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  1. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    How do you know what temperature was used when the solar panel was rated? I'm assuming that is where you are getting the 37.2C drop when assuming the 10F? (EDIT: Never mind: you got it from the 25C temp on the sticker minus -12.2C = 37.2C drop. Got it.
  2. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    Ok, so I'd need four of those DC breakers and four surge protectors. To wire, I bring the first string from the PV (+ & -) into the top of the breaker. The + & - are run out of the bottom of the breaker directly to line 1 (+ & -) DC input in the inverter. The surge protector is installed...
  3. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    So maybe a 15 amp breaker would work, considering most will only trip higher than the rating anyway.
  4. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    This calculator says 11.875 Amp breaker when inputting 5,700W, 600V, and 25 S.P. in calculator. https://www.allumiax.com/breaker-size-calculator
  5. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    I'm obviously new at this, so forgive my ignorance, but if each string has under 600 volts or 9 amps, it sounds like a 1000V breaker on each string is too much, unless it is the amp rating that I should focus upon.
  6. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    No, I'm running all strings in series. The volts will be between 500l-600 volts per string. Amps will be 9 amps per string.
  7. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    The panels have 8.97 max current in Amps, and I will be running all strings in series. The inverter max is 13.5A per string
  8. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    Wouldn't this one be better, since its 600Volts...
  9. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    My big question is if 1000V breakers and surge protectors for each string are too much given that each string is NOT supposed to be more than the following: Max. Input Power per MPPT [W]: 5700 Max. Input Voltage per MPPT [V]: 600 Max. Input Current per MPPT [A]: 13.5
  10. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    Ok, so I'd need four of those DC breakers and four surge protectors. To wire, I bring the first string from the PV (+ & -) into the top of the breaker. The + & - are run out of the bottom of the breaker directly to line 1 (+ & -) DC input in the inverter. The surge protector is installed...
  11. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    I think I'd need/go with a metal box for outside with some kind of grounding bar inside.
  12. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    That looks good. Can that box be mounted outside, or is that for inside only? I like the look of it. It looks like all of that would work for me, if I'm not correct, please say. However, the box doesn't look rated for outside, which is what I'd like. Do the surge protectors have fuses in them?
  13. R

    Help picking right lightning protection, fuses, and breakers for each of four strings

    So, as many of you know, I'm running 3 strings from the house and 1 string from an extended garage that will each carry a lot of DC current. All four strings will be running separately with 8AWG right up close to the inverter. I'd like to install a box next to the inverter with 4 inputs for the...
  14. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    In Raleigh, N.C., the lowest low in the last 3 years was: Oct. 2021 +42F Nov. 2021 +25F Dec. 2021 +28F Jan. 2022 +17F Feb. 2022 +27F Mar. 2022 +27 Oct. 2020 +48F Nov. 2020 +29F Dec. 2020 +24F Jan. 2021 +25F Feb. 2021 +23F Mar. 2021 +25 Oct. 2019 +40F Nov. 2019 +24F Dec. 2019 +27F Jan. 2020...
  15. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    It sounds like the ONLY real way to know, would be to wait for a really cold, full sun clear day and test the output with a voltage meter with the strings disconnected from the inverter. I honestly think that the online calculators are designed to play it too safe by suggesting far less panels...
  16. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    You would think the inverter would be designed to shut off when Volts peak to high.
  17. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    I may have to add a second inverter to scale it. Up to 4 can be added.
  18. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    -5 degrees F in Jan.1985, so that is VERY RARE
  19. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    Honestly, I don't think we got into single digits once this year. Would it be better to keep the inverter inside the house? The range inside the house is always 60-77 degrees F.
  20. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    So, you think 13 panels on one string, 14 panels on another, 14 panels on a third, and 16 panels on the last string would be too much?
  21. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    I live in central North Carolina. How do I know what temperature compensations to use? Besides, if I push the envelope, I will find out faster than anyone when there is a solar flare!!! BRHAHAHAHA I'm going to use the max 8 AWG wire for DC input and 6 AWG wire for AC output, so at least the...
  22. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    $1,778.26 Growatt MIN 11400TL-XH-US is one of the most up-to-date smart inverter solutions with battery-ready rooftop solar systems. It's of compact design and outstanding efficiency of 98.5%. • WiFi + LAN Integrated Communication Module + Tigo Transmitter Integrated • Battery Ready for DC...
  23. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    On grid system, 335W per panel, 13-16 panels per string, 4 strings, 9 amps each panel, the max amp input per string is 13.5A. Since I am running DC current from roof to inverter, I just wanted to know if some kind of combiner box with breakers or fuses would be required by the electric...
  24. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    But does the combiner box provide an extra level of security? Or would an inline fuse do the same and much cheaper at that????
  25. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    So, why is the maximum output of watts exactly half of what the maximum input of watts is on the inverter specs?
  26. R

    Am I required to use a fused/breaker combiner box and where can I put it?

    I'm running 3 DC strings from the house roof and 1 DC string from the exterior garage to the inverter at ground level. I cannot combine any of the strings because the Amps exceed specs. So, my question is whether or not I need and am required to run my strings into some kind of fused/breaker box...
  27. R

    Running DC PV Cables 60 Feet in Conduit Under Eve of Back of House vs In HOT ATTICK???

    Resistance Difference with DC PV Cables 65 Feet in Conduit Under Eve of Back of House vs In HOT ATTIC??? I'm NOT asking which is easier to install. I'm interested in knowing if the HEAT in an attic with DC cables in conduit will have more energy loss and it would be better to run it under the...
  28. R

    Help understanding ONE string for exterior garage (gable facing due South) Panels on both sides of roof

    As it turns out, the TIGO optimizers are supported by the Growatt inverter, so this would be the better option for monitoring: https://www.renvu.com/Tigo-TS4-A-O-PV-Module-Advanced-Add-on-Optimization I saw "TIGO" in the specs but had no clue what it meant and that it was a type of...
  29. R

    Help with Calculations for Solar System to Power One 3068 watts Asics Bitcoin Miner

    The thing that I found out quickly is that batteries made zero sense for me since I'm connected to the grid. Using the grid to store any extra solar power capacity just made most economical sense. Because an industrial miner pulls over 3000W 24/7, I knew that I had to have nearly a 20kW system...
  30. R

    Help with Calculations for Solar System to Power One 3068 watts Asics Bitcoin Miner

    This Growatt hybrid inverter does appear to be stackable. Go to 6:9 (page 36) and you will see. Also, go to 13:1 and look at the bottom of the chart. "Scalability is up to 4." https://docs.google.com/viewer?srcid=1P1nlpKecNPl_OFEcakGEfpVt0QyDe1ER&pid=explorer&embedded=true...
  31. R

    Help understanding ONE string for exterior garage (gable facing due South) Panels on both sides of roof

    Like you said: "Each power optimizer transmits its module’s performance data over the DC power line. When using a SolarEdge inverter, these signals are received by the inverter and can be used for maintenance and remote monitoring. To monitor the modules when using a non-SolarEdge inverter, add...
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