave
--
[image: Logo] <https://www.sungineersolar.com/>
Dave Tedeyan, P.E.
Hi All,
I am looking for recommendations for a solar racking system that can be put
on a flat commercial roof where the point loads can span 12-13" east/west.
I am imagining a system built up almost like a ground mount. Does anyone
have manufacturer suggestions?
Thanks!
-Dave
Hi Chris,
I also am curious of others experiences. I've got one system with SMA and
the TS4-R-F. No problems, but it's only 6 months old. I hear that SMA now
recommends the ones made by JMS, but it looks like essentially the same
thing.
Cheers,
Dave
On Tue, Aug 24, 2021, 11:22 AM Christopher Warfe
s scared as he was on a lake one
> day...Good Luck!
>
>
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/>
> e-mail offgridso...@sti.net
> text 209 813 0060*
&
ctric boats. There is quite a bit of this kind of wiring out there as
> I remember.
>
> There are some other standards for marine inverters like, UL 458 marine
> supplement and ABYC ratings.
>
> This includes neutral ground switching like in mobile apps too IIRC.
>
> Of
t; There are two list archives for searching. When one doesn't work, try the
> other:
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Kirk,
Could there be a loose wire connection to the breaker? That could cause it
to heat up an trip sooner than it otherwise would.
Cheers,
Dave
On Sat, May 8, 2021, 2:13 PM Kirk Herander, VSE wrote:
> I have a system where the SE1 inverter fried internally. The 60A AC
> output breaker tripp
Hi Dave,
You did get the Square D part right. See the Schneider website, which shows
that it is 600V DC and does have an off in the middle.
https://www.se.com/us/en/product/DTU361/safety-switch%2C-double-throw%2C-non-fusible%2C-30a%2C-600-vac-vdc%2C-3-poles%2C-30-hp%2C-nema-1/
Cheers,
Dave
On S
://members.sti.net/offgridsolar/>
>> e-mail offgridso...@sti.net
>> text 209 813 0060*
>>
>> On Tue, 4 May 2021 19:24:13 -0400, Dave Tedeyan
>> wrote:
>>
>> I suppose the question here is - which is the worse failure mode?
>> A. Solar turning of
. The 240 V output of the generator circuit provides the signal.
>>>
>>> At 10:02 AM 5/4/2021, you wrote:
>>>
>>> Get a contactor with a 240 VAC coil. Connect the coil wire wires to the
>>> 240 V output circuit of the generator, so when the gene
will need something rated for just over 30A. This
seems like a better way to allow the generator to run at any time it is
needed, especially if it is a gloomy, snowy, winter day.
Cheers,
Dave
--
*Dave Tedeyan, PE*
[image: Sungineer Solar]
1653 Slaterville Road, Ithaca, NY 14850
Cell: 60
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dfx.com
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> *
>
>
> Thomas Jefferson, the author of our great Constitution, once said,
> "democracy" will cease to exist when you take away from those who are
> willing to work and give to th
allow all the solar to independently charge each battery? Is
there another product out there that people would recommend for this?
Thanks for the help!
Cheers,
Dave
--
*Dave Tedeyan, PE*
[image: Sungineer Solar]
1653 Slaterville Road, Ithaca, NY 14850
Cell: 607-288-2898
www.sungineersolar.com
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*Dave Tedeyan, PE*
[image: Sungineer Solar]
1653 Slaterville Road, Ithaca, NY
Then just as a follow up, I looked at the SMA-41 datasheet. This shows that
it runs at it's highest efficiency when the output power / rated power is
about 0.4 to 0.6, and the only real loss in efficiency comes when you are
running at about 0.1 and below.
On Wed, Mar 3, 2021, 8:35 PM
I've never really trusted PVWatts on this. I just did a quick test using my
location in the northeast, with all the standard values and then just
changing the DC to AC ratio. It's telling me that a ratio of 1.5 is almost
exactly the same as a ratio of 1, and that around 1.3 is best. You actually
lo
, and also if there is a battery failure at some point they can still
run as a grid tied system.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14850
o. *607.277.1118 x121* f. 607.277.2119
www.taitem.com
Solar • Sustainability • Energy
put
the ENH202 in the middle of someone's house and generally aim it in the
right direction and there would be great signal 500' away even through some
trees. The TP link one needs a much better line of sight.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 So
There is also a menu (I don't have the code handy now, but Fronius tech
support should be able to tell you) where you can specifically adjust the
individual operating windows - voltage and frequency trips and trip times.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineerin
t;we go where powerlines don't"
> http://members.sti.net/offgridsolar/ <http://members.sti.net/offgridsolar/>
> e-mail offgridso...@sti.net
> text 209 813 0060*
>
> On Mon, 22 Feb 2021 18:52:14 -0500, Dave Tedeyan
> wrote:
>
> It's big and expensive, b
It's big and expensive, but you can do a SQD DTU361. At least that part
number should get you on the right track. You are looking for a double pole
double throw switch, correct?
Cheers,
Dave
On Mon, Feb 22, 2021, 4:59 PM Dave Angelini Offgrid Solar <
offgridso...@sti.net> wrote:
> Anyone know of
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