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Jurasz, Jakob
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Publications (3 of 3) Show all publications
Jurasz, J., Canales, F. A., Kies, A., Guezgouz, M. & Beluco, A. (2020). A review on the complementarity of renewable energy sources: Concept, metrics, application and future research directions. Solar Energy, 195, 703-724
Open this publication in new window or tab >>A review on the complementarity of renewable energy sources: Concept, metrics, application and future research directions
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2020 (English)In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 195, p. 703-724Article, review/survey (Refereed) Published
Abstract [en]

Global and regional trends indicate that energy demand will soon be covered by a widespread deployment of renewable energy sources. However, the weather and climate driven energy sources are characterized by a significant spatial and temporal variability. One of the commonly mentioned solutions to overcome the mismatch between demand and supply provided by renewable generation is a hybridization of two or more energy sources into a single power station (like wind-solar, solar-hydro or solar-wind-hydro). The operation of hybrid energy sources is based on the complementary nature of renewable sources. Considering the growing importance of such systems and increasing number of research activities in this area this paper presents a comprehensive review of studies which investigated, analyzed, quantified and utilized the effect of temporal, spatial and spatiotemporal complementarity between renewable energy sources. The review starts with a brief overview of available research papers, formulates detailed definition of major concepts, summarizes current research directions and ends with prospective future research activities. The review provides a chronological and spatial information with regard to the studies on the complementarity concept.

Place, publisher, year, edition, pages
Elsevier Ltd, 2020
Keywords
Complementarity index, Non-dispatchable energy sources, Reliability, Variability, Weather-driven, Natural resources, Dispatchable energies, Future research directions, Hybrid energy sources, Renewable energy source, Spatial and temporal variability, Spatial informations, Renewable energy resources
National Category
Energy Systems
Identifiers
urn:nbn:se:mdh:diva-46597 (URN)10.1016/j.solener.2019.11.087 (DOI)2-s2.0-85076114109 (Scopus ID)
Available from: 2019-12-20 Created: 2019-12-20 Last updated: 2019-12-20Bibliographically approved
Guezgouz, M., Jurasz, J., Bekkouche, B., Ma, T., Javed, M. S. & Kies, A. (2019). Optimal hybrid pumped hydro-battery storage scheme for off-grid renewable energy systems. Energy Conversion and Management, 199, Article ID 112046.
Open this publication in new window or tab >>Optimal hybrid pumped hydro-battery storage scheme for off-grid renewable energy systems
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2019 (English)In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 199, article id 112046Article in journal (Refereed) Published
Abstract [en]

The development of energy storage systems paves the way towards a high integration of renewable energy sources in the electricity generation sector. Considering above, this paper introduces a new energy management strategy to efficiently coordinate a hybrid energy storage system based on pumped hydro storage (long term bulk storage) with batteries (short term, more flexible). For the purpose of this analysis, hourly time series of irradiation, wind speed, temperature and real measured load (characteristic for farmstead) covering one year were gathered for the selected site in Algeria. The optimal size of the system is determined based on a multi-objective optimization using a grey wolf optimizer implemented in MATLAB software. The results indicate that the hybrid storage system enables achieving higher reliability at lower cost in comparison to a system with single storage technology. The use of hybrid storage also reduces the curtailment of renewable generation. Further findings reveal that the cost of an optimal energy supply system with 97.5% reliability is 0.162 €/kWh, 0.207 €/kWh and 1.462 €/kWh for hybrid storage, battery and pumped storage, respectively. However, sensitivity analysis shows that the optimal hybrid storage configuration is less resilient when changes in irradiation/temperature/load are considered. This indicates that special actions (upscale of installed power) must be undertaken to avoid lower performance of hybrid storage systems. In summary, the hybrid storage system seems to be better sized for consideration in optimized solar/wind conditions, but by avoiding oversizing they are less resilient to future potential changes in renewable energy availability.

Place, publisher, year, edition, pages
Elsevier Ltd, 2019
Keywords
Battery, Energy management strategy, Hybrid storage, Optimization, Pumped-storage hydro, Renewable energy sources
National Category
Energy Systems Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-45315 (URN)10.1016/j.enconman.2019.112046 (DOI)000494884000078 ()2-s2.0-85072275158 (Scopus ID)
Available from: 2019-09-26 Created: 2019-09-26 Last updated: 2019-12-02Bibliographically approved
Guezgouz, M., Jurasz, J. & Bekkouche, B. (2019). Techno-economic and environmental analysis of a hybrid PV-WT-PSH/BB standalone system supplying various loads. Energies, 12(3), Article ID 514.
Open this publication in new window or tab >>Techno-economic and environmental analysis of a hybrid PV-WT-PSH/BB standalone system supplying various loads
2019 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 3, article id 514Article in journal (Refereed) Published
Abstract [en]

The Algerian power system is currently dominated by conventional (gas- and oil-fueled) power stations. A small portion of the electrical demand is covered by renewable energy sources. This work is intended to analyze two configurations of renewables-based hybrid (solar–wind) power stations. One configuration was equipped with batteries and the second with pumped-storage hydroelectricity as two means of overcoming: the stochastic nature of the two renewable generators and resulting mismatch between demand and supply. To perform this analysis, real hourly load data for eight different electricity consumers were obtained for the area of Mostaganem. The configuration of hybrid power stations was determined for a bi-objective optimization problem (minimization of electricity cost and maximization of reliability) based on a multi-objective grey-wolf optimizer. The results of this analysis indicate that, in the case of Algeria, renewables-based power generation is still more expensive than electricity produced from the national grid. However, using renewables reduces the overall CO 2 emissions up to 9.3 times compared to the current emissions from the Algerian power system. Further analysis shows that the system performance may benefit from load aggregation. 

Place, publisher, year, edition, pages
MDPI AG, 2019
National Category
Energy Engineering
Identifiers
urn:nbn:se:mdh:diva-42809 (URN)10.3390/en12030514 (DOI)000460666200182 ()2-s2.0-85061860639 (Scopus ID)
Available from: 2019-02-28 Created: 2019-02-28 Last updated: 2019-03-28Bibliographically approved
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