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CHP units are a great complement to the photovoltaic panels in power systems. During the summer, when the photovoltaic panels generate electric power from sunlight and not as much heat is needed, the CHP units may not be used at all or only to a limited extent. However, in winter, when the efficiency of PV panels decreases, it is cogeneration that can generate the energy needed instead. The combination of these technologies increases the energy efficiency and overall performance of the system, as well as its flexibility. This combination provides the operator with a continuous supply of energy and reduces its energy costs.