## 3 Results
Table 10 shows the exergy destruction rates for the SGPP cycle components; the maximum exergy destruction rate happened in the solar field, followed by the orc condenser and the steam evaporator. The solar implemented power plant had a higher rate of exergy destruction. This is because of the higher temperature difference between hot and cold streams, [PERSON] et al. [57]. Additionally, the rate of exergy destruction can be decreased if one could reduce the inlet temperature of the hot fluid in shell and tube heat exchangers provided that the required heat transfer rate is supplied, [PERSON] et al. [58]. As a summary, it can be concluded that the solar field, ORC condenser and ORC evaporator have more potential to reduce their destructive rates and to increase system efficiency, [PERSON] et al. [26]. In addition, the results obtained from the traditional exergo-economic analysis are shown in Tables 9 and 10. The greater the investment \(\dot{\mathbf{(}}\dot{\mathbf{Z}}\)) and the cost of exergy destroyed \(\dot{\mathbf{(}}\dot{\mathbf{C}}_{\mathbf{D}}\)), the greater the influence of the component in the system, therefore, the component with the greatest improvement in cost efficiency of the total plant could be defined, [PERSON] et al. [43]. The exergo-economic factor, r, is the effective parameter that allows one to compare and evaluate the components that make up the system. A high value for this parameter indicated that for the component under study, acquisition costs predominated over operation and maintenance costs. For example, in the case of the condenser, which was the component with the lowest value of the exergo-economic factor, it can be concluded that expenses were mostly related to operating and maintenance costs compared to acquisition costs. The results of the exergo-economic analysis associated with the GPP cycle of simulation determined that the maximum investment cost in the cycle was related to the ORC condenser. Additionally, the maximum cost of exergy destruction was associated with the ORC turbine. The results of the exergo-economic analysis of the SGPP cycle showed that the solar power plant had the maximum investment cost. The maximum cost of exergy destruction was the evaporator. The exergo-environmental results for the GPP and SGPP cycles are given in Tables 11 and 12, respectively. According to Table 11, the turbine had the highest environmental impact on the equipment, and the highest exergy destruction. After that, the evaporator had the highest environmental impact but its exergy destruction was zero. In the second mode, the solar panel had the highest environmental impact of the equipment, but due to environmental impacts of fuel flow of the solar panel, exergy destruction was zero. According to Table 12, in the SGPP cycle, the solar panel had the highest environmental impact of the equipment, but due to environmental impacts of fuel flow of the solar panel, exergy destruction was zero, because the environmental impacts of fuel flow of the solar panel was zero. The steam evaporator in the geothermal solar cycle had the highest impact on environmental exergy degradation, [PERSON] et al. [47], [PERSON] [48].