According to the source, global horizontal irradiation (GHI) is the long-term amount of solar resource available on a horizontal surface on Earth. Figures represent the average for the country territory.
Additional information regarding the methodology can be found .
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Latin America: global horizontal radiation, by country
With a long-term global horizontal irradiation (GHI) of nearly *** kilowatt hours per m² per day, El Salvador was the Latin American country with the largest theoretical solar photovoltaic potential in 2020. Within South America, Chile led the ranking, with a GHI of **** kilowatt hours per m². Figures represent the sum of direct and diffuse solar irradiation components received by a horizontal surface, but do not consider other environmental conditions or a specific power plant design and mode of operation. Meanwhile, the Andean country also had the largest average solar PV practical potential in the Latin American region.
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Solargis, & World Bank, & ESMAP. (June 1, 2020). Global horizontal radiation (GHI) in Latin America and the Caribbean as of 2020, by country (in kilowatt hours per square meter per day) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1219251/global-horizontal-radiation-latin-america-country/
Solargis, und World Bank, und ESMAP. "Global horizontal radiation (GHI) in Latin America and the Caribbean as of 2020, by country (in kilowatt hours per square meter per day)." Chart. June 1, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1219251/global-horizontal-radiation-latin-america-country/
Solargis, World Bank, ESMAP. (2020). Global horizontal radiation (GHI) in Latin America and the Caribbean as of 2020, by country (in kilowatt hours per square meter per day). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1219251/global-horizontal-radiation-latin-america-country/
Solargis, and World Bank, and ESMAP. "Global Horizontal Radiation (Ghi) in Latin America and The Caribbean as of 2020, by Country (in Kilowatt Hours per Square Meter per Day)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Jun 2020, /statistics/1219251/global-horizontal-radiation-latin-america-country/
Solargis & World Bank & ESMAP, Global horizontal radiation (GHI) in Latin America and the Caribbean as of 2020, by country (in kilowatt hours per square meter per day) ÌÇÐÄÆƽâ°æ, /statistics/1219251/global-horizontal-radiation-latin-america-country/ (last visited July 31, 2026)
Global horizontal radiation (GHI) in Latin America and the Caribbean as of 2020, by country (in kilowatt hours per square meter per day) [Graph], Solargis, & World Bank, & ESMAP, June 1, 2020. [Online]. Available: /statistics/1219251/global-horizontal-radiation-latin-america-country/
