diy solar

diy solar

Recent content by Roel

  1. Roel

    Super Capacitor

    @toms thank you. I have attached the two batteries I use. 2 banks 48V about 37-38kw each, 2V x 24S and 8V x 6S x 6P. Could you have a look at the max surge load for these? Thank you
  2. Roel

    Super Capacitor

    You all rock. Thank you
  3. Roel

    Super Capacitor

    Yes 3000F per cap and 125F overall. Thank you for confirming my thoughts on higher voltage caps being just fine. But I wonder if forking out 900-1000 USD for one or more of these is worth it and whetter it will provide anything better then just using 38kw battery bank.
  4. Roel

    Super Capacitor

    I was looking at a Maxwell array with individually managed batteries, 64V for 48V bank with the idea that sometimes voltage may be at 5x V. However someone, who is also quite versed in capacitors said that 64V capacitors in such a setup may end up not working well with the inverter due to the...
  5. Roel

    10-30 second whole house capacitor/battery

    In a fully offgrid system, do loads usually get driven by the battery via the inverter, or by the solar directly? (when using an all-in inverter which has PV + battery + inverter + etc all in one)
  6. Roel

    Super Capacitor

    Talking about Farad's, would a 64V 125F super capacitor be a good thing to hook into parallel with a 48V battery bank? Someone commented that 1) the capactity is very low, 2) the higher voltage of the super capacitor may create issues for the inverter, 3) the package is very expensive.
  7. Roel

    Super Capacitor

    So there is really no point in having a super capacitor in parallel with the battery? Interesting unit. What's inside? A large capacitor?
  8. Roel

    Super Capacitor

    Would they increase the surge capability of a battery bank and stress it out less if placed in parallel with the batteries?
  9. Roel

    Multiple Inverters in Parallel: PV setup?

    Thank you. One bank of batteries is 2V (24S=48V), the other bank is 8V (6S6P=48V). https://www.nzmcd.co.nz/features/1903/the-technical-guide-for-lead-crystal-batteries https://trailercamperaustralia.com.au/electrical/12v-batteries/lead-crystal-batteries.html Really wondering if a battery...
  10. Roel

    Multiple Inverters in Parallel: PV setup?

    Would you recommend a battery balancing system for lead crystal batteries?
  11. Roel

    Multiple Inverters in Parallel: PV setup?

    Thank you. Where would I find the best angles? Is there a website calculator or mapping system somewhere?
  12. Roel

    Multiple Inverters in Parallel: PV setup?

    Ah good point. Summer production will be many times more then what we need. Even a 10kw setup would easily cover us there (and there will be 25kw). Winter production borderline. Optimal angle in winter seems to be 29 (max) and optimal angel in summer 19 (min) degrees. So maybe I should just go...
  13. Roel

    Multiple Inverters in Parallel: PV setup?

    Local rules allow up to 5m high, so no issues there.
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