U.S. Solar Radiation Maps

Download 30 Year Average Solar Radiation North-South Axis PDF

PDF

Manual and Data Tables
- From the U.S. Government Office of Scientific and Technical Information (OSTI); a black & white scan of the hardcopy manual and data tables. (23.9MB)

Compressed Files
- Macintosh compression format (192MB)
- Unix compression format (255MB)
- PC compression format (192MB)

Individual PDFs

Manual (5.5MB)

State/Territoy Data Tables
Tables include the "Averages of solar radiation for each of the 360 months during the period of 1961-1990" and "30-year (1961-1990) average of monthly solar radiation".

Alabama (3.5MB)
Alaska (14MB)
Arizona (3.5MB)
Arkansas (2MB)
California (8.5MB)
Colorado (5.5MB)
Connecticut (5MB)
Delaware (1MB)
Florida (6MB)
Georgia (5.5MB)
Hawaii (3.5MB)
Idaho (2MB)
Illinois (4.5MB)
Indiana (3.5MB)
Iowa (3.5MB)
Kansas (3.5MB)
Kentucky (3MB)
Louisiana (3.5MB)

Maine (2MB)
Maryland (1MB)
Massachusetts (2MB)
Michigan (11MB)
Minnesota (4.5MB)
Mississippi (2MB)
Missouri (3.5MB)
Montana (7.5MB)
Nebraska (4.5MB)
New Hampshire (1MB)
New Jersey (2MB)
New Mexico (2MB)
New York (6MB)
Nevada (5MB)
North Carolina (5MB)
North Dakota (2.5MB)
Ohio (6MB)

Oklahoma (2MB)
Oregon (7.5MB)
Pacific Islands (1MB)
Pennsylvania (6.5MB)
Puerto Rico (1MB)
Rhode Island (1MB)
South Carolina (2.5MB)
South Dakota (3.5MB)
Tennessee (4.5MB)
Texas (14.5MB)
Utah (2MB)
Vermont (1MB)
Virginia (4.5MB)
Washington (4.5MB)
West Virginia (2.5MB)
Wisconsin (4.5MB)
Wyoming (4.5MB)

Maps
- PV Collector Performance Maps
  Interactive maps on NREL's Internet Map Server; to view the "Solar Radiation Data Manual for Flat-Plate and Concentrating Colectors" tables, uncheck "Launch PVWATTS v.2", check collector-type data table to view. Zoom in (maginfying glass with "+"), then select Hot link tool (lightning bolt); click on area of interest.
  
  (For information about NREL'S PVWATTS PV performance calculator, see http://www.nrel.gov/rredc/pvwatts.)
Data Files in ASCII Text Format
Averages of solar radiation for each of 360 Months, 1961-1990 for 239 U.S. sites; and thirty-year averages of monthly solar radiation, 1961-1990 for 239 U.S. sites

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