Nthoiwa, Ndakidzilo
(Botswana International University of Science and Technology, 2017-08)
Botswana has about 84 % of its land area as part of the semi-arid Kalahari desert and it experiences over 320 clear sky days per annum, with a solar insolation of 21 MJ/m2 per day on a horizontal flat surface. This favors ...