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  • Is this Sol-Ark setup possible?

    I’m planning on building a 48v solar system, but tied to the grid to dump excess output or pull from when needed. I’m in southern California, so unfortunately the only approved option is the Sol-Ark AIO inverters. Here’s what I’d like to accomplish below. when sun is out: 1. power house with PV...
  • cost for PV labor install only

    I'm contracting a local solar company to install solar panels only because I'm not ably to physically hold one and climb up a ladder doing this solo. I picked larger higher wattage panels thinking less panels means lower install cost, but they still charge by cost per watts at 0.$70. I'm...
  • max batteries in parallel

    I'll be using 8x SOK 48v batteries with a Sol-Ark 15k hybrid inverter. Is there a maximum number of batteries I can hook up in parallel because of any limitations, such as cable or bus bar size? The inverter has 2 battery terminals, and the manual states that 275A of battery charge/discharge if...
  • EG4-LL missing breaker

    This is a screenshot of Signature Solar's very own video on youtube, you can clearly see it has that white breaker. However on the website it seems like the EG4-LL doesn't have the breaker. Which one is correct? The EG4-LiFePower4 48v seems like it still has it though. But EG4-LL is the higher...
  • abusing Time Of Use rates

    Here are my utility’s rates based on Time Of Use (TOU): $0.42/kwh - on peak (4pm - 9pm) $0.07/kwh - super off peak $0.07/kwh (12am - 6am) Hypothetically speaking, if I just got 1 solar panel just so utility company can approve NEM to sell back to the grid, would there be any technical or...
  • bifacial panel production from the backside

    These ZnShine 540W bifacial panels produces an astonishing 540w output for the size. Initially I assumed that this included the backside and ideal conditions, like properly mounting it a couple feet off the ground and snow or white surface. But from looking at the datasheet, it looks like this...
  • Hooking up a power supply to MPPT solar charger’s PV input

    I’m building a portable DIY power station with 8S LiFePO4 batteries (24v), with a Victron 100V/15A MPPT solar charge controller inside to charge the batteries. However I also want the option to charge this battery pack from the AC wall outlet. Can I wire both the solar panels and THIS 120v AC...
  • Best solution to add DC batteries to grid-tied micro inverters

    I have a coworker that currently has a 40-panel array that's grid tied, and now would like to add 48v rack batteries to the system. Doesn't know which microinverter was installed (I'm assuming enphase). He would like to sell excess stored energy back to the grid but only at peak times. What's...
  • AC or DC coupled PV setup for hybrid grid-tied?

    I’m building out a system to power my whole house to majority run off grid, but still want to be connected to the grid to pull from if ever needed, and to dump excess production from the oversized solar array. Panels output ~15kw, battery 30kwh, inverter is Sol-Ark 15k which can take both AC or...
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