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Can net-zero carbon be a cost-effective enabler of water and energy self-sufficiency?

2026-04Artigo científico Acesso aberto
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dc.contributor.authorDias, Luís P.
dc.contributor.authorSeixas, Júlia
dc.contributor.institutionCENSE - Centro de Investigação em Ambiente e Sustentabilidade
dc.contributor.institutionDCEA - Departamento de Ciências e Engenharia do Ambiente
dc.contributor.pblElsevier
dc.date.accessioned2026-05-18T13:07:01Z
dc.date.available2026-05-18T13:07:01Z
dc.date.issued2026-04
dc.descriptionPublisher Copyright: © 2026 The Author(s).
dc.description.abstractWater and energy services are key for cities’ healthy development, but their integrated management has been limited. Cities decarbonization requires fully integration of water and energy systems to prevent policies and solutions with limited benefits or even with negative trade-offs. Municipal water-system (i.e. water supply, consumption and wastewater) was integrated into the energy-system optimization model (TIMES_CityWE) to get explicitly connected water and energy flows and technologies. Optimal water-energy system configurations to deliver water and energy services for Cascais municipality in Portugal were generated up to 2050, with the goal to assess if and how net-zero carbon target and resources’ prices may act as enablers of local resources cost-effectiveness. Net-zero goal leads to efficient technologies, delivering 16% less water and 20% less energy consumed in the residential sector in 2045, compared with the absence of net-zero target. Notably, water efficient technologies show cost-effectiveness to reduce both water and energy consumption, while enhance resource self-sufficiency. Achieving net-zero carbon in 2045 requires a reconfiguration of the current energy system with 33% of the total final energy demand and 26% of water demand fulfilled by local sources, a significant increase from 2015 (6% and 13% respectively), clearly demonstrating net-zero carbon targets serve as enablers of water and energy self-sufficiency. Integrated water and energy systems modelling captures combined positive effects to optimize future configurations, providing support to better local policies.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent12
dc.format.extent4563912
dc.identifier.doi10.1016/j.seta.2026.104930
dc.identifier.issn2213-1388
dc.identifier.otherPURE: 162748908
dc.identifier.otherPURE UUID: 93b97775-b118-45d7-9a45-c1f8f68c757f
dc.identifier.otherScopus: 105032731505
dc.identifier.otherWOS: 001727014400001
dc.identifier.otherORCID: /0000-0003-0355-0465/work/215055652
dc.identifier.urihttp://hdl.handle.net/10362/203181
dc.identifier.urlhttps://www.scopus.com/pages/publications/105032731505
dc.identifier.urlhttps://www.webofscience.com/wos/woscc/full-record/WOS:001727014400001
dc.language.isoeng
dc.peerreviewedyes
dc.subjectCity decarbonization
dc.subjectNet-zero
dc.subjectTIMES modelling
dc.subjectWater-energy nexus
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectEnergy Engineering and Power Technology
dc.subjectSDG 6 - Clean Water and Sanitation
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleCan net-zero carbon be a cost-effective enabler of water and energy self-sufficiency?en
dc.typejournal article
degois.publication.firstPage1
degois.publication.lastPage12
degois.publication.titleSUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
degois.publication.volume88
dspace.entity.typePublication
rcaap.rightsopenAccess

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