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solar simulation software

hot_rodhot_rod Posts: 11,269Member
PolySun or T-sol, does anyone have an opinion or preference?/
Bob "hot rod" Rohr
trainer for Caleffi NA
The magic is in hydronics, and hydronics is in me


  • ABSolarABSolar Posts: 41Member
    software choices

    Retscreen & Pathfinder assistant are all I can afford....
  • Karl_NorthwindKarl_Northwind Posts: 139Member
    Restcreen and excel

    I just built an excel calculator that gives numbers to input to the "percent of month used" and temperature ranges, and have gotten numbers very close  (within a couple of percent) of what polysun and tsol have given.

    it's essentially just a cheat for retscreen to let retscreen do what it does, only with more detailed loads month to month.

  • FortunatFortunat Posts: 103Member
    I use Polysun


    I use Polysun (designer) but haven't used T sol so I can't make a real comparison. The first couple years with Polysun were frustrating because it was still rather buggy, especially in the english units, but it seems to have improved and as they add more US hardware it gets better and better.

    The designer version is very powerful (but also rather expensive). We're happy with it overall though; my only big frustration at this point is that when I make a new template in designer mode, my colleague (who has just the light version) can't even open it. So in the light version you are stuck with just the generic templates that come with the software.

    As I said, I've seen reports from T sol, but never used it myself so I can't actually give you a comparison.

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