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

Abstract

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.

A review on the complementarity of renewable energy sources: Concept, metrics, application and future research directions

“…Naeem et al (2019) [46] used the Pearson correlation coefficient for assessing solar-wind complementarity in an optimization model whose objective function aims at maximizing economic benefits of a microgrid, by means of exploiting such spatial and temporal energetic complementarity. Some other models dealing with optimization based on complementarity can be found in [42], [44], [68], [75], [91], [92], [93] and [94].…”

Evaluation of the Operating Efficiency of a Hybrid Wind–Hydro Powerplant

“…For modeling the generators, generic performance Equations (3)- (5) have been used. The parameters of this Equation are taken from the generators installed in the Gorona plant datasheet (shown in For turbining, the performance of a generic Pelton turbine with the same maximum efficiency of the turbines installed in the plant is used (shown in Figure 6).…”

“…Notwithstanding, wind speed variations and its prediction difficulties create some problems in power system operation. Therefore, when wind penetration increases, power system operators have to take measures to maintain system integrity [4] or consider complementary renewable energy sources [5].…”

Estimation of the Daily Variability of Aggregate Wind Power Generation in Alberta, Canada

“…Our goal is to predict the aggregate wind power generation in Alberta in the future with the further goals of analyzing congestion of the power grid, the best locations of future wind farms, and the relationship between wind and solar power. In particular, our study could help to better understand the smoothing effect of [2,3] hybrid wind and solar energy systems on the future overall renewable production patterns in Alberta.…”