Strategic decision making based on energy rates and costs from Itaipu's Multinational Energy Agreement Perspective

Franciscato, Bruno Rodrigues Fernandes; Udaeta, Miguel Edgar Morales; Gimenes, André Luiz Veiga; Prado, Fernando Amaral de Almeida

doi:10.1016/j.esr.2022.100967

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…In the LMB, at least 129 dams have been commissioned, including five mainstem dams in Laos. Hydropower dams in the LMB provide capacity for >30,000 megawatts (MW) of power generation, with estimated revenue of US$160 billion from all projects by 2040 [31]. One of the primary areas for hydropower dams in the LMB is the Sekong, Sesan and Srepok Rivers (3S Basin), which are a major tributary to the LMB (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

Khoeun,

Sor,

Chann

et al. 2024

Preprint

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The Lower Mekong Basin has had extensive hydropower dam development, which changes hydrologic conditions and threatens the exceptional aquatic biodiver-sity. This study quantifies the degree of hydrologic change between pre-impact (1965-1968) and post-impact (2018-2021) peak hydropower development in two major tributaries of the Lower Mekong Basin, the Sekong River with the fewest dams and the Sesan River with the most dams. Both rivers historically supported migratory fishes. We use daily pre- and post-impact data and the Indicators of Hydrologic Alteration framework to evaluate streamflow changes from dam development. We found signifi-cant changes in low and high magnitude flows in the pre- and post-impact periods of dam development. For the Sekong River, minimum flow had large fluctuations that ranged 290% to 412% more than the pre-impact period, while the Sesan River ranged 120% to 160% more than pre-impact. Dry season flows increased by 200±63% on av-erage in the Sekong River, which is caused by releases from upstream dams. Mean-while, Sesan River dry season flows increased by 100±55% on average. This study in-dicates that seasonal flow changes and extreme flow events occurred more frequently in the two basins following dam construction, which may threaten the ecosystem func-tions.

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Section: Introductionmentioning

confidence: 99%

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

Khoeun,

Sor,

Chann

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

Khoeun,

Sor,

Chann

et al. 2024

Sustainability

View full text Add to dashboard Cite

The Lower Mekong Basin has had extensive hydropower dam development, which changes its hydrologic conditions and threatens the exceptional aquatic biodiversity. This study quantifies the degree of hydrologic change between pre-impact (1965–1968) and post-impact (2018–2021) peak hydropower development in two major tributaries of the Lower Mekong Basin—the Sekong River, with the fewest dams, and the Sesan River, with the most dams. Both rivers have historically supported migratory fishes. We used daily pre- and post-impact data and the Indicators of Hydrologic Alteration framework to evaluate streamflow changes from dam development. We found significant changes in low- and high-magnitude flows in the pre- and post-impact periods of dam development. For the Sekong River, minimum flow had large fluctuations, with increases of 290% to 412% compared to the pre-impact period, while the Sesan River’s minimum flow ranged from 120% to 160% more than pre-impact. Dry season flows increased by 200 ± 63% on average in the Sekong River, which was caused by releases from upstream dams. Meanwhile, the Sesan River’s dry season flows increased by 100 ± 55% on average. This study indicates that seasonal flow changes and extreme flow events occurred more frequently in the two basins following dam construction, which may threaten the ecosystem’s function.

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Strategic decision making based on energy rates and costs from Itaipu's Multinational Energy Agreement Perspective

Cited by 2 publications

References 10 publications

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

The Impacts of Dams on Streamflow in Tributaries to the Lower Mekong Basin

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