# Benefit Analysis of Grid-Connected Floating Photovoltaic System on the Hydropower Reservoir
## 1 Introduction
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**Location** & **Researchers \& Methodology** & **Design Specification** & **Remarks in Benefit Evaluation** \\ \hline \multirow{4}{*}{Northwestern region of Bangladesh} & [PERSON] et al. [8] used HOMER Powering Health Tool and HOMER Pro to analyze the technical and financial data. & The microgrid hybrid PV system: 80 Solar panel: 120 cell 400 Wpromo-crystalline panel, 20.8\% & The return on investment, internal rate of return, discounted payback, and payback time are estimated as 9.8%, 12.7\%, 695 years, and 7.53 years, respectively. & The electricity production cost is US 0.065. \\  & & & \\  & & & \\  & & & \\ \hline \multirow{4}{*}{Thakurgaon, Bangladesh} & [PERSON] et al. [9] used HOMER Pro to perform the techno—economic evaluation. & The microgrid hybrid PV system: 24 kW PV panel: 400 Wpromo-crystalline panel, 20.8\% & The electricity production cost was 80.06 \& kWh; CO2 emissions 399 kg/year; \\  & & & \\  & & & \\  & & & \\ \hline \multirow{4}{*}{Saint Martin Island, Bangladesh} & [PERSON] et al. [10] used Homer pro software to design and model the system. & A stand-alone energy hybrid system: 87 V module: 327 W. & Levelized cost of energy (LCOE) is 35\% lower than the solar home system. \\  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \hline \multirow{4}{*}{Misurata, Libya} & [PERSON] et al. [11] used HOMER to evaluate the different configuration options. & Power system Components Considered: 1.191 with, and Ref 535, \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \hline \multirow{4}{*}{Sabratha, Libya} & [PERSON] et al. [12] used HOMER software for optimizations and simulations. & A 10 kW wind turbine. & The optimization performance at PV array 150/73 MW/yr, wind turbine 596.81 \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \cline{1-1}  & & & \\ \hline \end{tabular}
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Table 1: The recent progress and similar work. Vietnam has many hydroelectric reservoirs and nearly 7000 irrigation reservoirs. In addition to exploiting hydropower capacity and creating water sources for irrigating agricultural lands, with the large surface areas, these can also be used to install other floating PV plants. Regarding various renewable and sustainable energy technologies [21; 22; 23; 24; 25; 26; 27; 28], the Hybrid renewable system [10; 11; 12; 16; 17; 19; 29; 30], Hybrid PV system [13; 14; 15; 20; 31; 32; 33], Energy conservation of smart grid system [34], the floating PV plant can utilize the large water surface areas of hydropower reservoirs to add more capacity to the national utility grid, and has been promoted by many researchers and agreed upon by the Vietnamese government. The selection of evaluation criteria is one of the most important concerns. The criteria must be explicitly selected to avoid inconsistencies when solving values of the aggregation function between different objectives (Technical objective--Economic objective--Environmental objective--Social objective) [14; 27]. The floating solar power plants with a capacity of 47.5 MW connected to the national utility grid 110 kV at Da Mi hydropower reservoir in Binh Thuan province were selected to be electrically empowered and beneficially