Solar Position Algorithm for Solar Radiation Applications ...

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Revised January 2008 NREL/TP-560-34302 Solar Position Algorithm for Solar Radiation Applications Ibrahim Reda and Afshin Andreas National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a Department of Energy LaboratoryOperated by Midwest Research Institute Battelle Bechtel Contract No. DE-AC36-99-GO10337 Revised January 2008 NREL/TP-560-34302 Solar Position Algorithm for Solar Radiation Applications Ibrahim Reda and Afshin Andreas Prepared under Task No. WU1D5600 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a Department of Energy LaboratoryOperated by Midwest Research Institute Battelle Bechtel Contract No.

in solar zenith and azimuth angle calculations, and some are only valid for a specific number of years[1]. For example, Michalsky’s calculations are limited to the period from 1950 to 2050 with uncertainty of greater than ± 0.01 / [2], and the calculations of Blanco-Muriel et al.’s are limited to the period from 1999 to 2015 with

  Applications, Calculation