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. Periodicals of Engineering and Natural Sciences, [S. l.], v. 11, n. 1, p. 74–90, 2025. DOI: 10.21533/pen.v11.i1.79. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/79. Acesso em: 29 oct. 2025.