; can really add up.
>
>
>
> With either interlock option, the inverter combining, the interlocked
> bypass and output breakers all fit into one load center.
>
>
>
> I hope the time we spent on this discussion helps someone out there.
> That’s why we do it.
>
>
Solar
17395 Oak Road, Atascadero, CA 93422
805-438-5600
www.millersolar.com
CA Lic. 773985
*From:* Jason Szumlanski [mailto:ja...@floridasolardesigngroup.com]
*Sent:* Wednesday, March 27, 2024 3:52 PM
*To:* Kirk Herander
*Cc:* William Miller; RE-wrenches
*Subject:* Re: [RE-wrenches] Sol-Ark 15K
ining, the interlocked
>> bypass and output breakers all fit into one load center.
>>
>>
>>
>> I hope the time we spent on this discussion helps someone out there.
>> That’s why we do it.
>>
>>
>>
>> Wm
>>
>>
>>
>> M
eone out there.
> That’s why we do it.
>
>
>
> Wm
>
>
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
>
> *From:* Kirk Herander [mai
*Subject:* Re: [RE-wrenches] Sol-Ark 15K AC Output
www.interlockkit.com - they stock and custom make interlock bypasses
including multiple breakers.
Square D also makes a 400 A panel which excepts either bolt on or snap on
QO breakers.
*Kirk Herander / **kirkh@vermont.solar *
*Owner
, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com
>
> CA Lic. 773985
>
>
>
>
>
> *From:* Jason Szumlanski [mailto:ja...@floridasolardesigngroup.com]
> *Sent:* Wednesday, March 27, 2024 3:12 AM
> *To:* will...@millersolar.com
> *Cc:* RE-wrenches
*Subject:* Re: [RE-wrenches] Sol-Ark 15K AC Output
William,
Thanks for the information on grid peak shaving. That is what I thought
could be done. The description is a misnomer of sorts (like a lot of things
in Sol-Ark lingo). It's a bit hard to follow and not nearly well
enough documented
on how to provide bypass. I tried to depict the
> > > bypass interlock graphically. The point is you cannot turn on the bypass
> > > breaker without turning off the inverter output breakers. See photos of
> > > the actual hardware on the web page linked below. I find
elow. I find bypass
>> very handy because if there is an inverter or battery failure the client
>> can restore power immediately and I can respond at a more convenient time.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Wm
>>
>&g
very handy because if there is an inverter or battery failure the client
>> can restore power immediately and I can respond at a more convenient time.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Wm
>>
>>
>>
>> Miller
Wrenches, Jason
I have always either with outback and with solark have always connected
each unit with a distribution panel with breakers regardless of what's in
the inverter package. This same goes for the gen set connections with
proper breakers so not to have to over size the wires.
I have
#4 wire as the output of each inverter is definitely not adequate, as each
inverter can pass through 150A of generator power. In theory it would be
spit across all four, but that doesn't matter. It's an open spigot, so at a
minimum the output conductors would need to be 150A rated in my opinion.
Hi Dave,
XW inverters do a decent job of explaining generator support mode where
small generators can be supplemented by inverter power to start up large
loads. I believe several other brands can do this, and I believe Sol-Ark is
one of them. But front line customer service wasn't really up to
Jason:
I am wondering on the advisability of hardwiring the outputs of all four
inverters together. If one inverter fails the other three can backfeed
into it without any means to disconnect the failed inverter and without
over-current protection. Have you considered landing the output of
I may be wrong, but I was under the impression that most inverter/chargers
are either being an inverter or a charger at any given time, but not both.
So, once the inverter sees the AC voltage from the generator, then it will
switch to being a charger and use the generator AC power to charge the
i like using gutters, it keeps it clean
you can just as easily put the gutter vertical on the side and use close
nipples…..
Max Balchowsky
SEE Systems
On Wed, Aug 2, 2023 at 8:04 AM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> I see a lot of pictures with
I just checked out the Homegrid batteries. Just throwing this out there. If
there is enough ceiling height you could hang them. That's typically how we
deal with transformers in commercial and industrial settings. We usually
build a permanent gantry out of square tubing, 1/2" rod and strut. Then
Very nice Install Michael! Was that the project on the xxCloud River we
talked about?
It looks like you have kept the gutter heat gain down to protect
electronics. "the rule of thumb is that every 10°C increase in
temperature reduces component life by half"
Michael,
I think your work looks stellar, and I seriously doubt there would be any
airflow issues.
I plan to use strut to put the inverters out from the wall to deal with the
working depth issue, which should also help with airflow. That was part of
my thought process - even if the inverters
We handle the 15Ks much like most vfds since both have cooling vents in the
rear and knockouts or wiring compartments in the rear. What we do is set
the units back so that the rear portion is hanging off of the rear of the
gutter. The gutter in this case is held off of the wall for air flow. It
Thanks, Lou. I missed that 6" bottom spacing requirement in the manual.
That could explain a lot of the installation pictures I have seen.
On the flip side, we have seen some examples of installations in this
thread without this 6-inch spacing, presumably without any adverse effects.
Obviously,
Hello All,
Super impressive install, Michael. Almost worth a flight, and a site visit!
Back to Jason's initial question
If you are using the 15kW Outdoor Sol-Ark they vent from the top and bottom
with a required 6" minimum spacing on both the top and bottom.
A 12kW Outdoor with 8x8 gutter
Jason
In plenty of applications l will use couplers with chase nipples, height is
one issue but installed working height is very important. I use a 8"x8"x X
gutter and sometimes even off set that from the wall, l have had AHJ not
want to see mixed cables LVDC and AC in the same conduit so pass
Jason
The old Sol-Ark had the PV disconnect and the Wi-Fi adapter connection on the
bottom and that needed about six or 8 inches of clearance. The current Sol-Ark
has those items on the side of the unit so you don’t need such clearance on the
bottom. I installed several Sol-Ark and I use the
Just so it is abundantly clear to all that wish to modify or cut open an
inverter, SMA will not do any advanced replacements of any inverters that
have been modified, Outback is not a problem as they are field serviceable,
SolArk is a all in one unit and any modification to the cabinet will
I think the idea here is that 690.9 allows the inverter output conductors
to be sized based on the maximum ampacity and an OCPD is actually not
required is the conductor ampacity is sufficient. So in an off-grid
scenario, the wires could be as small as #4. In a grid interconnected
situation where
Wrenches
The new solark 15 has a 200 amp rated contactor this is so if you want to
have whole home pass through you can but if you only have an inverter then
use that as your starting point and if the genny is contributing then add
that is, you do not need 2/0 for a single 15 k off grid but you
I've been using two gutters with multiple 12KW Sol-Arks Installs - one
4x4" that I mount immediately under the AC KOs using forward biased
offset nipples (it's front face is just abouut 1/2" in front of front
plane of Sol-Arks) and then a 6x6" set back and down and reached with
4" nipples
Be carefull about modifying inverters or any cabinets with long term
warranties because modifying may result in sending your unit for repair and
not getting exchange units in the event of a warranty issue. Outback is
served in parts so that may not be an issue, solark is too soon to tell.
Fronius
We cut out the bottom plate entirely with a die grinder/cut off wheel and
then wrap the raw edge with vinyl "edge wrap" and set the inverters on top
of 10 x 10 x whatever gutters. The layout and sizes of Sol-Arks knock-outs
is screwy. Just need a bonding jumper between both enclosures. This is
Hi Chris,
Can’t you increase the size of the KO’s?
Jay
> On May 7, 2022, at 7:17 PM, Chris Sparadeo via RE-wrenches
> wrote:
>
>
> Jason,
>
> I think I agree with your interpretation of the wiring diagram. My hesitation
> is, with a 1-1/4” KO for AC inputs, only choice seems to be a >24”
Jason,
I think I agree with your interpretation of the wiring diagram. My
hesitation is, with a 1-1/4” KO for AC inputs, only choice seems to be a
>24” stub conduit for 2/0 conductores to a fused disconnect. Not a fun pipe
to bend…and extra BOS seems like a less than ideal solution.
Is this your
Yes and no, I think this is a tap, "a tap shall be permitted anywhere along
a feeder" ' as long as it is less than a 10-foot rule or 25-foot rule
ending in a listed OCPD with a rating sufficient to handle the maximum
overcurrent'. Service equipment residential is rated for fault currents of
up
But this isn't a tap. It's a feeder conductor connected to an OCPD.
I guess if you don't have a grid in or generator in or AC Coupled PV, you
could just call it an inverter output circuit and it could be sized
accordingly. But it would still need to be protected at it's source by an
appropriately
The tap rule says you can reduce to 10% of the nominal size for 10 feet and
protect at the downstream OCPD or 25% for 25 feet for solar with multiple
sources see 705
On Sat, Apr 16, 2022 at 9:16 PM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> That's what I'm
That's what I'm thinking. You would need to use a 200A conductor to a
separate load out OCPD before downsizing the wire. I guess there are pros
and cons, but it seems this is geared toward whole house backup for 200A
services. I'm eager to get an opportunity to use it in that scenario.
Jason
Jason,
Any additional OCPD downstream of the 200A load output breaker could allow
for a smaller wire size to be used at these terminals. For example, load
output conductors run to a 100A main breaker panel board. Obviously
depending on circumstances, a #4 copper could fit the bill.
What I’m not
Hello, The overcurrent device is to protect the conductors. you can put
any size wire, but you must protect with the overcurrent device. REmember
in solar equipment; you may have more than one supply source. The DC best
example is solar modules connected in parallel, on
On Fri, Apr 15,
That's a different scenario, as a 100A genny would have a 100A OCPD. I
understand that the inverter output rating is limited, but what section of
code allows a 200A breaker to protect a #4 wire?
On Fri, Apr 15, 2022 at 9:26 PM Jerry Shafer via RE-wrenches <
You must meet all expected source output potentials within the design and
operating limits, as long as the distribution panel and connected wiring is
rated for the max output of the protected source then you are good. A 200
ATS connected to a 10 kW genny does not require 2/0 as it will never meet
Hi Jason,
You bring up a valid point….in an off-grid scenario with the 15k do you
size the conductors to the continuous capacity, surge capacity or the OCPD
of the unit?
-Chris
On Fri, Apr 15, 2022 at 4:01 PM Jason Szumlanski via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> P.S.
P.S. ICYMI, this inverter has a massive combined AC coupled and DC coupled
capacity. They allow 15kWdc plus 19.2kWac!!! Impressive.
On Fri, Apr 15, 2022 at 10:59 AM Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:
> I'm not following the wiring diagrams for this new inverter. It
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