Operational benefit of transforming cascade hydropower stations into pumped hydro energy storage systems

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buir.contributor.authorToufani, Parinaz
buir.contributor.authorNadar, Emre
buir.contributor.authorKocaman, Ayse Selin
buir.contributor.orcidToufani, Parinaz|0000-0003-4632-9226
buir.contributor.orcidNadar, Emre|0000-0002-9904-4243
buir.contributor.orcidKocaman, Ayse Selin|0000-0001-8345-5999
dc.citation.epage104444-11en_US
dc.citation.spage104444-1en_US
dc.citation.volumeNumber51en_US
dc.contributor.authorToufani, Parinaz
dc.contributor.authorNadar, Emre
dc.contributor.authorKocaman, Ayse Selin
dc.date.accessioned2023-02-24T06:58:17Z
dc.date.available2023-02-24T06:58:17Z
dc.date.issued2022-07
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThis study evaluates the potential benefit of retrofitting existing conventional cascade hydropower stations (CCHSs) with reversible turbines so as to operate them as pumped hydro energy storage (PHES) systems. We examine the energy generation and storage problem for a CCHS with two connected reservoirs that can be transformed into a PHES system in a market setting where the electricity price can be negative. We formulate this problem as a stochastic dynamic program (SDP) under uncertainty in the streamflow rate and electricity price. We analytically derive an upper bound on the profit improvement that can be obtained from the PHES transformation. We conduct numerical experiments with data-calibrated time series models and observe that the PHES system provides a greater benefit under more limited streamflow conditions or more frequently observed negative prices.en_US
dc.description.provenanceSubmitted by Bilge Kat (bilgekat@bilkent.edu.tr) on 2023-02-24T06:58:17Z No. of bitstreams: 1 Operational_benefit_of_transforming_cascade_hydropower_stations_into_pumped_hydro_energy_storage_systems.pdf: 804965 bytes, checksum: 1d39814d4c2783008dace4f60f7ef7c3 (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-24T06:58:17Z (GMT). No. of bitstreams: 1 Operational_benefit_of_transforming_cascade_hydropower_stations_into_pumped_hydro_energy_storage_systems.pdf: 804965 bytes, checksum: 1d39814d4c2783008dace4f60f7ef7c3 (MD5) Previous issue date: 2022-07en
dc.identifier.doi10.1016/j.est.2022.104444en_US
dc.identifier.eissn2352-1538
dc.identifier.issn2352-152X
dc.identifier.urihttp://hdl.handle.net/11693/111672
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.est.2022.104444en_US
dc.source.titleJournal of Energy Storageen_US
dc.subjectCascade hydropower stationsen_US
dc.subjectNegative electricity pricesen_US
dc.subjectPumped hydro energy storageen_US
dc.subjectStochastic dynamic programen_US
dc.subjectStreamflow rateen_US
dc.titleOperational benefit of transforming cascade hydropower stations into pumped hydro energy storage systemsen_US
dc.typeArticleen_US

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