The Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors is available on the RReDC in HTML and PDF format. Individual PDF files are available for the main body of the manual and for each of the 50 states, the Pacific Islands (Guam) and Puerto Rico. Compressed files containing the individual PDFS for the manual and the site data tables can be downloaded in three compression formats: PC, Macintosh and Unix. Maps derived of the data represented in the tables are also available for viewing.

Please Note: This publication is out of print.

• HTML Format

  The main body of manual is available as HTML; individual site tables are presented as flat files. Hyperlinks to listings of
  individual site tables are provided at bottom of the Table of Contents.

• PDF
  • Manual and Data Tables (25MB)
    Available from the U.S. Government Office of Scientific and Technical Information (OSTI); a black & white scan of of the hardcopy manual and data tables.

  
  

  • 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
  
  • The Atlas for the Solar Radiation Data Manual for Flat-Plate and Concentrating Collectors
  
  
  • 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://rredc.nrel.gov/solar/calculators/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