Author(s): Isidro A. Pilares-Hualpa, Roberto Alfaro

Linked Author(s): Roberto Alfaro-Alejo

Keywords: Optimization; Climate change; WEAP; Economic benefits; Reservoir operation;

Abstract: The main aim of this research work is to apply an optimization model for the management under climate scenarios of the multipurpose Lagunillas Integral System, located in the Peruvian Altiplano using the WEAP linear programming methodology that satisfies the water demand of the system. In this optimization, concepts such as financial analysis were used, comparing the cost-benefit ratio processed by the WEAP allocation algorithm and evaluating the water supply preference options for each project and that due to these economic reasons will have the highest priority. The process of generation of scenarios for the modeling of the system was made in the first place under real conditions with historical information and under the influence of climate change considering the climate projection of greater influence CANESM2-RCP4.5 and CNRM_CMI4.5 and considering 3 scenarios of operation: 1) Running only reservoir Lagunillas; 2) Running reservoir Lagunillas with water transfer from the Verde river and 3) Running reservoir Lagunillas and reservoir Verde river. The results obtained for the first scenario, show that the Cabanilla and Cabanilla - Chatapujio Project have the highest net benefits, for the other scenarios, the net benefits increase. The optimization with proposed linear programming shows that in addition to increasing the efficiency of water use in reservoirs, the levels of volume stored in the Lagunillas and Verde reservoirs are maintained more uniformly. Likewise, with the optimization it is possible to satisfy the demands raised to 100% with the operating scenario of the two reservoirs of Lagunillas and Verde river.

DOI: https://doi.org/10.3850/38WC092019-0504

Year: 2019