**Author details**

system, a single flash geothermal cycle, an absorption cooling system, thermal energy storage connected with auxiliary steam turbine and concentrated solar collectors, hot water system, and drying system. The system has achieved overall energy and exergy efficiencies to be 69.6 and 42.8%, respectively. The first and second steam turbines have the power of 10,043 and 9886 kW. The *COP* and *COPex* are 0.678 and 0.253 for the absorption cooling system and 2.029 and 0.1826 for heat pump system, respectively. The refrigeration load is 1787 kW. The overall energy and exergy efficiencies for the whole system are 69.6 and 42.8%, respectively.

*Schematic diagram of gas power cycle with wind turbine, CAES, ORC, and ARS (adopted from [16]).*

*Schematic diagram of the multigeneration system powered by the solar and geothermal energy (adopted*

**Figure 15.**

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**Figure 14.**

*Low-temperature Technologies*

*from [15]).*

A wind system is combined with a refrigeration system, as shown in **Figure 15**. Wind energy is coupled with compressed air energy storage (CAES) systems to store wind energy for long-term usage [16]. The integrated system consists of a combined gas power cycle, including compressors, intercooling heat exchangers, and gas turbine, an organic Rankine power cycle (ORC), and an absorption refrigeration system (ARS). The system objective is to provide electricity, domestic hot water, and cooling load. The system can generate electricity of 33.67 kW provided

Shaimaa Seyam Faculty of Engineering, Benha University, Benha, Egypt

\*Address all correspondence to: shaimaa.seyam@mail.utoronto; shaimaa.abdelhamid@bhit.bu.edu.eg

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