**9. Conclusions**

The paper shows the possibilities of establishing FPV in Egyptian dams in terms of High Dam and Aswan Reservoir. The study shows that installing FPV will lead to an increase in the power generation of the hybrid hydro PV system to an annual increase of up to 11.9 GWh for High Dam and 11.3 GWh for Aswan Reservoir. The hybrid system will lead to water saving by 0.1 MCM for both dams. Three alternatives are presented to select the type of the FPV in terms of mono-crystalline, polycrystalline, and thin film; the results show that polycrystalline is the best solution in Egypt for FPV. The study also proposed two different scenarios to mount FPV in terms of fixed mounting and single-axis tracking and the results show that single-axis tracking achieved a higher energy rate by 4.96%. Using FPV and a hydro hybrid system achieved carbon dioxide reduction by 44,270.61 tons.

**Author Contributions:** Conceptualization, H.H.F. and N.R.; methodology, H.H.F.; validation, N.R., H.H.F. and E.R.; formal analysis, N.R.; investigation, H.H.F.; resources, H.H.F.; data curation, N.R.; writing—original draft preparation, H.H.F.; writing—review and editing, H.H.F. and E.R.; visualization, N.R.; supervision, E.R.; project administration, H.H.F.; funding acquisition, E.R. All authors have read and agreed to the published version of the manuscript.

**Funding:** This work was carried out in the framework of the research project DREAM (Dynamics of the REsources and technological Advance in harvesting Marine renewable energy), supported by the Romanian Executive Agency for Higher Education, Research, Development and Innovation Funding—UEFISCDI, grant number PN-III-P4-ID-PCE-2020–0008.

**Institutional Review Board Statement:** Not the case this study does not involve humans or animals.

**Informed Consent Statement:** Not the case this study does not involve humans or animals.

**Data Availability Statement:** The data that support the findings of this study are available in NASA Prediction of Worldwide Energy Resource at https://power.larc.nasa.gov (accessed on 7 May 2021).

**Conflicts of Interest:** The authors declare no conflict of interest.

#### **Nomenclature**


#### **Appendix A. Electrical Specifications of PV Panels**


#### **Table A1.** Panel types and description.
