Article (Scientific journals)
Integrating climate-driven hydropower variability into long-term energy planning: A Bolivian case study under El Niño and La Niña scenarios
Fernandez Vazquez, Carlos Ariel Alejandro; Mendoza Paz, Santiago; Hannotte, Adele et al.
2026In Renewable and Sustainable Energy Reviews, 226, p. 116250
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Keywords :
Energy modeling; Energy planning; Hydro availability; ENSO events; Climate change; Bolivia
Abstract :
[en] As climate change effects become more evident worldwide, particularly regarding the variation in hydro resources availability, quantifying their potential impacts is critical to enable adequate adaptation strategies and facilitate planning efforts. In this sense, countries heavily reliant on hydropower must assess and integrate the implications of this variability to ensure a reliable electricity supply. Considering Bolivia as a case study, the impact of alternative hydro availability scenarios is evaluated through the analysis of extreme weather conditions associated with El Niño and La Niña events. To this end, a modeling framework is presented that combines global precipitation projections downscaled to a local level, with which three scenarios (Control, El Niño, and La Niña) are developed for 2030, 2040, and 2050. These scenarios are later analyzed using a cost-optimization energy model tailored to Bolivia, developed with PyPSA-Earth, which allows the representation of region-specific conditions with hourly resolution, both for hydro resources availability and electrical components. Results indicate that both El Niño and La Niña events can reduce hydropower availability significantly, by up to 37 % compared to average years, with neither of them being strictly linked to a higher reduction in hydropower generation. Regarding the operation of the system, it is seen that Bolivia’s legacy power plants can handle hydrological variability until 2040. However, the decommissioning of fossil capacity by 2050 significantly increases system vulnerability. As a result, deployment of flexible technologies and battery storage will play a key role in addressing both long-term capacity adequacy and short-term flexibility.
Disciplines :
Energy
Author, co-author :
Fernandez Vazquez, Carlos Ariel Alejandro  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Mendoza Paz, Santiago
Hannotte, Adele
Balderrama, Sergio;  UMSS - Universidad Mayor de San Simón
Crespo del Granado, Pedro;  NTNU - Norwegian University of Science and Technology
Quoilin, Sylvain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Language :
English
Title :
Integrating climate-driven hydropower variability into long-term energy planning: A Bolivian case study under El Niño and La Niña scenarios
Publication date :
January 2026
Journal title :
Renewable and Sustainable Energy Reviews
ISSN :
1364-0321
eISSN :
1879-0690
Publisher :
Elsevier
Volume :
226
Pages :
116250
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 September 2025

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