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  A new approach for assessing synergies of solar and wind power: implications for West Africa

Sterl, S., Liersch, S., Koch, H., Lipzig, N. P. M. v., Thiery, W. (2018): A new approach for assessing synergies of solar and wind power: implications for West Africa. - Environmental Research Letters, 13, 9, 094009.
https://doi.org/10.1088/1748-9326/aad8f6

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Sterl, S.1, Autor
Liersch, Stefan2, Autor              
Koch, Hagen2, Autor              
Lipzig, N. P. M. van1, Autor
Thiery, W.1, Autor
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Zusammenfassung: West African countries' energy and climate policies show a pronounced focus on decarbonising power supply through renewable electricity (RE) generation. In particular, most West African states explicitly focus on hybrid mixes of variable renewable power sources—solar, wind and hydropower—in their targets for the electricity sector. Hydropower, the main current RE resource in West Africa, is strongly sensitive to monsoon rainfall variability, which has led to power crises in the past. Therefore, solar and wind power could play a stronger role in the future as countries move to power systems with high shares of RE. Considering the policy focus on diversified RE portfolios, there is a strong need to provide climate services for assessing how these resources could function together in a power mix. In this study, climate data from the state-of-the-art ERA5 reanalysis is used to assess the synergies of solar photovoltaic (PV) and wind power potential in West Africa at hourly resolution. A new metric, the stability coefficient C stab, is developed to quantify the synergies of solar PV and wind power for achieving a balanced power output and limiting storage needs. Using this metric, it is demonstrated that there is potential for exploiting hybrid solar/wind power in a larger area of West Africa, covering more important centers of population and closer to existing grid structures, than would be suggested by average maps of solar and wind resource availability or capacity factor for the region. The results of this study highlight why multi-scale temporal synergies of power mixes should be considered in RE system planning from the start.

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 Datum: 2018
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1088/1748-9326/aad8f6
PIKDOMAIN: Climate Impacts & Vulnerabilities - Research Domain II
eDoc: 8177
Research topic keyword: Energy
Research topic keyword: Mitigation
Research topic keyword: Sustainable Development
Regional keyword: Africa
Organisational keyword: RD2 - Climate Resilience
Working Group: Hydroclimatic Risks
 Art des Abschluß: -

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Titel: Environmental Research Letters
Genre der Quelle: Zeitschrift, SCI, Scopus, p3, oa
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Seiten: - Band / Heft: 13 (9) Artikelnummer: 094009 Start- / Endseite: - Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/150326