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  • Post in thread: Bulletproof Off-grid System Recommendations?

    Yes, we've been in the cabin for several years now and I have a spot for a ground mounted rack picked out. I'm calculating PV potential with location specific calculators. Luckily we wired the cabin to code when we built it with the idea of installing a full solar power system in the future...
  • Post in thread: VOC, VMP, LSC, and matching your array to your inverter...

    I'm hoping someone can confirm or correct my understanding of how to match your solar array strings to your charger/inverter. This is what I think is true: Use VOC to make sure you do not exceed your inverter's capacity. Panel VOC x number of panels in your string x 1.2 (a rough constant to...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    That sounds like a success story to me. I also have a gundfos soft start well pump currently in place. We run a propane stove, water heater and refrigerator and use about 100-125 gallons of propane a year with our seasonal usage. Totally hear you about keeping power needs modest and...
  • Post in thread: EG4 18k, MPPT Range, and PV Array Design

    Understood, thanks. I will probably end up upsizing the array. My needs are pretty modest at the present — maybe 4-5kwh a day -- but I anticipate them growing as I eventually convert propane appliances to electric, and the 18K unit gives me some future headroom. Also it‘s quiet and seems to...
  • Post in thread: VOC, VMP, LSC, and matching your array to your inverter...

    Thanks for your response and this addition. This addition seems pretty important since, say, my panel's IMP is 11 amps and my inverter has a max usable input current of 17 amps and a max short circuit input current of 25 amps (like the eg4 6000xp), even though I could theoretically parallel the...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    I would rather not move the batteries seasonally, and don't have a place to store them in my apartment :). I think I will either completely shut them down or take the plunge and build a heater box and keep the system up.
  • Post in thread: Bulletproof Off-grid System Recommendations?

    Thanks, will check out Midnite and Samlex.
  • Post in thread: EG4 18k, MPPT Range, and PV Array Design

    I have a newbie question about MPPT range. I am planning an off-grid solar power system using an EG4 18K. I was thinking of installing a 10-panel array of Blue Sun Bi-Facial panels, model BSM460M-72HBD. The ground mount array will be approximately 100 yards from the inverter, so I am looking...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    I'm definitely planning on 48V LFP batteries. Your usage sounds a lot like ours. We are there (northern Vermont) most of the time between early May and late October. We don't really use it off season as we drain out the water at the end of the season and we would have to snowshoe in to stay...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    Hi, I have been researching DIY solar for a few weeks now as I am contemplating installing a full solar power system in my off-grid seasonal cabin, and I'm hoping to get some candid feedback from this community. Then more I research relatively inexpensive all-in-one units from Growatt, EG4...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    Thanks very much for the detailed reply. You confirm my suspicions! Yes, I've done an energy/solar audit and those figures are designed for max usage and three days autonomy during October in my area, which is the latest we will be there. Unfortunately, remote monitoring will not be an...
  • Post in thread: Why separate PV isolator for 6000XP?

    I am considering installing a EG4 6000XP. Reading through the manual I noted that it stipulates the installation of a separate PV circuit breaker/isolator switch in addition to one integrated into the unit. Why? Seems like the integrated switch is being touted as a convenience and money saver...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    That's great to hear. It looks like SolArk has a 5k option as well. It seems like my system requirements are about half of yours all around, so that may be a great option. I was definitely thinking ground mount bi-facials for my set up as well. I'm very interested in your power shed -- do...
  • Post in thread: Bulletproof Off-grid System Recommendations?

    I hear you but am concerned about temps dropping below 0 degrees C and would rather avoid the complication of a heating pad/box if possible.
  • Post in thread: Bulletproof Off-grid System Recommendations?

    It's true, I could trust in the dual low temp charging protection and just let it do its thing...
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