Evaluation of hydro-wind complementarity in the Brazilian territory by means of correlation maps

Cantão, Maurício Pereira; Bessa, Marcelo Rodrigues; Bettega, Renê; Detzel, Daniel Henrique Marco; Lima, João Marcos

doi:10.1016/j.renene.2016.10.012

Cited by 96 publications

(43 citation statements)

References 5 publications

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“…The ρ h g product is the specific weight of water, which depends on the water temperature, but varies very little over the temperature range that a watercourse usually presents and is approximately constant [25]. For complementarity studies, the head h can be considered constant, especially because SHP plants have a small or even null water storage capacity [12,13,26]. Consequently, the product ρ h gh can be understood as a constant (K h ) and the Equation (3) can be rewritten as P h = K h Q (4)…”

Section: Hydro Energymentioning

confidence: 99%

“…In general, authors apply a statistical analysis-such as Pearson correlation coefficient [8,[10][11][12][13], graphical analysis [6,8,11,12], cross-correlation analysis [14], coherence analysis [10], Spearman correlation coefficient [13]-and/or a method to minimize functions, e.g., storage costs and mismatch energy [11,15] or the standard deviation of the renewable mix generation [8].…”

Section: Introductionmentioning

confidence: 99%

“…[10] studied the relationship between hydropower generation and offshore wind potential for the country, and Ref. [13] considered hydro and onshore wind in their analysis. No study focusing on Rio de Janeiro State was found.…”

Section: Introductionmentioning

confidence: 99%

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Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

et al. 2017

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Abstract:Integrating renewable and intermittent energy sources into the electricity sector challenges traditional energy systems based on predictability and constant supply. Studies oncomplementarity between climate-related resources from different regions and countries are proving to be an efficient means to overcome the variability of single-source use. Although Rio de Janeiro State (Brazil) has set goals of increasing its use of clean and low carbon energy, there is no study to support the expansion process. Given that, this work aims to assess the complementarity potential of small hydropower plants, wind farms, and photovoltaic panels in the state. Power output estimates have been based on wind speeds, solar radiation and river flow data and without generation technologies assumptions. The Pearson correlation coefficient and linear programming have been used to comprehend and optimize the renewable mix. Daily complementarity has been observed among the energy sources considered, especially between hydro and solar resources. The optimization process showed an improvement of 61% in the total power standard deviation, from the worst-100% hydro power-to the best case-62% of photovoltaic, 21% of wind, and 17% of hydro power. The results highlight the benefits of appropriately joining the three sources and suggest investing in photovoltaic generation.

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Section: Hydro Energymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

et al. 2017

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“…This topic is completely new and has not yet been addressed in the literature. Cantão et al [3] do this with correlation maps, without presenting specific contributions about complementarity itself. The method proposed here contributes to the analysis of complementarity and in fact opens many new possibilities.…”

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confidence: 99%

Editorial Special Issue on “Energetic Complementarity”

Beluco¹

2017

EPE

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This editorial presents the motivations that were the focus of the papers that make up this Special Issue on energetic complementarity. The articles deal with the application of the concept of energetic complementarity in time under certain conditions and with the proposition of new means to evaluate complementarity in time between more than two renewable energy resources. An article further proposes a method for establishing energetic complementarity in space, a concept that is important and necessary for management and planning of energy resources but does not yet have tools that allow it to be quantified and handled appropriately. In addition, two letters to the editor discuss issues that still need to be matured for a better understanding and application of the concept of energetic complementarity, both in time and space. Keywords Component: Energetic ComplementarityThe concept of complementarity is not new and has always been present in the work of engineers and managers who have dealt with the design and operation of energy systems over time. The growth of energy systems around the world, as a result of growing demand for energy supplies and rising expectations for better quality supplies, has resulted in the need to make better use of available energy resources. In this context, energetic complementarity deserves a formal and coherent treatment.Complementary energy resources can be exploited with hybrid systems with components with lower installed power or with lower capacities for energy storage and yet present equivalent or even better performance when compared to systems based on not so complementary recourses. It is obvious that the coinci-

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“…The continental extension of the Brazilian system also suggests the search for complementarity with other forms of energy, such as wind [4] and solar. Wind power is undergoing an expansion phase and the consequences of its low capacity factor can be mitigated by using it in conjunction with reversible power plants [5] [6] and other complementary resources.…”

mentioning

confidence: 99%

Some Concerns Related to the Idea of Energetic Complementarity and Its Application

Livi¹,

Rossini²,

Beluco³

2017

EPE

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This letter to the editor presents some notes on energetic complementarity and a growing understanding of its role as a planning tool. This letter looks at the fact that an increasing number of works in recent years on this subject has promoted an increase in its level of importance in the design and operation of energy systems. The main change is the consideration of complementarity no longer as a consequence but as a design parameter. The continental dimension of Brazil, for example, should make it obvious that complementarities should be sought among the various energy resources available.

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Evaluation of hydro-wind complementarity in the Brazilian territory by means of correlation maps

Cited by 96 publications

References 5 publications

Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

Editorial Special Issue on “Energetic Complementarity”

Some Concerns Related to the Idea of Energetic Complementarity and Its Application

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