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contributor authorAntonia Durán
contributor authorMarcel Favereau
contributor authorÁlvaro Lorca
contributor authorSebastián Vicuña
contributor authorÓscar Melo
contributor authorMatías Negrete-Pincetic
date accessioned2024-12-24T10:09:04Z
date available2024-12-24T10:09:04Z
date copyright7/1/2024 12:00:00 AM
date issued2024
identifier otherJWRMD5.WRENG-6349.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4298391
description abstractClimatic phenomena, particularly hydrological droughts, have led to significant changes in reservoir operation strategies. Multipurpose reservoir operations are essential for effectively managing stored water resources for various activities like electricity generation and agricultural irrigation. Despite considerable efforts to support decision making for each economic activity, there remains a weak integration across these sectors in joint analyses. To address this, an integrated approach combining a model of a large power system and a model at the basin scale is proposed to analyze the operation of both power and agricultural systems. This approach allows evaluation of the operating policies of a multipurpose reservoir and its performance at both the local and regional scales under different hydrological scenarios. A modification is implemented whereby the priority of water extraction to agricultural users is increased. Its effects are assessed for different hydrological trajectories in a case study in the Laja Lake basin in southern Chile, the biggest Chilean basin with a capacity of up to 5,500  Hm3. The Laja Lake, a multipurpose reservoir with substantial hydroelectric generation capacity and extensive agricultural areas plays a crucial role in the operation of the national power system. Based on an analysis of 2025, it is demonstrated that hydrological changes directly impact electrical and agricultural performance. Drought conditions increase thermal generation, costs, emission intensity, and water deficits. Furthermore, the policy modification reveals tradeoffs between the power sector’s emissions and agricultural water deficits. For drier scenarios, increasing agricultural extraction priority results in low additional operational costs and emissions from the power system, which supports adopting a policy aligned with netzero objectives.
publisherAmerican Society of Civil Engineers
titleEvaluation of Multipurpose Reservoir Operating Policies at Basin and Electric Power System Scales
typeJournal Article
journal volume150
journal issue7
journal titleJournal of Water Resources Planning and Management
identifier doi10.1061/JWRMD5.WRENG-6349
journal fristpage04024021-1
journal lastpage04024021-16
page16
treeJournal of Water Resources Planning and Management:;2024:;Volume ( 150 ):;issue: 007
contenttypeFulltext


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