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Formulas
FormulasFormulas for use with the Solar Pathfinder
For the Solar Industry
To Estimate Shading of a Rooftop/Pole Mount on the Future Site
![[formula image]](/images/spf/rooftop-pole.gif)
![[formula image]](/images/spf/rooftop-formula.gif)
Excel Spreadsheet with Calculations (XLS)
PDF Instructions for Spreadsheet (PDF, 1.8 MB)
Note: PDF files require Adobe Acrobat Reader.
For the Solar Industry
To Estimate Needed Pole Height to Avoid Shading
![[formula image]](/images/spf/pole_height_equation.gif)
For Landscaping / Golf Course Management
To Estimate How Much to Crop Tree to Avoid Shading
![[formula image]](/images/spf/tree-top-diagram.gif)
![[formula image]](/images/spf/tree-top-formula.gif)
The Solar Pathfinder
The Solar Pathfinder has been the standard in the solar industry for solar site shade analysis for decades. Its panoramic reflection of the site instantly provides a full year of accurate solar/shade data...
Solar Pathfinder Assistant Software
The thermal plug-in for version 4 is now available and performs all calculations for thermal heating systems! PV and ecological shade analysis calculations are in the Basic SPA.