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In these plants, an additional Rankine cycle is employed to harness more electricity from the heat generated from the binary cycle, thus increasing the efficiency of the plant. These plants have power capacity up to 10 MWe (DiPippo 2015). On the other hand, hybrid plants make use of an additional source of heat such as CSP to enhance the efficiency of the plant by increasing the temperature of geothermal fluid. For example, a hybrid plant in Italy uses biomass energy to increase the temperature of brine and the Stillwater project in the United States which has combined CSP and solar photovoltaics with a binary plant (IRENA 2017).