Modelling and Assessing the Performance of Hybrid PV-CSP Plants in Morocco: A Parametric Study

Bousselamti, Loubna; Cherkaoui, Mohamed

doi:10.1155/2019/5783927

Cited by 35 publications

(6 citation statements)

References 29 publications

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“…The geothermal liquid is retrieved at various temperatures from many wells drilled. The geofluid generated at lower temperatures is warmed more in an excessive solar converter before being blended with the rest of the geofluid in the primary manufacturing line [17]. An "improved" geofluid is also utilized to vaporize the hydraulic fluid in two matching energy devices to create power and afterward reinjected into the watershed.…”

Section: Proposed Methodologymentioning

confidence: 99%

Thermal Storage for the Analysis of Hybrid Energy Systems Based on Geothermal and Solar Power

Aravind¹,

Mekala²,

Muthuraju³

et al. 2022

International Journal of Photoenergy

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Thermal degradation of geothermal energy occurs even during the duration of geothermal energy facilities. The enormity and efficiency of thermal energy available for electric transformation, as well as plant performance and power production, are both affected by the decrease in geofluid heat. Additionally, due to the generally increased turbine exhaust temperatures, the efficiency of geothermal energy based upon air-cooled organic Rankine cycle devices (ORCs) degrades considerably at hot room temperatures. A newly designed Geothermal-Concentrator Solar Power (GEO-CSP) station is simulated in this work, which allows for greater geothermal power use and enhances the effectiveness of the geothermal ORC system over the power plant’s lifespan. The geothermal fluid entering the ORC’s heating element is heated using the sun’s radiation. The CSP facility is fitted with a thermal energy storing unit that stores excess energy from the sun accessible throughout the day and releases it at nighttime whenever the energy system’s performance is better. When the storage facility is included in the concentrator CSP technology, the incremental yearly energy generation from solar increases by 19 percent, from 5.3 percent to 6.3 percent, similar to the geothermal-only plant. As a result, adding a TES unit to the hybrid unit could be quite beneficial.

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Section: Proposed Methodologymentioning

confidence: 99%

Thermal Storage for the Analysis of Hybrid Energy Systems Based on Geothermal and Solar Power

Aravind¹,

Mekala²,

Muthuraju³

et al. 2022

International Journal of Photoenergy

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show abstract

“…Unlike CSP, the PV surface is not tracked-horizontal, it is fixed-tilted up toward the South horizon by an angle equal to the local latitude. This orientation is often selected since it averages the noontime irradiation peaks over the year [75,78] to maximize the annual energy produced, particularly in Morocco [79].…”

Section: Csp-tes and Pv-bes Simulation Modulesmentioning

confidence: 99%

Utility-Scale PV-Battery versus CSP-Thermal Storage in Morocco: Storage and Cost Effect under Penetration Scenarios

2021

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In this study, we examine how Battery Storage (BES) and Thermal Storage (TES) combined with solar Photovoltaic (PV) and Concentrated Solar Power (CSP) technologies with an increased storage duration and rental cost together with diversification would influence the Moroccan mix and to what extent the variability (i.e., adequacy risk) can be reduced; this is done using recent (2013) cost data and under various penetration scenarios. To do this, we use MERRA-2 climate reanalysis to simulate hourly demand and capacity factors (CFs) of wind, solar PV and CSP without and with increasing storage capabilities—as defined by the CSP Solar Multiple (SM) and PV Inverter Loading Ratio (ILR). We adjust these time series to observations for the four Moroccan electrical zones over the year 2018. Our objective is to maximize the renewable (RE) penetration and minimize the imbalances between RE production and consumption considering three optimization strategies. We analyze mixes along Pareto fronts using the Mean-Variance Portfolio approach—implemented in the E4CLIM model—in which we add a maximum-cost constraint to take into account the different rental costs of wind, PV and CSP. We propose a method to calculate the rental cost of storage and production technologies taking into account the constraints on storage associated with the increase of SM and ILR in the added PV-BES and CSP-TES modules, keeping the mean solar CFs fixed. We perform some load bands-reduction diagnostics to assess the reliability benefits provided by each RE technology. We find that, at low penetrations, the maximum-cost budget is not reached because a small capacity is needed. The higher the ILR for PV, the larger the share of PV in the mix compared to wind and CSP without storage is removed completely. Between PV-BES and CSP-TES, the latter is preferred as it has larger storage capacity and thus stronger impact in reducing the adequacy risk. As additional BES are installed, more than TES, PV-BES is favored. At high penetrations, optimal mixes are impacted by cost, the more so as CSP (resp., PV) with high SM (resp., ILR) are installed. Wind is preferably installed due to its high mean CF compared to cost, followed by either PV-BES or CSP/CSP-TES. Scenarios without or with medium storage capacity favor CSP/CSP-TES, while high storage duration scenarios are dominated by low-cost PV-BES. However, scenarios ignoring the storage cost and constraints provide more weight to PV-BES whatever the penetration level. We also show that significant reduction of RE variability can only be achieved through geographical diversification. Technological complementarity may only help to reduce the variance when PV and CSP are both installed without or with a small amount of storage. However, the diversification effect is slightly smaller when the SM and ILR are increased and the covariances are reduced as well since mixes become less diversified.

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“…However, owing to the intermittent nature of the solar resource, ensuring a satisfying balance between the available energy supply and the demand profile remains a challenging issue. A possible way to tackle this obstacle lies in the marriage between two different solar technologies: first, Photovoltaic (PV) technology, where the solar radiation is directly converted into electricity either through flat PV modules or concentrated solar cells and second, Concentrated Solar Power (CSP) technology, capable of converting sunlight into thermal energy using a Heat Transfer Fluid (HTF) that can be used to store heat for a long duration (1-18 h) when integrated with a Thermal Energy Storage system (TES) [2][3][4][5][6][7][8][9][10][11]. Merging these two technologies into one single power plant would thus offer the combined benefit of increased solar-to-electricity efficiency, reduced PV costs and affordable TES, ensuring beyond daytime solar electricity production without the need for expensive and cumbersome electrochemical batteries.…”

Section: Introductionmentioning

confidence: 99%

A multiphysics model of large-scale compact PV–CSP hybrid plants

et al. 2021

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Modelling and Assessing the Performance of Hybrid PV-CSP Plants in Morocco: A Parametric Study

Cited by 35 publications

References 29 publications

Thermal Storage for the Analysis of Hybrid Energy Systems Based on Geothermal and Solar Power

Thermal Storage for the Analysis of Hybrid Energy Systems Based on Geothermal and Solar Power

Utility-Scale PV-Battery versus CSP-Thermal Storage in Morocco: Storage and Cost Effect under Penetration Scenarios

A multiphysics model of large-scale compact PV–CSP hybrid plants

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