Helioclim-3 Forecast

Last update: Jan. 2017

    Presentation - Services - Inputs - Outputs - Validation - Automatic access - Orientation of tilted planes - Plane mode

Presentation

This service provides HelioClim-3 version 4 radiation values estimated from satellite imagery for the current and the next day.

Day "d": More information Persistence Forecast (HelioClim-3 version 4 radiation values in real time and forecast until the end of the current day)

Day "d+1": More information Similarity Forecast (HelioClim-3 version 4 radiation values for the next day)

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Orientation of tilted planes

Firstly, the SoDa azimuth convention is:

   Azimuth (degrees) Orientation
North
90° East
180° South
270° West
    

So orientation checking is :

  • A tilted plane is north oriented if azimuth < 90° or azimuth > 270°
  • A tilted plane is south oriented i: azimuth > 90° and azimuth < 270°

NB: A plane which is not facing the sun might either be a human error, or may also be due to infrastructure or environmental needs (site north oriented).

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Plane mode               

(More information on plane orientations and radiation components)  

         Plane mode Tilt (degrees) Azimuth (degrees) Albedo Animations
June 21st Dec. 21st
Horizontal Plane 0 NA NA See animated GIF See animated GIF
Fixed tilted plane <user setting> <user setting> <user setting> See animated GIF See animated GIF
2D Sun Tracking (DNI) Sun Tracking Sun Tracking <user setting> See animated GIF See animated GIF
1D Sun Tracking (North-South axis) Sun Tracking 90° or 270° <user setting> See animated GIF See animated GIF
1D Sun Tracking (East-West axis) Sun Tracking 0° or 180° <user setting> See animated GIF See animated GIF
1D Sun Tracking (Tilt tracking) Sun Tracking <user setting> <user setting> See animated GIF See animated GIF
1D Sun Tracking (Azimuth tracking) <user setting> Sun Tracking <user setting> See animated GIF See animated GIF

 

 

 

 

 

 

 

 

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