Influence of Different Degrees of Complementarity of Solar and Hydro Energy Availability on the Performance of Hybrid Hydro PV Generating Plants

Abstract

<p class="MsoNormal" style="text-align:justify;"> <span lang="EN-US">The complementarity of energy resources used in hybrid power generation can result in optimization of power capacity and reservation capabilities. This article is dedicated to the study of hybrid hydro PV systems. The goal is to establish the relationship between system performance and complementarity of energy resources. The study was carried out with computer simulations based on a method that uses ideal functions developed to describe the energy resources and de</span><span lang="EN-US">termines a limit of performance. The results confirm expectations that performance, as measured by the total time of failure to meet demand, will be better as energy resources are complementary. Charts relating energy complementarity with failures are presented. The subsequent research work shall proceed to at least two different phases. In the first one, the method exposed in the present work shall be applied to real data and compared to the operation of existing hybrid plants. In the second phase, results shall be confronted with design parameters of hydro PV plants based on comple</span><span lang="EN-US">mentary resources. A next stage would be the enlargement of the method applied in this work for systems based on other energy resources, such as wind energy and ocean wave energy.</span><span lang="EN-US"><o:p></o:p></span> </p

Complementarity in Time between Hydro, Wind and Solar Energy Resources in the State of Rio Grande do Sul, in Southern Brazil

“…But the use of complementarity as a tool for energy resource management goes further, and it should also indicate how to prioritize enterprises formed by plants The maps of Pianezzola [8], cannot be compared with this map, because in his thesis the maps were obtained with indexes of complementarity of amplitude, In comparison with the complementarity map between hydro and wind power, which presented higher I indexes in the Southeast region, the complementarity map between the three energy sources presented higher indexes in the Northeast region. In comparison with the complementarity map between hydropower and photovoltaic solar energy, which had higher I indexes in the Southeast region, the complementarity map between the three energies presented higher indexes in the Northeast region.…”

“…The renewable energy sources most commonly used in this type of system are solar and wind power [8]. The use of only solar energy or wind energy would present a temporal irregularity and an amplitude that would require the sizing of its components with high initial costs.…”

Regularization of hydroelectric reservoir levels through hydro and solar energy complementarity

“…proposed by Beluco, Krenzinger and Souza (2003) and Beluco, Souza and Krenzinger (2013). From all forms of complementarity, temporal is the most important one for this study, and it is given by Equation 4.…”

“…Kruangpradit and Tayati (1996) suggested the use of solar energy to supplement the existing hidroelectric plants in Ban Khun Pae, in northern Thailand. Beluco, Krenzinger and Souza (2003) and Beluco, Souza and Krenzinger (2013) investigated the deployment of a hybrid system that generates energy from solar and hydro complementarity in Rio Grande do Sul, Brazil. Dester et al (2013) discussed the renewable sources integration in Brazilian's energy mix from their complementarity with the hydroelectric plants.…”

Energetic Complementarity with Hydropower and the Possibility of Storage in Batteries and Water Reservoirs

“…The theoretical limit of performance (Beluco et al, 2013b) is defined as the upper limit for the performance of a power plant corresponding to the performance obtained with the "maximum availability" of the energy resource. This would be the maximum energy that could be available from a certain source if it were insensitive to random events typical of the environment and insensitive to periods of extreme energy scarcity or extreme availability.…”