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Collection of tools to know and work with solar energy. Calculation of: sun position, latitude longitude coordinates, photovoltaic systems, emissions CO
_{2}.
  Economic analysis of a photovoltaic system, with the determination of payback and chart. 
  Calculation of sun’s position in the sky for each location on the earth at any time of day. Azimuth, sunrise sunset noon, daylight and graphs of the solar path. 
  Measure emissiones of CO_{2} per kWh of energy produced, or emissions in g/km of your car. Enter the kWh produced by a year the nation’s electricity mix. 

  Units measurement conversion: Length Area Volume Mass Force Power Energy Time Temperature Angle Speed Flow Acceleration Pressure Electrical Luminance ... 
  Measure on google map: latitude longitude coordinates DD DMS, address and location, distance (km, meters, mile, foot), area, poliline, circle, perimeter. 
  Drag the marker on map to calculate distance (km, meters, mile, foot) and bearing angle of direction on google map, between two points of the earth. Calculation of average speed or time spent. 
  Conversions latitude longitude geographic coordinates, in all formats: decimal, sexagesimal, GPS DD DM DMS degrees minutes seconds, search by clicking on map. 
  Calendar of sunrise sunset noon daylight of the sun at any location on the planet for an entire year. The table shows the time and azimuth in degrees. 
  Here you can building your sundial in a few minutes, get coordinates, declination and the dimension. 
  View and manage GPS track and waypoints on map, formats GPX, KML, KMX, TCX, CSV, Select your file and automatically will be process. 
  This section lists the FAQ (Frequently Asked Questions) on photovoltaic systems and in general the sources of renewable energy. 
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