X
 
  • Time
  • Show
Clear All
new posts
  • Dellyjoe
    Junior Member
    • May 2013
    • 13

    #1

    polycarbonate vs. acrylic glass vs. glass panel

    hello everyone this might be a silly question, but it is what is stopping me from buying my glass for my solar panels so i would like a answer so i can get to work.


    I went out to look for glass for my solar penal and i came across that polycarbonate blocks out UV rays from the sun which idk if that means less sun light that will hit the solar cells.
    if this is so then i will not buy polycarbonate but if not then i really think i should.

    i will go with acrylic as a back up unless someone else has a better idea.


    And last quesion if you made your own solar panels what glass did you use, and where did you get it from.

    Thanks,

    Joe
  • Mike90250
    Moderator
    • May 2009
    • 16020

    #2
    Plain glass also blocks UV too. But that's not the issue with plastics.
    micro scratches, crazing and water vapor are the plastics issues.
    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    solar: http://tinyurl.com/LMR-Solar
    gen: http://tinyurl.com/LMR-Lister

    Comment

    • Dellyjoe
      Junior Member
      • May 2013
      • 13

      #3
      Originally posted by Mike90250
      Plain glass also blocks UV too. But that's not the issue with plastics.
      micro scratches, crazing and water vapor are the plastics issues.
      i mean what would you go for, plastic or like some type of glass.

      Comment

      • inetdog
        Super Moderator
        • May 2012
        • 9909

        #4
        Originally posted by Dellyjoe
        i mean what would you go for, plastic or like some type of glass.
        Glass, unless there is an overriding cost or weight reason. Or you know the panels will be attacked by eagles dropping rocks.

        UV will not hurt the panels, so absorbing it is neither a plus nor a minus. And the heat will be the same since absorbing the UV in the plastic or in the panel will still produce heat in the same place.
        SunnyBoy 3000 US, 18 BP Solar 175B panels.

        Comment

        • russ
          Solar Fanatic
          • Jul 2009
          • 10360

          #5
          glass for sure
          [SIGPIC][/SIGPIC]

          Comment

          • Mike90250
            Moderator
            • May 2009
            • 16020

            #6
            glass has higher thermal conductivity than plastics, so the innards will be cooler.
            Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
            || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
            || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

            solar: http://tinyurl.com/LMR-Solar
            gen: http://tinyurl.com/LMR-Lister

            Comment

            • Dellyjoe
              Junior Member
              • May 2013
              • 13

              #7
              Originally posted by Mike90250
              glass has higher thermal conductivity than plastics, so the innards will be cooler.
              Ok I will look into the best place to buy glass at . Thank you all for all the information you have given me I have much to learn

              Comment

              • russ
                Solar Fanatic
                • Jul 2009
                • 10360

                #8
                Originally posted by Dellyjoe
                Ok I will look into the best place to buy glass at . Thank you all for all the information you have given me I have much to learn
                We all have much to learn about something!
                [SIGPIC][/SIGPIC]

                Comment

                Working...