You could go with a Sonnen. That is meant to be AC coupled, and its a very
simple install.
Nice piece of equipment, but its expensive. We just installed one that has
right around
8kw of Enphase M215 inverter output. So far, no issues.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer
able glitches in the Sonnen's distributed AC?
>
> I am assuming the Enphase ON transitions are more graceful because of
> the UL1741 prove-in period and the individual ramp-up of the individual
> microinverters.
>
> Regards,
>
> Gary Willett PE
> Icarus Engineering &
was
less than 6 months ago and some of these will arc fault about once per year.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Thu, Jan 25, 2018 at 8:52 AM, Steven Lawrence
wrote
and
have never had an issue. Then you get 65A of backfeed capacity.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Wed, Jan 24, 2018 at 1:28 AM, William Miller
wrote:
> Frie
the up front
expense scares many people away. We are located in upstate NY which may
have something to do with it.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Tue, Feb 13, 2018 at 10
:
https://www.fallprotectionpros.com/guardian-two-way-standing-seam-roof-anchor.html
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Sat, Mar 31, 2018 at 1:19 PM, Ray wrote:
> Hi B
south of the
array casting a thin shadow. The hot cell pattern did not specifically
follow the shade pattern on the front of the module.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Fri
cost
effective than just getting a whole new
battery bank right off the bat when they have 10 batteries that have
essentially never been used.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Senior Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
have the wrong voltage
reference.
Cheers,
Dave
*Dave Tedeyan*
Senior Engineer | Taitem Engineering, PC
10 Verizon Lane | Lansing, NY 14882
o. *607.930.3481* x6 f. 607.277.2119
www.taitem.com
Solar • Sustainability • Energy • Design
B-Corporation Best for the World 2018 Honoree
On Thu, Aug 16,
Seaward, and they gave
me a free calibration, even though it had been well under a year since I
owned it. But they did not address the issue I am seeing here.
So does anyone know why I might not be getting a good curve, and if there
is anything that can be done about it?
Thanks,
Dave
*Dave Tedeyan
. No inspectors here seem to care as long as the labeling shows
what is happening. Although we are also fortunate that most inspectors
around here will not make us fix old work as long as we did not touch it
and it presents no safety hazard.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem
whether this will be a whole home backup or just a subset
of their loads, but they have two 200A panels on a single 200A service.
Thanks,
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
paralleled, does
that jump up to a single 12kw input, or are you just limited to two 6kw
inputs?
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
m the solar all the way back to the house.
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 • Design
B-Corporation Best for the World 2018 Ho
em
to not work at all. It held the string voltage down even when it should not
have. The only way to get the string voltage back up was to physically
disconnect the PV from the inverter. So we had to pull the rapid shutdown
and will need to find another solution.
Cheers,
Dave
*Dave Tedeyan, PE*
S
I may have spoken too soon on this. It turns out that the LSOB system just
does not work with PV charge controllers. The Princeton Power Systems
DRI-10 inverter has charge controllers built in, which is why the system
was not working.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem
amera when
the system is functioning can often show if 1/3 the module is not working
or if there are some bad cells in the module.
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.taite
Chris,
We have used AER for trackers. We've had good success with them.
https://www.allearthrenewables.com/product/allearth-solar-trackers
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
modules
for second hand use that otherwise would have ended up in the dump this
way. Obviously though it wont be like new anymore.
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
MI's will need to be
upgraded. Can anyone confirm this?
-Will Sunpower AC modules be compatible?
If anyone out there has any of this info, that would be much appreciated!
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca,
... but I am still not sure if it is right to
charge the customer for all this back and forth when my actions have not
resulted in a fixed and usable inverter. I'd appreciate anyone's thoughts
and feedback on this sort of situation.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Enginee
ly, I know that
they are good people, who are also well connected in the area, so keeping a
good relationship with them is certainly important.
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
over when the power gets cut off.) They also had a set list of
approved meters that can be used for submetering. We were planning on using
eGauges, but ended up needing to put in an approved glass meter as well.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South
..
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 • Design
B-Corporation Best for the World 2018 Honoree
On Mon, Sep 2, 2019 at 12:03 PM Je
wer
dealer and you are a Sunpower dealer yourself. If the original system was
from a Sunpower dealer, you can also have the customer call Sunpower
directly.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14850
o. *607.277.111
quote me I triple the price.
>> 1/3 up front and the rest when it is done. ABB is really slow with payment.
>> I think they sold their inverter business? Sunpower is a great panel but
>> they have had some bad runs. Probably why there are so many new/used panels
>> on the secon
d of setup before.
Thanks much!
-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 • Design
B-Corporation Best for the World 20
troller to
initiate RSD. So this way it will continue to work with the grid down.
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 • Design
B-Corpor
g for in this particular case.
Although I am still curious if others have retrofitted other systems with
something like I was initially talking about for an inverter that does not
have a SPS. I think that at least in this market a low end 3rd party
solution could gain a lot of traction.
*Dave Tedeya
the road)?
This is a fairly simple roof mounted system, <25kw.
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 • Design
B-Corporation Best
inverter. Has anyone experienced this, and would a replacement board
fix the issue? And would anyone have anything like that available?
And if not, can anyone even get a grounded inverter these days? Sunpower
tells me to get a SB6000US, but I cannot even find one of those.
Thanks,
Dave
*Dave Tedeyan
? And is it best to get 4
separate 12V chargers, one 48V charger, or a single 12V charger and put
them all in parallel? Or am I just overthinking this?
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14850
o. *607.277.1118 x121* f
something in 2017 code makes this all not possible, as we are
still on 2014 in NY. See 705.12(D)(2)(c)
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
Hey Mac,
AER (All Earth Renewables) trackers are a dual axis tracker that uses GPS
to follow the sun. We've had good luck with them.
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
e multiple N-G bonds could be
causing these issues.
Does anyone have any ideas?
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 • Design
C
Dave,
Sorry, misspeak on my part. It is DC negatives and grounds that are tied
together. No neutrals in the DC box.
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
. Can you tell me a little more
about what operation this would confirm? The system is not AC coupled.
I'll report back with what I learn.
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
to begin with and it was not until many hours
later that the issues with powering the backed up loads started appearing.
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
grid connection
does not seem to work. Or maybe it would not waste too much energy to use
the bulk charge timer initiate a bulk charge every evening after it has
been selling all day?
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14
eaker in
there to fail.
Another thing I've seen burn marks on a breaker like that just due to loose
connection (is what it appeared to be, anyway) arcing over time.
Good luck,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14850
o. *60
Since Enphase stopped making the old M215's, they have been sending out
M215's that look like IQ microinverters, with an adapter. These supposedly
work with the old Envoy. I am not sure if they are only available as
warranty replacents, or if you can purchase them new though.
Cheers,
Dave
On Tue,
mware with the SD card.
But there are never any logfiles on there.
Any suggestions?
Thanks!
-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 • Design
with this before and have any suggestions on how they fixed it?
This system is 3-4 years old, and the issue only started in the past year
or so.
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
every EQ cycle, it just happens
for most of them.
I also received another suggestion that the battery bank has a couple bad
cells which will lead to higher temps and so with the temperature
compensation the bank is just not getting to a high enough voltage.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior
el battery strings all have the same length of premade
cable, so current should be balanced (unless there is a dead cell or two in
there...).
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.
to 61.6V it hovers
around 61.6 and 61.5.
Lots of good info and ideas here, thanks all.
-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 • Design
about? It seems that this would solve many of the issues associated
with MLPE, but still be able to have the benefits.
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
same niche. Are those even available for
purchase yet? If so, does anyone have experience with these?
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 • Sustaina
way more conservative as to what loads are allowed to be backed up.
Also, is there an inverter bypass built into the BOS enclosure, or do you
need to wire up a separate one in case of inverter failure.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street
press release from Princeton Power stating that the DRI-10 inverter has
received its UL listing. But does anyone out there actually have the
certificate that they would be willing to share?
Thanks!
-Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY
Make sure that your utility allows for this. NYSEG in NY gets very upset if
you put anything in a meter enclosure other than the meter.
Cheers,
Dave
On Thu, Jun 18, 2020, 10:00 AM Kristopher Schmid
wrote:
> If you are going to replace the meter socket, using a 200 amp Milbank and
> a set of Milb
alternative is to just get a whole new inverter.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
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Thanks guys for the recommendations.
-Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Wed, Oct 21, 2015 at 6:38 PM, Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote
Slightly different issue, but I have recently had multiple SB-TL screens
not work correctly on arrival. The knock feature was not working and the
backlight would not turn on. Called SMA (or Sunpower) and they are going to
send us new screens.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer
the shingles when we are done.
On a related note, does anyone have a good product to use on a trapezoidal
(agricultural) metal roof?
Currently we tie ropes to large trees and/or structural members on the
opposite side of the roof.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Ta
If the customer is very particular, we'll replace the shingle. But most of
the time we just put in an aluminum flashing under the shingle.
-Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.co
Solar BOS makes some good disconnects. 4 pole disconnect: F2SK32-1-4XP.
Less Expensive than Midnite Solar, but you have to buy directly from Solar
BOS and the lead times can be longer.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca
It is not Square D, but a Milbank U5168-XTL-200 would do the trick.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Wed, Feb 17, 2016 at 3:31 PM, Patrick A. Shortell
wrote
Recently we have had the AFCI trip in a couple SB-TL-22 inverters.
Restarted the inverter, the fault was not still present. It has not tripped
in the month since at either site. Maybe an issue with the inverter? Only
time will tell.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem
?
Thanks,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
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to go with metal, I would plan to use an equipment ground sized
for the 175A breaker the is on the battery cables...
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Wed, Jun 1, 2016
ove ground conductor length is
<5' you can go with the 30 degree C ambient temperature.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Thu, Jun 23, 2016 at 4:41 PM, Peter Pa
here, so I would
assume that they would be pretty good.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Sun, Aug 21, 2016 at 5:33 PM, wrote:
> i have bought from these folks
his can be caused by the generator?
Has anyone run into a situation like this or something similar?
Thanks for your help,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.
Daryl,
That is what I thought at first. Very rare, but I suppose not impossible
that I
would have two inverters with bad arc fault detectors. But since we are
still
getting arc faults after replacing the inverters, I am thinking that it
must be
something else.
Cheers,
Dave
*--*
*Dave Tedeyan
things you mentioned,
although there
may be a well pump. They also do have a large water storage tank for
heating, but they
say that they have not needed to use it yet this year. Then there is also
the generator...
Thanks for your recommendations.
-Dave
*--*
*Dave Tedeyan*
*Project Engineer
test for this? eGague unit maybe?
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Fri, Nov 11, 2016 at 10:15 AM, Drake <
drake.chamber...@redwoodalliance.org> wrote:
> E
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
www.taitem.com
On Tue, Nov 15, 2016 at 10:40 AM, August Goers wrote:
> Dave,
>
>
>
> It is particularly interesting that you have two inverters with
ebsite so that we can check
it before we all waste hours on the phone with tech support and on site
tracking down issues that simply cannot be fixed by us.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
109 S. Albany Street, Ithaca, NY 14850
Voice: (607) 277-1118 x121
e inverter closer to the meter.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
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Jay,
I just called them about an hour ago about a FP2 system with a failed
inverter. They said they'd have the new control board sent out today,
hopefully they actually will.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
This one in particular is a warranty repair. They did say that if it was
not warranty that I would be better off getting it through a distributor.
We've used Ameresco in the past.
-Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
source
of this figured out. I had talked to both Sunpower and SMA at the time of
this issue,
and neither was able to give much help.
Cheers,
Dave
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On S
*--*
*Dave Tedeyan*
*Project Engineer*
*Taitem Engineering, PC*
10 Verizon Lane, Lansing, NY 14882
Voice: (607) 930-3481 x6
www.taitem.com
On Mon, Oct 16, 2017 at 4:54 PM, August Goers wrote:
> Hi Wrenches,
>
> Occasionally, we need to up-size the inverter output circuit conductor
> s
x27;t used this
specific one before, but I did order one today :)
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 • Design
Certified B-Corpor
ler than the rest.
>
> *Al Frishman*
> EvolvedSolar
> (917) 699-6641
>
> On Jul 29, 2020, at 8:57 PM, Dave Tedeyan wrote:
>
> Scott,
> The best way to find a faulty MI (at least one that is not working at all)
> would be to scan the array with an IR camera. When done proper
rvice point even though it
comes first? Or is this not something that is allowed? We are on NEC 2017
here in NY..
.
Thanks!
-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
ot; is the first
point of overcurrent protection for the service. What I am thinking of is
similar to the disconnect allowed on the line side of the meter (230.82
(3)), although this one is on the load side of the meter.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 So
oring site, but that one seems to be
almost as slow, and give only basic system information.
I am curious if others are having success monitoring their Sunpower
systems, or if people are having similar issues.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South A
Jason,
Bright sunny days, disconnect on the west side of house, maybe in the sun?
43.56A * 1.25 for continuous duty = 54.45A. If these disconnects are also
baking in the sun, maybe the extra ambient heat is enough to push it over
the edge? Just a thought.
Cheers,
Dave
*Dave Tedeyan, PE*
Senior
generator from Harbor Freight.
I have not laid my own eyes on it yet, but will be there in the next day or
two. Just wondering if anyone has experienced these symptoms and have a
good idea of what to look for first.
Thanks!
-Dave
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110
do you know if the Conext will log an error if the relays have
actually been damaged? I am hoping that there will be something in the
error logs that will help identify whether there is an inverter issue now,
or whether the issue lies with the generator input.
Thanks!
-Dave
*Dave Tedeyan, PE*
Sen
around 52Hz, when loaded. After, we got it to stay around 56Hz.
Fortunately, the homeowner is open to getting a better generator.
Thanks for the tips!
*Dave Tedeyan, PE*
Senior Engineer | Taitem Engineering, PC
110 South Albany Street | Ithaca, NY 14850
o. *607.277.1118 x121* f. 607.277.2119
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
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
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
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
, 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
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
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
permail/re-wrenches-re-wrenches.org
>
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--
*Dave Tedeyan, PE*
[image: Sungineer Solar]
1653 Slaterville Road, Ithaca, NY
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
dfx.com
> <http://www.solarandwindfx.com> ~ E-mail: ch...@solarandwindfx.com
> *
>
>
> 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
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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
. 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
://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
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
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
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