Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions

Parabolic-trough solar-thermal power-plant investments are subordinate to radiation availability, thermal-energy storage capacity, and dynamic behavior. Their integration into electricity markets is made by minimizing grid-connection costs, thus improving energy-availability and economic-efficiency...

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Main Authors: Jorge M. Llamas, David Bullejos, Manuel Ruiz de Adana
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/20/3973
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author Jorge M. Llamas
David Bullejos
Manuel Ruiz de Adana
author_facet Jorge M. Llamas
David Bullejos
Manuel Ruiz de Adana
author_sort Jorge M. Llamas
collection DOAJ
description Parabolic-trough solar-thermal power-plant investments are subordinate to radiation availability, thermal-energy storage capacity, and dynamic behavior. Their integration into electricity markets is made by minimizing grid-connection costs, thus improving energy-availability and economic-efficiency levels. In this context, this work analyzes the sizing-investment adequacy of a 100 MW<sub>e</sub> parabolic-trough solar-thermal power plant regarding solar resources and thermal energy into power-block availability for both regulated and deregulated electricity markets. For this proposal, the design of a mathematical model for the optimal operation of parabolic-trough power plants with thermal storage by two tanks of molten salt is described. Model calibration is made by using a currently operated plant. Solar-resource availability is studied in three different radiation scenarios. The levelized cost of electricity and production profit relating to the investment cost are used to analyze plant sustainability. Thus, the levelized cost of electricity shows the best plant configuration for each radiation scenario within a regulated market. For deregulated markets, the optimal plant configuration tends to enhance the solar multiple and thermal-storage capacity thanks to an increment on selling profit. The gross average annual benefit for electricity generation of deregulated against regulated markets exceeds 21% in all radiation areas under study.
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spelling doaj.art-2eb7fcdbeea54e7b90fcb0783481d1782022-12-22T02:22:01ZengMDPI AGEnergies1996-10732019-10-011220397310.3390/en12203973en12203973Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market ConditionsJorge M. Llamas0David Bullejos1Manuel Ruiz de Adana2Department of Electrical Engineering, Escuela Politécnica Superior de Córdoba (EPSC), University of Cordoba, Ctra. Madrid-Cádiz Km. 396, 14071 Cordoba, SpainDepartment of Electrical Engineering, Escuela Politécnica Superior de Córdoba (EPSC), University of Cordoba, Ctra. Madrid-Cádiz Km. 396, 14071 Cordoba, SpainDepartment of Thermal Engines, Escuela Politécnica Superior de Córdoba (EPSC), University of Cordoba, Ctra. Madrid-Cádiz Km. 396, 14071 Cordoba, SpainParabolic-trough solar-thermal power-plant investments are subordinate to radiation availability, thermal-energy storage capacity, and dynamic behavior. Their integration into electricity markets is made by minimizing grid-connection costs, thus improving energy-availability and economic-efficiency levels. In this context, this work analyzes the sizing-investment adequacy of a 100 MW<sub>e</sub> parabolic-trough solar-thermal power plant regarding solar resources and thermal energy into power-block availability for both regulated and deregulated electricity markets. For this proposal, the design of a mathematical model for the optimal operation of parabolic-trough power plants with thermal storage by two tanks of molten salt is described. Model calibration is made by using a currently operated plant. Solar-resource availability is studied in three different radiation scenarios. The levelized cost of electricity and production profit relating to the investment cost are used to analyze plant sustainability. Thus, the levelized cost of electricity shows the best plant configuration for each radiation scenario within a regulated market. For deregulated markets, the optimal plant configuration tends to enhance the solar multiple and thermal-storage capacity thanks to an increment on selling profit. The gross average annual benefit for electricity generation of deregulated against regulated markets exceeds 21% in all radiation areas under study.https://www.mdpi.com/1996-1073/12/20/3973solar thermalparabolic troughenergy storagemodel validationelectricity marketsizing investmentplant optimization
spellingShingle Jorge M. Llamas
David Bullejos
Manuel Ruiz de Adana
Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
Energies
solar thermal
parabolic trough
energy storage
model validation
electricity market
sizing investment
plant optimization
title Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
title_full Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
title_fullStr Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
title_full_unstemmed Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
title_short Optimization of 100 MW<sub>e</sub> Parabolic-Trough Solar-Thermal Power Plants Under Regulated and Deregulated Electricity Market Conditions
title_sort optimization of 100 mw sub e sub parabolic trough solar thermal power plants under regulated and deregulated electricity market conditions
topic solar thermal
parabolic trough
energy storage
model validation
electricity market
sizing investment
plant optimization
url https://www.mdpi.com/1996-1073/12/20/3973
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AT manuelruizdeadana optimizationof100mwsubesubparabolictroughsolarthermalpowerplantsunderregulatedandderegulatedelectricitymarketconditions