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Solar Electric
Last 24 Hours
13 Weeks of Daily Production
Monthly Production
System Details

Solar Thermal
Last 24 Hours
13 Weeks of Daily Production
Monthly Production
Daily Solar Thermal System's COP
Daily Solar Energy Separated by Use
Daily Thermal Energy Usage
Average Daily Usage vs. the Weather
13 Weeks of Year-to-Date Usage
Real-Time Annimated System
System Details
How it Works

Sun
Last 24 hours of Irradiance
13 weeks of Daily Irradiance
Today's Solar Azimuth and Elevation
Daily Sunrise and Sunset Times
Latest Solar Atmosphere Pix (171Å)

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13 Week Sunrise and Sunset Chart

Chart updated at 12:49:27 AM Friday 15-Nov-19 (UTC - 0800)

13 Week Sunrise and Sunset Chart

Sunrise and sunset times are calculated for the our location which is 44.1° N and 122.8° W. The most interesting time of the year is around the winter soltice where the effects due to the Equation of Time are apparent.