diy solar

diy solar

Recent content by jasonhc73

  1. jasonhc73

    Another Cargo Trailer setup.

    Using it for the first time this season (mid-March, 2024) the LV2424 was pulling ~750 watts from the panels.
  2. jasonhc73

    Putting an end on a big wire.

    Kind of a mind blown moment. Do read the comments. ?
  3. jasonhc73

    46165 Sodium Cells

    This doesn't make any sense. 480 grams for ONE 46165 cell. To make a 300 AH 12V battery, 16S4P, that one battery would weigh 30.7 KG just in cells. That's 122.9 KG for a 48V setup...
  4. jasonhc73

    Solar Assistant - data logger

    version 2023-08-16 is live.
  5. jasonhc73

    1500lbs of solar on fifth wheel roof?

    These ROOFs are rated to hold a 350lb owner standing on his feet. Now imagine how much pressure those roofs have on them when a 150lb pair of panels is spread out over 18 square feet.
  6. jasonhc73

    Old battery, cheap charge controller and broke PV panel.

    The battery is from 2018, new then, but has been 100% submerged in rainwater for two years, outside. The charge controller is the absolute cheapest Amazon PWM available, I think I paid $8.50 for it. The panel is a 72-cell panel, but half are disabled. I suspect a broken solder somewhere. It was...
  7. jasonhc73

    SOL-ARK 15K is so pretty

    I used this from TEMCo on eBay. https://www.ebay.com/itm/373522429654
  8. jasonhc73

    MPP LV5048 and LV6548 Only above 0 degrees Celsius?

    The hottest the inverter ever got was 84°C and then went into fail-safe. It only did this when it was asked to do 12kW. The vast majority(99.999%) of the time the entire system was 40°C or less.
  9. jasonhc73

    My next inverter! (Sol-Ark)

    I don't think it is worth anything. The only sort of "BMS" I can advocate for is an Active Balancer that has at least 1 amp of balancing. Now that I have the max Voltage set with the charge controller and the low Voltage cutoff controlled by the inverter, I don't use anything that the BMS has...
  10. jasonhc73

    Excess solar for EV charging - how to automate?

    You put the CTs for the Solarark on the line, you put the CTs for the Vue at the meter. This is how I have it right now. :)
  11. jasonhc73

    Excess solar for EV charging - how to automate?

    The "zero export" works the same way as the Vue, it still has to have a CT to know when to stop sending out to the grid.
  12. jasonhc73

    Excess solar for EV charging - how to automate?

    You can really get wrapped around the axel trying all these options or just use Emporia and a Net Meter. You said you are connected to the grid already.
  13. jasonhc73

    Excess solar for EV charging - how to automate?

    I use the Emporia Vue and Charger. It works exactly as expected. You set the EVSE to excess solar. When the Vue detects more than 1200 watts going out to the grid, the Vue signals the EVSE to turn on and charge the car. Every 240 watts more after that is another amp more to the EVSE. You...
  14. jasonhc73

    what should be the state of charge change so as not to damage battery

    Per Cell: 3.40 V max (90%) 3.15 V min (15%) Stay between and will last very very long.
  15. jasonhc73

    What happens (when/if) one MultiPlus in a parallel system fails?

    Parallel setups are for expanded capacity or syncing phases. Not for failsafe redundancy. If one fails, the entire system goes down, or that phase is offline, or back to a single operation. I'm guessing 120V...
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