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  1. J

    Extending CT sensor wires

    I'd like to extend some CT sensor wires, let's say 25 feet. What is best practice for that? What current to they carry/what gauge is needed? Shielded wires? Twisted pairs? Shielded pairs? What effect does putting it in EMT have? Do CT wires influence each other if several are run together...
  2. J

    Sol-Ark 15K - where to put the grid side current sensors?

    My sol-ark 15k is going inline in a 100A subpanel feeder but I will be net metering. I have a 400A service, which routes from the meter base to two adjacent outdoor 200A main panels, one of which has a 100A breaker that will feed the solark (inside) and subpanel (inside). What are the pros and...
  3. J

    backup inverter for longer grid outages

    Let's say I have a grid tied sol-ark 15K with 30kwh of 48v batteries. If there is a long term grid outage, what is the best way to economically have a backup solar charger/inverter on hand? Another 15K would be great, and maybe that will happen along with 2 or 3 more strings of panels in the...
  4. J

    Fusible disconnect after meter for Duke/Progress

    I have a few questions about fusible disconnects, to go between Duke meter and Sol-Ark 15K. First, while Lowes has this disconnect, it doesn't have 200A fuses that I can find. https://www.lowes.com/pd/Siemens-200-Amp-2-Pole-Fusible-General-Safety-Switch-Disconnect/5013278421 Evidently I need...
  5. J

    4/0 grid and load wires to/from Sol-Ark 15K through 1.5" conduit?

    Unless I am very confused, the knockouts for AC lines in and out of a Sol-Ark 15K are 1.9", which is 1.5" nominal conduit size. The Sol-Ark is rated for 4/0 aluminum or copper wire to handle 200A pass through from the grid. But all the conduit fill charts and calculators I can find agree that...
  6. J

    Using Chargverter as generator input for Sol-Ark 15K set up for Smart Load

    I am putting in a Sol-Ark 15K and I'd like to use the generator connection in the Smart Load mode so I can shed those loads when the grid is down (unless I turn them on manually). So, both for redunancy on battery charging and to regain a generator input, I am thinking an EG4 Chargeverter could...
  7. J

    wire/conduit size/cost sanity check...

    I am designing as system with 36 panels in 9-panel 450V 9A strings. I'd like to run each string back to a solark 15k instead of combining them at the source. The problem is that my shop roof where I can put the panels is almost 300' from the house. The solark has to be at the house where the...
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