Thin Film Solar, Specs. please help

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  • bejoysgp
    Junior Member
    • Jun 2010
    • 1
    #1

    Thin Film Solar, Specs. please help

    Hi I am new to solar panels.
    recently i saw a thin film panel and it shows Rated Voltage Vmpp (V)-100V
    normal crystalline panels shows Voltage as 24V. What is the difference? are these thin film panels good.
    Tags: thin film
    • Mike90250
      Moderator
      • May 2009
      • 16020
      #2
      Welcome !

      Panels can be made in a wide range of voltages, 3V and up ! highest I've seen before was 90V, but with Grid Tie inverters wanting 350 -350VDC to run from, higher voltage panels have their place.

      Thin film is OK, ages faster than mono/poly crystalline cells, and is less efficient per square foot, so you would need a larger array for the same wattage.

      Bad choice if you want a 12 or 24 V system, even though the larger MPPT controllers can down convert the voltage, that large of a change, gives a litter higher conversion loss.
      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

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