Optimal sizing of renewable hybrids energy systems: A review of methodologies Luna-Rubio, R. ; Trejo-Perea, M. ; Vargas-Vázquez, D. ; Ríos-Moreno, G. J. Abstract Publication: Solar Energy Pub Date: April 2012 DOI: 10.1016/j.solener.2011.10.016 Bibcode: 2012SoEn...86.1077L