Abstract
The current study is focused on the economic and financial assessments of solar and wind power potential for nine selected regions in Libya for the first time. As the existing meteorological data, including wind speed and global solar radiation, are extremely limited due to the civil war in the country, it was therefore decided to use the NASA (National Aeronautics and Space Administration) database as a source of meteorological information to assess the wind and solar potential. The results showed that the country has huge solar energy potential compared to wind energy potential. Additionally, it is found that Al Kufrah is a suitable region for the future installation of the Photovoltaic (PV) power plant due to high annual solar radiation. Based on the actual wind speed analysis, Benghazi and Dernah are the best regions for large-scale wind farm installation in the future taking into account existing meteorological data limitations. The values of the wind power density in all regions are considerable and small-scale wind turbines can be used to generate electricity based on NASA average monthly wind data for 37 years (1982–2019). Moreover, this work aimed to evaluate the wind/PV systems technical and economically through RETScreen Expert (Version 6.0, CanmetENERGY Varennes Research Centre of Natural Resources Canada, Varennes, Canada). Focusing on the power supply crisis in the country, the potential of electricity production by 5 kW grid-connected residential/household rooftop PV in all regions is proposed and presented. Additionally, this paper evaluated a techno-economic analysis of the 50MW wind/PV system in suitable places. The performance of a 5 kW and 50 MW PV solar system with three PV technologies, namely mono-crystalline silicon, poly-crystalline silicon, and thin-film (CdTe), was also analyzed. The results demonstrated that the development of the wind/PV system in the selected regions is both technically and economically feasible. The outcomes of this study can help decision-makers in designing and installing PV power plants as an alternative source for the future.
Highlights
Climate change is the most important environmental issue nowadays due to the increase in greenhouse gas (GHG) emissions from fossil fuel combustion [1]
It is noticed that the percentage change values between the actual and NASA data varied from 11.49% to 30.26% for Al-kufrah, Benghazi, Darnah, Misratah, Sabha, Energies
Based on the input variables, Net present value (NPV), Annual life cycle savings (ALCS), Levelized cost of energy (LCOE), Simple payback (SP), and Equity payback (EP) were determined by the RETScreen software
Summary
Climate change is the most important environmental issue nowadays due to the increase in greenhouse gas (GHG) emissions from fossil fuel combustion [1]. The use of wind and solar energy for generating electricity has been investigated by many scientific researchers. Zhou et al [5] utilized meteorological data from 1979 to 2008 to investigate the potential of onshore wind energy in China. They found that onshore wind farms could produce about 146,336 GWh in the region. The results indicated that the developed wind farms produced about 1130 GWh and the electricity cost was expected to be within the range of 1.96–2.09 € cents/kWh. Dabar et al [7] investigated the feasibility of the wind energy potential at GaliMa-aba, Ghoubbet, and Bada Wein in the Republic of Djibouti. The results indicated that annual electricity production was estimated to be 1073 GWh/year with the expected cost ranging from
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