The service from the U.S. National Renewable Energy Laboratory (NREL) provides access to a database of solar radiation available at locations within the United States. The National Solar Radiation Database (NSRDB) lists recorded solar energy readings from a wide range of weather stations. Data are summarized based on readings captured 1991-2005 using the Typical Meteorological Year (TMY) methodology.
API methods support search for solar radiation data for a location specified by latitude and longitude. Results can be restricted to specific fields such as date and time of recordings, specific recording station, solar conditions such as zenith and illumination, and weather conditions like precipitation and barometric pressure.
The following is a list of how-to and tutorial content that matched your search term. ProgrammableWeb's how-to content comes from two sources; full-blown tutorials that we publish ourselves and other highly relevant tutorials that we find elsewhere on the Web. This list represents on combination of both tutorial types and if you go to ProgrammableWeb's API University, you'll not only be able to find more, they are organized based on your role (API providers or developers who consumes APIs). If you know of a tutorial that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.