Page 127 - Design of Solar Thermal Power Plants

2.10 GLOBAL DIRECT NORMAL IRRADIANCE DISTRIBUTIONS 113

solar irradiation is mainly distributed in five regions of the Sunbelt. These
regions are the Mediterranean and Northern Africa, South Africa, China
and India, Latin America, and Australia. Fig. 2.21 shows the recent global
map of satellite-based annual DNI by Solargis.

FIGURE 2.21 Global and district annual direct normal irradiation (DNI) distribution:
(A) global annual DNI, (B) Europe and Central Asia annual DNI, (C) Latin America and
Caribbean annual DNI, (D) Middle East and North Africa annual DNI, (E) South Asia annual
DNI. From SolarGis company website (https://solargis.com/maps-and-gis-data/download/) © 2017
The World Bank, Solar resource data: Solargis