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This work evaluated both the energetic complementarity at the same locationand the emnergetic complementarity considering distinct locations. evaluated the energetic complementarity between water and wind resources along the Brazilian territory, presenting the results through maps of corelation. Eifler applied the Beluco index to evaluate the complementarity of wind and solar energy throughout the Northeast region of Brazil.Ĭantão et al. Bagatini also developed complementary maps 2 for hydro, wind and solar energy, considering these features two by two, For the State of Rio Grande do Sul. The index proposed by Beluco was applied by Pianezzola in the preparation of complementary maps 1 of wind and solar energy throughout the state of Rio Grande do Sul. The calculation is performed based on average values and minimum and maximum values. established the concept of complementarity in time in the same place as being composed of three components: a partial time-complementarity, anenergy-complementarity and anamplitude-complemen- tarity. Later, this index was crossed with performance information and allowed to know how the performance of hybrid systems can be directly influenced by the complementarity. proposed a way to evaluate the complementarity in time in the same place with the determination of a dimensionless index. This measure can help the decision making for new investments, choosing the more appropriate sources for each region, taking into account the robustness of the energy grid and the operational costs involved, in order to fulfill the expected demand.
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When considering the design of the energy grid of a region, measuring the complementarity between sources is also useful, even if the sources are not yet installed. At certain times, the differences between demands and availabilities can be attenuated considering the possible complementarity between the energy resources. Large interconnected systems must have the energy dispatch established based on regional differences in demand and instantaneous availability of energy. The output of each individual source over a period of time varies, due to the seasonality of the natural sources (hydraulic, wind and solar) or by activating or deactivating thermal generators (from fossil fuels or biofuels) that make the system.įor a given energy demand, verifying how the natural sources available complement each other is a point of interest, because from this complementarity it is possible to assess the need of thermal complementation of the system, an option that is always more expensive and generates more pollution. The maintenance of an adequate energy supply of a region relies on how its energy grid is composed, taking into account the existence and availability of a set of energy sources.