(credit: Hugh Ahlenius, UNEP/GRID-Arendal Maps and Graphics Library).
(solar insolation in kWh/m2/day)
Suphan Buri and Kanchanaburi, that have high radiation all year.
Source: World Climate Research Program data Available from the NASA Langley DAAC
Source : World Climate Research Program data Available from the NASA Langley DAAC
When solar radiation is transmitted to Earth, it has dispersed to different locations, so different areas have various solar energy potential. The map of the world's solar energy potential of a NASA showed range of radiation in Thailand about 5.0 - 6.5 kWh/m2 per day
Thailand has an area of 500,000 square kilometers. Giving its location, Thailand’s weather and temperature represents the equatorial regions climate. If you use the solar energy only 1 percent of the total area per year, it is equal to energy 700 million tons of oil. World demand for oil showed a continued increase, causing high energy cost and not to mention the depletion in the future. The production of electricity from sun is an alternative way in solving the energy crisis because there are no production costs.