Basic Solar Power Electrical Equations Explained! Beginner Friendly


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34 replies
  1. DIY Solar Power with Will Prowse
    DIY Solar Power with Will Prowse says:

    Time and time again, I see people putting themselves in potential danger because they do not understand the fundamentals. I really hope this video helps you guys! Understanding these topics is like a super power, and allows you to control your environment. I hope you enjoy the video 🙂

    Reply
  2. Ben D
    Ben D says:

    thank you, thank you. I have been designing a off grid solar and the charge controller amp output conversion from the solar panel input amps have been hanging me up. also is it common practice to series connect, say 3 panels, and series connect another 3 panels, then connect the 2 in parallel to bump up the volts for a 24v bank, but also bump up the amps to get out of the trickle charge low amps, or does the charge controller figure all this out?

    Reply
  3. Dey Guina
    Dey Guina says:

    You are not only expert in electricity your are very good in explaining things around ,in an out of the system thank you bro.. ill try to build my solar system buy one one of the materials i needed and wacth all your videos concerning newbie in solar system

    Reply
  4. Jade Krieman
    Jade Krieman says:

    Just started watching your video's, and I have a question, I want to have a power source from lithium batteries for my refrigerator when the electric is out. Not sure what to do for the build. Can you advise?

    Reply
  5. Harvey Payne
    Harvey Payne says:

    Thanks man. I finally got it and I realise what a huge saving can be made by recycling old lithium batteries. I got a great deal paying only £1.21 per amp hour for my batteries. With a victron 100ah battery you’d be paying £11.20 per amp hour. Tesla model s used battery £5.23 per amp hour at minimum spec. Tesla’s never go out of balance because they are so well made . It’s a good deal.

    Reply
  6. greggy weggy
    greggy weggy says:

    This will help me muddle through my solar system, at lest I'll check the C rate of our 12 x 2v battery bank and see if I can draw more that what the 200amp circuit breakers I installed on it will allow, It would be really nice if I can set my EV charger at * amps without tripping the breaker. Cheers

    Reply
  7. Jan Sugalski
    Jan Sugalski says:

    There is a lot of made-up terminology here which can only lead to more confusion. "Faradaic" ?? No need to throw this in. The efficiency of batteries was easily expressed for years without it.
    "2s2p"??This just complicates the jargon of technology. Besides this notation is already established in chemistry for the designation of atomic orbitals.

    Reply
  8. BIG DAN
    BIG DAN says:

    IF YOU HAVE SERIES CONNECTED SOLAR PANELS BUT EACH OF THE SOLAR PANELS HAS A POWER OPTIMIZER DO THEY ALL NOT WORK IF ONE IS SHADED? OR WILL ALL BUT THE SHADED ON WORK BECAUSE OF THE POWER OPTIMIZERS?

    Reply
  9. Jeff 1953
    Jeff 1953 says:

    Will, quick question how come no one uses landscape wire for their solar panels ( 12/2 10/2 ) it's UV resistant and made for outdoor use, plus much cheaper than solar wire.

    Reply
  10. Andreas Ryf
    Andreas Ryf says:

    Thanks for the good video.
    Just one correction, though:
    If you have high voltage on the pv side (75…150V) and battery voltage (12,24,48V) on the output of a charge controller, you are using an mppt, a DC-DC converter. Any decent mppt let's you limit the output current, it then is usually factory set to its max output current. Even if you oversize the pv array (oversize its peak power, but still remaining below the max voltage) the MPPT will limit the battery side output current to a set value, never above its maximum current. Its actually quite common or even recommended practice, to oversize the pv array when using an mppt, you lose only a little energy over peak insolation, but get more overall energy, without spending much more for a higher rated mppt.
    That applies only for decent mppt controller (Morningstar, etc.) , not for junk like EP-Whatever.

    Reply
  11. Retard Retard
    Retard Retard says:

    I don't know , that's why I'm watching your vid's . From what I can gather from them , close enough . Got to tell will , my mom a devout and father an degreed engineer couldn't do no better . You may struggle but ant going no where and that's fine with us . Hell , I would need a gun to do as well . Keep um coming , thanks be

    Reply
  12. Okimyhome
    Okimyhome says:

    Excellent👍 since I found your channel I’ve been binge watching your videos. Lots of great information and helping me understand solar. Thank you for sharing your knowledge 😀

    Reply
  13. Kim Young
    Kim Young says:

    Thanks Will! Very helpful! Question about configuration and balancing: Let's say I buy 8 LiFePO4 batteries for a system, each is 3.2V 100A, for a 12V system. I would wire it as 2S4P. I would think that I need to complete an 8S balance when I first get the batteries, yes?

    Later on, for a maintenance balance, would I just complete a 2S balance, with two 4P 12V batteries? Or do I have to complete an 8S balance again?

    Reply

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