The Role of Hydropower in Climate-Resilient Energy Systems: Case Study of the Jeziorsko Reservoir (Poland).

cris.virtual.author-orcid0000-0001-9093-4365
cris.virtual.author-orcid0000-0002-5829-502X
cris.virtual.author-orcid0000-0001-6128-0315
cris.virtual.author-orcid0000-0001-5487-5871
cris.virtual.author-orcid0000-0003-1542-7413
cris.virtualsource.author-orcid1a97415b-d71c-4504-92c0-69469f9e5e82
cris.virtualsource.author-orcid25b4fea8-1bac-418e-b7bf-c26ec1e15244
cris.virtualsource.author-orcidab187d78-3916-499a-a077-9e8a0069cf71
cris.virtualsource.author-orcid78e28297-4e99-4a6f-9f0c-ceb6f723dbbd
cris.virtualsource.author-orcidbed3840b-ab35-45f1-8283-8bc44b52933a
dc.abstract.enHydropower supports the energy transition by providing flexible, low-carbon generation, yet its performance is increasingly constrained by climate-driven variability in water availability. This study quantifies long-term hydroclimatic changes in the Warta River–Jeziorsko reservoir system (central Poland) and assess their implications for water resources, hydropower generation, and reservoir operation. The analysis combines multi-decadal meteorological observations, daily river flows at the Sieradz gauge (1951–2022), and reservoir and plant operational records, with electricity production evaluated for 1995–2022. The results indicate significant warming and shorter snow-cover duration, while annual precipitation shows no consistent long-term trend. Hydrological drought has intensified, reflected by lower mean flows in recent decades and a strong increase in days with discharge below SNQ, particularly after 2015. Electricity production is highly variable and shows a significant downward trend, amplified by reduced usable storage following operating-rule changes. By linking long-term hydroclimatic indicators with site-specific operational and production data for a lowland multi-purpose reservoir under environmental constraints, this study provides evidence to support adaptive reservoir management balancing water security and hydropower reliability.
dc.affiliationWydział Inżynierii Środowiska i Inżynierii Mechanicznej
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Inżynierii Wodnej i Sanitarnej
dc.affiliation.instituteKatedra Chorób Wewnętrznych i Diagnostyki
dc.affiliation.instituteKatedra Chorób Wewnętrznych i Diagnostyki
dc.contributor.authorHammerling, Mateusz
dc.contributor.authorKałuża, Tomasz
dc.contributor.authorPilarska, Agnieszka
dc.contributor.authorGraczyk, Dariusz
dc.contributor.authorKonieczny, Kacper
dc.date.access2026-03-09
dc.date.accessioned2026-03-09T10:20:32Z
dc.date.available2026-03-09T10:20:32Z
dc.date.copyright2026-03-07
dc.date.issued2026
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_act
dc.description.financecost5977,66
dc.description.if3,2
dc.description.number5
dc.description.points140
dc.description.versionfinal_published
dc.description.volume19
dc.identifier.doi10.3390/en19051359
dc.identifier.issn1996-1073
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/7737
dc.identifier.weblinkhttps://www.mdpi.com/1996-1073/19/5/1359
dc.languageen
dc.pbn.affiliationenvironmental engineering, mining and energy
dc.relation.ispartofEnergies
dc.relation.pagesart. 1359
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enhydropower
dc.subject.enrenewable energy
dc.subject.enclimate change water
dc.subject.enavailability
dc.subject.endrought
dc.subject.enadaptive reservoir management
dc.titleThe Role of Hydropower in Climate-Resilient Energy Systems: Case Study of the Jeziorsko Reservoir (Poland).
dc.title.volumeSpecial Issue Renewable and Sustainable Energy in Light of Energy Transition Processes—3rd Edition
dc.typeJournalArticle
dspace.entity.typePublication