solar panel not putting out amps

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • grumpybear
    Junior Member
    • Nov 2013
    • 12

    #16
    suggestions taken

    after careful considerations and suggestions from everyone here I have killed the idea of running a heater all the time
    I have switched out all my Florissant lights and replaced them with led bulbs { installed all new fixtures }
    so I went from using 616 watts of lighting to 120 watts and I plan on using a small propane heater that I already have which only uses 120 watts to run and only for about 15 min max
    with that said I will only need 120 watts for about 4 hours per day an 120 watts for 30 min a day and the occasional use of power tools
    also I am switching to a 24 volt system . I have relocated cc and bb and now will only have a 48 foot run and plan on using 4 awg wire to a junction box where all the panels will tie into that will get me down to a voltage drop of 2.96%
    the panels will be switched to 6 awg wire to achieve this also

    did not get to test panels today due to lack of sun . cloudy day but will do so before everything is permanently installed

    i am possibly testing the panels for amps the wrong way also so that could be my fudge factor

    i do appreciate all the help given here and have learned allot in the past few days
    so hopefully i am on a better track than i was lol

    thanks again to everyone for your help
    still learning about solar

    Comment

    • grumpybear
      Junior Member
      • Nov 2013
      • 12

      #17
      panel output amps

      finally got some good sunshine to test my panels
      all three panels are putting out 5 amps
      all checked individuealy
      will do further testing before final install

      now on to the next newbie question
      if i go to a 24 volt setup ( from what i understand so far )
      i will need to series my panels in pairs then parallel the pairs to keep it at 24 volts correct ?
      i haven't read a way to series 3 panels and end up with only 24 volts i always come up with 36 instead

      thanks again for all the help
      still learning about solar

      Comment

      • Naptown
        Solar Fanatic
        • Feb 2011
        • 6880

        #18
        or move to an mppt controller.
        5 amps at 24V = 120W with two panels
        Go to Mppt and you can use the third panel
        Actual is 130W x 3 x.95= 370 watts
        With PWM amps in = amps out
        With MPPT watts out =watts in - about 5%
        NABCEP certified Technical Sales Professional

        [URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]

        [URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)

        [URL="http://www.gaisma.com"]www.gaisma.com[/URL]

        Comment

        • grumpybear
          Junior Member
          • Nov 2013
          • 12

          #19
          thanks

          ill look into that
          thanks for the suggestions and help
          still learning about solar

          Comment

          Working...