[RE-wrenches] Sol-Ark install

[Dana Orzel]

We have done one Solark installation & I was shocked as to the lack of ground wire landing terminals & space. We added a 12126 metal box below to ease the # of entrances to two 11/4”.
 I jumpered a # 8 to a second ground bar to allow for additional landing locations. I called Solark to question this & the response to the question was “yeah we have heard this from other installers “.
End of call. 
Dana Orzel
C: 208.721.7003
E- dana at solarwork.com

> On Apr 13, 2022, at 8:21 PM, Maverick Brown via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
> 
> Ron
> 
> The Sol-Ark has two MPPT channels and has two separate landing spots for each MPPT channels. Each landing pair needs matching strings. 8 AWG wire barely fits so the Sol-Ark PV terminals so they may only be rated for 10AWG. 
> 
> I’m assuming you have a ground array  The most common stringing method would be to use a trench with conduit and THHN wire. You could also sleeve a direct-burial cable into the ground.  Calculate the voltage drop over the distance to make sure 10AWG is adequate. If not, then make a junction, like a MidNite or Outback combiner or an IMO switch at the array to get up the right wire size, with an added MidNite Surge Protector or EMP shield device. If it’s a long distance (larger wire size), add another combiner at the inverter building entrance to get back to 10 AWG. 
> 
> https://practicalpreppers.com/product/imo-4-pole-16-amp-dc-disconnect/
> 
> Also, The Sol-Ark sizing guide helps with string calculations. 
> 
> https://www.sol-ark.com/solar-panel-sizing/SolarPanelSizing.html
> 
> Contact me off list with additional questions. 
> 
> 
> 
> Maverick Brown
> Off-Grid Solar Commander since 2006
> Maverick Solar Enterprises, Inc.
>  • Solar Commander Remote Power
>  • SunFlow Systems Cathodic Protection 
> maverick at mavericksolar.com
> 512-460-9825
> 
> 
>>> On Apr 12, 2022, at 9:42 PM, Ron Young via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
>>> 
>> Hi Wrenches, trying to wrap my head around a first time Sol-Ark install. Because the max DC voltage is 500v at 18a  and the PV I’m using is 40v DC each I will have to create three strings each 480v. What would be the best choice for a home run wire? I’ve always used smaller strings with micro inverters, a combiner at the array and a single Teck home run cable but the string inverter presents a different scenario and it looks like I’ll need to use three home run cables, one for each string. 
>> 
>> Ron Young
>> 
>> earthRight Products - Solareagle.com
>> Alternative Energy Solutions ~ Renewable Energy Products
>> 
>> 
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