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  • Prinler
    Junior Member
    • Mar 2011
    • 13

    #1

    Solar Newbie!

    I have some questions regarding my solar panels and equipment as well as what i need to get moving.

    My background: I work for a government contractor, my job is maintaining solar sites on a government installation. Maintaining doesn't need me to have any knowledge at all of whats actually going on tho.

    One day i got an order to take down several sites (unneeded) and dispose of everything at the hazmat yard. I purchased the solar panels on the cheap and now have a handful of panels. A analog gage, battery, inverter and solar saver 10 controller.

    Lots of ideas going on in my head what i could do with them but first i need a crash coarse in how to get the specs i need to configure it. I remember all the cables went into a box with a lot of diodes and round things. Some stuff with heat sinks on them. Im assuming i don't need that box seeing i have a new solar controller. My job was simply to use a multimeter to check for voltages and to make sure it was charging and the battery CCA was in good shape.

    I currently have 2 panels hooked together and i get around 17 volts I figured out a way to hook it to the gages to show amps but i dont think i did it right (shows low amps). Its all hooked to the solar controller with the battery and no load devices. I have checked and the battery is topped off nice. Im not planning on using batteries.

    My ultimate goal? To slow my meter more and more as i add panels and wind energy.

    So if your on board where do we start?
  • Prinler
    Junior Member
    • Mar 2011
    • 13

    #2
    Photo's

    This is a photo of the whole system minus battery.

    This is a photo of the meters with the battery connected.

    This is a photo of the meters with out the battery

    This is a photo of the backside of the meters

    Comment

    • russ
      Solar Fanatic
      • Jul 2009
      • 10360

      #3
      No stickers or names on the panels?

      Milspec number?
      [SIGPIC][/SIGPIC]

      Comment

      • Prinler
        Junior Member
        • Mar 2011
        • 13

        #4


        Im worried as you can see the optimal current is 3 amps and my gage only says .5 amps?

        Comment

        • Naptown
          Solar Fanatic
          • Feb 2011
          • 6880

          #5
          You might want to start with cleaning the bird poo off of them.
          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

          • Prinler
            Junior Member
            • Mar 2011
            • 13

            #6
            LOL, good observation but i doubt alittle spot is gonna take away 2 amps.

            Any ideas? perhaps i have the gage hooked up wrong?

            Comment

            • Naptown
              Solar Fanatic
              • Feb 2011
              • 6880

              #7
              Originally posted by Prinler
              LOL, good observation but i doubt alittle spot is gonna take away 2 amps.

              Any ideas? perhaps i have the gage hooked up wrong?
              I'm not kidding clean them that is creating hard shadows that may be enough to degrade the output.
              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

              • donatosd
                Junior Member
                • Mar 2011
                • 12

                #8
                partial shading

                Originally posted by Prinler
                LOL, good observation but i doubt alittle spot is gonna take away 2 amps.

                Any ideas? perhaps i have the gage hooked up wrong?
                Shading of as little as 9% of the entire surface array of a PV system can, in some circumstances, lead to a system-wide power loss of as much as 54%

                http://www.renewableenergyworld.com/...-happens-54551

                Comment

                • Prinler
                  Junior Member
                  • Mar 2011
                  • 13

                  #9
                  Ok clean as a whistle, didnt change one bit....

                  Comment

                  • Prinler
                    Junior Member
                    • Mar 2011
                    • 13

                    #10
                    I just for a bunch more panels, i hope to hook them up this weekend! Let you know what happens

                    Comment

                    • Mike90250
                      Moderator
                      • May 2009
                      • 16020

                      #11
                      Take a panel, by itself, and measure it's amps, in full sun. If the panels clean up nice, and the cells all look nice and blue, tab wires still shiney, no brown or burnt spots, they should be working
                      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

                      • Prinler
                        Junior Member
                        • Mar 2011
                        • 13

                        #12
                        UPDATES! I finally broke down today and did what i could ... Found that i had to rewire each panel cause i found one that was not wired right. I found that at a dead short im getting around 10 amps at 14.4 volts. So 143watts total? Ouch! Any ideas on how to make them do better? Other then cleaning them? Thats next! Sun went down to fast!








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