Assessment of the levelized cost of electricity for a standalone power plant in Morocco: A case study

Author(s):  
Amine El Fathi ◽  
Abdelkader Outzourhit
Entropy ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 655
Author(s):  
Louay Elmorsy ◽  
Tatiana Morosuk ◽  
George Tsatsaronis

The transition towards higher shares of electricity generation from renewable energy sources is shown to be significantly slower in developing countries with low-cost fossil fuel resources. Integrating conventional power plants with concentrated solar power may facilitate the transition towards a more sustainable power production. In this paper, a novel natural gas-fired integrated solar combined-cycle power plant was proposed, evaluated, and optimized with exergy-based methods. The proposed system utilizes the advantages of combined-cycle power plants, direct steam generation, and linear Fresnel collectors to provide 475 MW baseload power in Aswan, Egypt. The proposed system is found to reach exergetic efficiencies of 50.7% and 58.1% for day and night operations, respectively. In economic analysis, a weighted average levelized cost of electricity of 40.0 $/MWh based on the number of day and night operation hours is identified. In exergoeconomic analysis, the costs of thermodynamic inefficiencies were identified and compared to the component cost rates. Different measures for component cost reduction and performance enhancement were identified and applied. Using iterative exergoeconomic optimization, the levelized cost of electricity is reduced to a weighted average of 39.2 $/MWh and a specific investment cost of 1088 $/kW. Finally, the proposed system is found to be competitive with existing integrated solar combined-cycle plants, while allowing a significantly higher solar share of 17% of the installed capacity.


2021 ◽  
Vol 7 ◽  
pp. 199-203
Author(s):  
José-Ramón Rodríguez-Ossorio ◽  
Alberto González-Martínez ◽  
Miguel de Simón-Martín ◽  
Ana-María Diez-Suárez ◽  
Antonio Colmenar-Santos ◽  
...  

2018 ◽  
Vol 877 ◽  
pp. 360-365
Author(s):  
Rashmi Sharma ◽  
Bharat Kumar Saxena ◽  
K.V.S. Rao

Large amount of agricultural waste is produced after harvesting of crops like wheat, paddy, soya-bean, maize, mustard, sugarcane, groundnut etc. The conventional way is to burn it in the fields or dump it across the wasteland. The burning of biomass residue in the fields has very adverse effect for the environment and leads to air pollution. A more efficient way is to use biomass residues of agricultural crops for production of electricity through biomass based power plants. In India, grid connected biomass power and co-generation installed capacity has increased from 1,102 MW in 2006 to 8,182 MW in 2017. This paper analyses the twenty years’ performance of a 7.5 MW biomass power plant situated at Rangpur village near Kota city of Rajasthan, India, based on capital cost, present cost of biomass per tonne, data obtained from 2006 to 2015 related to annual power generation, and annual consumption of biomass. Levelized Cost of Electricity is found to be varying from Rs. 4.43/kWh to Rs. 4.64/kWh for interest rates varying from 8% to 16%. Plant Load Factor is found to be varying from 29% to 82% during the period of 2006-07 to 2014-15 for nine years, with an average plant load factor of 73%.


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