Calculating solar radiation for horizontal surfaces—I. Theoretically based approaches

• Autores: J. E. Hay
• Localización: Renewable energy, ISSN 0960-1481, Vol. 3, Nº 4, 1993, pág. 357
• Idioma: inglés
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• Resumen

  • This paper reviews the theoretical basis of relatively simple models that use widely available meteorological data to determine the solar irradiation at the earth's surface. Spectral and non-spectral models for clear and cludy sky conditions are considered. A sample of validation results is presented. These indicate that most of the models studied are capable of estimating the global irradiation with acceptable accuracy, especially for time intervals of a month of more.