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(335W x20 panels) + (340W x15 panels) = 11.8 kW system?

Discussion in 'Tesla Energy' started by Dukeybootie, Jan 28, 2021.

  1. Dukeybootie

    Dukeybootie Member

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    Sorry for the dumb question, just something I never bothered to ask. Are there any conversion factors involved in calculating the total size of the PV system? Or do you just add up all the panels and their capacities?
     
  2. LoudMusic

    LoudMusic Member

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    Watts is watts. Add 'em up! :)
     
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  3. nwdiver

    nwdiver Well-Known Member

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    True... but what most people want is wh. You get ~15% fewer wh/yr if those watts face East instead of South. So Location and Orientation are big factors that determine production.
     
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  4. mspohr

    mspohr Well-Known Member

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    Yep... simple math. Just add up the watts. This is the labelled peak for your system.
    However, your actual peak production (W) and your daily/yearly Wh will vary with a lots of things such as clouds, snow, time of year, sun exposure etc.
     
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  5. charlesj

    charlesj Active Member

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    How large are your inverters on each? That may limit you as well. Also, the published panel capability is based on a "flash" testing, not real world capability. But, I suppose the total will be more in line with other system quotes.
     
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