Technical-economic evaluation of a portable solar machine of potential use in pumping systems and water purification, through the use of photovoltaic solar technology for non-interconnected areas in Colombia. Period. Eng. Nat. Sci. [Internet]. 2025 Jan. 21 [cited 2025 Nov. 25];11(1):74-90. Available from: https://pen.ius.edu.ba/index.php/pen/article/view/79