Solar-PCE: [Data collection & analysis]
  1. Excel is never needed, but can be readily used.
  2. Raw data and calculated results are written in formatted-CSV. Easy to read.
  3. Easier to plot in Excel.
  4. Modifications are always possible (compared to commercial programs).
  5. Better algorithm for calculations which reduces the data dependency errors.
  6. Cells for testing can be selected precisely.
  7. Curves are plotted and saved in a PDF/PNG file along with results Table (1 page).
  8. An approximated version of Rs & Rsh are calculated and reported.