Highest wattage / m2?

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  • hustlerinc
    Junior Member
    • Sep 2012
    • 4
    #1

    Highest wattage / m2?

    Hi, I'm looking at solar panels for a limited space.
    I know I'm usually supposed to determine how much watt i need before deciding on a panel. But I have to do it the other way around.
    So with current technology whats the best solution to get as much watt as possible on a limited space? And about how much can I get?

    I would prefer decent thin film solar over big chunky panels, so tips on those are appreciated aswell.
    Tags: None
    • billvon
      Solar Fanatic
      • Mar 2012
      • 803
      #2
      Originally posted by hustlerinc
      So with current technology whats the best solution to get as much watt as possible on a limited space?
      The Sanyo HIT panels are among the highest; around 16.1% efficiency by panel. So that's approximately 161 watts per sq m. The HIT Bifacials will work with reflected light as well. Thus if it is mounted over a reflective surface (snow for example) you could hit around 200 watts under ideal conditions.

      I would prefer decent thin film solar over big chunky panels, so tips on those are appreciated aswell.
      Thin film panels do not come close to crystalline in efficiency.

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        • Naptown
          Solar Fanatic
          • Feb 2011
          • 6880
          #3
          Look also at Sunpower modules I believe these have the highest energy density. I personally don't like the Sanyo's as they have a shorter warranty and use a combination of thin film and hard cells to reach the density.
          NABCEP certified Technical Sales Professional

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            • hustlerinc
              Junior Member
              • Sep 2012
              • 4
              #4
              Originally posted by billvon
              Thin film panels do not come close to crystalline in efficiency.
              Yeah I know, but since I'm designing the system starting with the panels then figuring out what I can use it's not too much of a problem.
              Planning this on the roof of a car/RV so a big panel isn't as good looking as an "invisible" thin film on the roof. Also it doesn't bring as much attention as a panel would.

              Originally posted by Naptown
              Look also at Sunpower modules I believe these have the highest energy density. I personally don't like the Sanyo's as they have a shorter warranty and use a combination of thin film and hard cells to reach the density.
              Just took a look at them, but they don't seem to have any partners near me, and apparently it's the only way to get them. Which is a shame since I liked them.

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