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Calculated Distances:

  • a) Post to Post distance: 200cm
  • b) Back to Front (inter-row spacing): 200cm
  • c) Front to Front (front of first panel to front of second): 200cm

Important Information:

  1. Pick location on map or enter latitude and longitude
  2. Enter tilt angle and overall panel height
  3. Default date (2010-12-22) and default time (12:00 PM) result in a minimum spacing to ensure zero shading at noon on the day when the sun is at the lowest angle of the year.
  4. GMT - Greenwich Mean Time. Used in calculation of sun angle. Call RBI Solar with questions.
  5. Disclaimer - The RBI Solar Calculator is provided as an estimating tool for the user. Final layout and design for any solar installation may require more detailed analysis to determine optimum output.


Sun Angle:
Module Tilt Angle:
Incident Angle:
Module Length:
Post to Post Distance: