Yazar "Shaaban, Mohamed" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Prospects of renewable energy as a non-rivalry energy alternative in Libya
    (Pergamon-Elsevier Science Ltd, 2021) Almaktar, Mohamed; Shaaban, Mohamed
    Despite the fact that Libya is a petro-state economy, yet the country faces serious challenges to supply its substantially growing demand for energy. With the high volatility in fossil fuel prices in international markets, its predictable depletion and environmental concerns, as well as the exacerbated competition among rival forces to control oil and gas resources, significant efforts are required to develop non-rivalry energy alternative (NREA) solutions to bridge the demand?supply energy gap and diversify the energy sources of Libya. The country has a significant potential of diverse renewable energy (RE) resources that can have a pivotal role in the national energy mix as a NREA. This paper does not only provide a broad review of the current status of Libya?s energy resources, but it also carries out a comprehensive resource assessment of available RE potentials. Existing utilization state and predicted development potential of various RE technologies in Libya, including solar energy, wind (onshore & offshore), biomass, wave and geothermal energy, are thoroughly investigated. Advanced technologies critically needed to enhance energy security and improve the penetration level of renewables, including hydrogen storage and energy efficiency (EE), are elaborately discussed. It is concluded that solar and onshore wind energy resources accompanied with EE measures are the major contributors, as NREA, to displace fossil fuels for energy services. The average potential of solar PV and onshore wind over the Libyan territories amounts to 1.9 MWh/kW/year and 400 W/m2, respectively. Notwithstanding, biomass and geothermal energy sources are likely to play an important complementary role in this regard.
  • Küçük Resim Yok
    Öğe
    Revitalizing operational reliability of the electrical energy system in Libya: Feasibility analysis of solar generation in local communities
    (Elsevier Sci Ltd, 2021) Almaktar, Mohamed; Elbreki, A. M.; Shaaban, Mohamed
    The political upheaval and the civil war in Libya had a painful toll on the operational reliability of the electric energy supply system. With frequent power cuts and crumbling infrastructure, mainly due to the damage inflicted upon several power plants and grid assets as well as the lack of maintenance, many Libyans are left without electricity for several hours a day. As the country has a staggeringly immense potential of solar energy, it is inevitable to exploit such potential, to avert system-wide blackouts. This paper investigates the use of small-scale PV systems in local communities as non-wires alternative (NWA), offering excess energy exchange within local/neighboring microgrids (MGs) for reliable electric power supply. Different combinations of PV/storage/diesel distributed generations (DGs), with grid-interface options, were applied on a case study of a typical dwelling in the Eastern Libyan city of Benghazi. Technical and financial feasibility assessments were carried out to contrast between various supply combinations. Sensitivity analysis of the PV-grid system was also conducted using Net Present Value (NPV) and the payback time indicators to determine the impacts of Feed-in Tariff (FiT) rates, financial incentives, electricity tariff, and inflation rate on the economic viability of the PV grid system. Results show that the PV-grid system has a promising potential under reasonable set of varying system parameters. On top of its social and environmental-friendly advantages, the PV-battery system is found to be more economical when adopted as a standalone NWA solution as compared to the diesel generator option, even at the lowest diesel price. The PV-grid system does not only provide a short-term remedy to the rolling blackouts in Libya but also enhances system operational reliability by providing a NWA to rundown or shattered grid infrastructure, thus bolstering energy provision in residential neighborhoods. (c) 2020 Elsevier Ltd. All rights reserved.