Robust Decision-Making in the Water Sector

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dc.creatorKalra, Nidhi Rajiv
dc.creatorGroves, David G.
dc.creatorBonzanigo, Laura
dc.creatorMolina Perez, Edmundo
dc.creatorRamos, Cayo
dc.creatorCarter, Brandon
dc.creatorRodriguez Cabanillas, Iván
dc.date2015-11-05T15:53:12Z
dc.date2015-11-05T15:53:12Z
dc.date2015-10
dc.date.accessioned2026-07-01T00:50:30Z
dc.descriptionHow can water resource agencies make smart investments to ensure long-term water reliability when the future is fraught with deep climate and economic uncertainty? This study helped SEDAPAL, the water utility serving Lima, Peru, answer this question by drawing on state of the art methods for decision making under deep uncertainty. These methods provide techniques for evaluating the performance of a water system over a wide range of plausible futures and then developing strategies that are robust across these futures. Rather than weighting futures probabilistically to define an optimal strategy, these methodologies identify the vulnerabilities of a system and then evaluate the key trade-offs among different adaptive strategies. Through extensive iteration and collaboration with SEDAPAL, the study used these methods to define an investment strategy that is robust, ensuring water reliability across as wide a range of future conditions as possible while also being economically efficient. First,on completion, the study helped SEDAPAL realize that not all projects included in the Master Plan were necessary to achieve water reliability, and the utility could save 25 percent (more than $600 million) in investment costs. Second, the study helped focus future efforts on demand-side management, pricing, and soft infrastructure, a refocusing that is difficult to achieve in traditional utility companies. Third, the study helped SEDAPAL gain the support of regulatory and budget agencies through the careful analysis of alternatives. Fourth, the study allowed the utility to postpone lower priority investments, and to analyze future options based on climate and demand information that simply is not available now.
dc.formatapplication/pdf
dc.formattext/plain
dc.identifierhttp://documents.worldbank.org/curated/en/2015/10/25153429/robust-decision-making-water-sector-strategy-implementing-lima’s-long-term-water-resources-master-plan
dc.identifierhttps://hdl.handle.net/10986/22861
dc.identifierhttps://doi.org/10.1596/1813-9450-7439
dc.identifier.urihttp://hdl.handle.net/123456789/411800
dc.languageEnglish
dc.languageen_US
dc.publisherWorld Bank, Washington, DC
dc.relationPolicy Research Working Paper;No. 7439
dc.rightsCC BY 3.0 IGO
dc.rightshttp://creativecommons.org/licenses/by/3.0/igo/
dc.rightsWorld Bank
dc.subjectSANITATION
dc.subjectWATER QUALITY
dc.subjectSUPPLY OF WATER
dc.subjectWATER MANAGEMENT SYSTEM
dc.subjectWATER SUPPLIES
dc.subjectFLOW
dc.subjectSOURCES OF WATER
dc.subjectWATER DISTRICT
dc.subjectDAMS
dc.subjectWATER SECTOR
dc.subjectINDUSTRY
dc.subjectWATER UTILITY
dc.subjectWATER SYSTEMS
dc.subjectHYDROLOGY
dc.subjectPROGRAMS
dc.subjectWATER SUPPLY
dc.subjectRIVER BASINS
dc.subjectWATER RESOURCE
dc.subjectDECISION MAKERS
dc.subjectRESERVOIRS
dc.subjectAVAILABILITY OF WATER
dc.subjectTREATMENT PLANTS
dc.subjectWATER SHORTAGES
dc.subjectGROUNDWATER SOURCES
dc.subjectFLOOD MANAGEMENT
dc.subjectDEMAND MANAGEMENT POLICIES
dc.subjectSTAKEHOLDER INVOLVEMENT
dc.subjectWATER CONSUMPTION
dc.subjectRECYCLED WATER
dc.subjectWATER RESOURCES
dc.subjectWATER MANAGEMENT STRATEGIES
dc.subjectWATER SYSTEM
dc.subjectWATER STORAGE
dc.subjectMUNICIPAL AUTHORITIES
dc.subjectWATER MANAGEMENT
dc.subjectFLOOD RISK MANAGEMENT
dc.subjectWATER RESOURCE MANAGEMENT
dc.subjectPOPULATION GROWTH
dc.subjectWATER TREATMENT
dc.subjectINDUSTRIAL WATER
dc.subjectBASINS
dc.subjectWATER MANAGEMENT MODEL
dc.subjectCONSTRUCTION
dc.subjectWATER MANAGEMENT AGENCIES
dc.subjectWATER MANAGEMENT DECISION
dc.subjectWATER USE
dc.subjectWATER
dc.subjectWATER RESOURCES MANAGEMENT
dc.subjectSUSTAINABLE WATER
dc.subjectDOMESTIC USES
dc.subjectRAINFALL
dc.subjectDESALINATION
dc.subjectSCIENCES
dc.subjectPOLLUTION
dc.subjectGLACIERS
dc.subjectHYDROLOGIC CONDITIONS
dc.subjectCLIMATE WARMING
dc.subjectRESEARCH
dc.subjectGROUNDWATER BASINS
dc.subjectSTREAMFLOW
dc.subjectSERVICE AREA
dc.subjectRUNOFF
dc.subjectMUNICIPAL WATER SUPPLY
dc.subjectWASTEWATER
dc.subjectSTORAGE CAPACITY
dc.subjectWATER TRANSFER
dc.subjectECOSYSTEM
dc.subjectWATERSHEDS
dc.subjectLEAD
dc.subjectCLIMATE CHANGE
dc.subjectDROUGHT
dc.subjectWATER USES
dc.subjectSUSTAINABLE WATER SUPPLY
dc.subjectFRESHWATER
dc.subjectRIVER BASIN
dc.subjectDEMAND FOR WATER
dc.subjectUTILITIES
dc.subjectINDUSTRIAL WATER DEMAND
dc.subjectWATER DEMAND
dc.subjectSYSTEMS
dc.subjectCANALS
dc.subjectFLOOD RISK
dc.subjectWATER BANKING
dc.subjectDECISION MAKING
dc.subjectRIVERS
dc.subjectCOMPETITION FOR WATER
dc.subjectFLOW CONDITIONS
dc.subjectWATER RESOURCES PLANNING
dc.subjectWASTE STREAMS
dc.subjectBROAD RANGE
dc.subjectWATER UTILITIES
dc.subjectWATER SOURCES
dc.subjectLAKES
dc.subjectWATER AGENCIES
dc.subjectWATER TREATMENT PLANT
dc.subjectWATER FLOWS
dc.subjectWATER NEEDS
dc.subjectIRRIGATION
dc.subjectSTATISTICS
dc.subjectWATERSHED
dc.subjectGROUNDWATER
dc.subjectAGRICULTURAL RUNOFF
dc.subjectDELTAS
dc.subjectURBAN RUNOFF
dc.subjectWATER SUPPLY PROJECTS
dc.subjectFLOOD CONTROL
dc.subjectWATER POLLUTION
dc.subjectDEMAND MANAGEMENT
dc.subjectWATER INFRASTRUCTURE
dc.subjectINVESTMENT COSTS
dc.subjectCOST SAVINGS
dc.subjectEVAPORATION
dc.subjectWATER LEVELS
dc.subjectMUNICIPAL WATER
dc.titleRobust Decision-Making in the Water Sector
dc.titleA Strategy for Implementing Lima’s Long-Term Water Resources Master Plan
dc.typeWorking Paper
dc.typeDocument de travail
dc.typeDocumento de trabajo

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