@article{fdi:010081021,
  title = {{A}ssessing hydropower flexibility for integrating solar and wind energy in {W}est {A}frica using dynamic programming and sensitivity analysis. {I}llustration with the {A}kosombo reservoir, {G}hana},
  author = {{D}anso, {D}. {K}. and {F}rancois, {B}. and {H}ingray, {B}. and {D}iedhiou, {A}rona},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he flexibility of hydropower plants with large reservoirs is frequently exploited to integrate large shares of variable and intermittent renewable energy sources in electricity systems. {I}n this study, we assess the flexibility that could be provided by large hydropower reservoirs in {W}est {A}frica to cope with planned future solar and wind energy generation in the region. {R}eservoir operations are estimated via {D}ynamic {P}rogramming with the objective to minimize the variability of the residual demand that commonly needs to be supplied by conventional generation means at high monetary and carbon costs. {T}he analysis framework is demonstrated for the {A}kosombo hydropower reservoir in {G}hana for which a number of future scenarios of increased electricity demand are considered. {D}ifferent combinations of solar and wind energy development are considered to match the increase in demand. {T}he results show that the {A}kosombo hydropower reservoir can smooth out the variability of the residual electricity demand when the increase in electricity demand is below 25% and the corresponding contribution of solar and wind energy to the total electricity generation does not exceed 20%. {F}or larger increases in demand and thus larger solar and wind generation, the {A}kosombo reservoir cannot fully smooth-out the variability of the subsequent residual demand, although, the performance varies with the relative contribution of solar and wind in the energy mix. {H}owever, we found that the use of an additional short-term storage helps to further reduce the variability of the residual demand.},
  keywords = {{R}enewable energy integration ; {O}ptimal mix ; {S}olar and wind energy ; {H}ydropower operations ; {R}esidual demand variability ; {W}est {A}frica ; {GHANA} ; {AKOSOMBO} {BARRAGE}},
  booktitle = {},
  journal = {{J}ournal of {C}leaner {P}roduction},
  volume = {287},
  numero = {},
  pages = {125559 [17 ]},
  ISSN = {0959-6526},
  year = {2021},
  DOI = {10.1016/j.jclepro.2020.125559},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081021},
}