UO Solar Radiation Monitoring Laboratory

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Northwest Solar Resource Maps

The links below are to full-size maps of Washington, Oregon, Idaha, and parts of Montana and Wyoming. These maps show average monthly and annual values for global horizontal, direct normal, and diffuse irradiance for the area. The averages were computed using hourly data modeled from satellite photographs taken from 1998 through 2002. A description of how the data are produced is in the Final Report: Solar Resource GIS Database for the Pacific Northwest using Satellite Data.

DVDs with 5 years of hourly data are available for Oregon, Washington, or Idaho at $125 each. Five years of daily total data from all Pacific Northwest locations is also available for $125. Contact the UO SRML for more information.

Annual solar radiation
Global horizontal Direct normal Diffuse

Monthly global horizontal radiation
January February March
April May June
July August September
October November December

Monthly direct normal radiation
January February March
April May June
July August September
October November December

Monthly diffuse radiation
January February March
April May June
July August September
October November December

Image map links to top of page and home page
Link to top of page Link to home page
© 2004, UO Solar Radiation Monitoring Laboratory.
Last revised: February 17, 2004.


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