On the spatiotemporal variability and potential of complementarity of wind and solar resources

Schindler, Dirk; Behr, H.; Jung, Christopher

doi:10.1016/j.enconman.2020.113016

Cited by 54 publications

(18 citation statements)

References 41 publications

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“…In [30], a study for the complementarity of wind and solar resources over Mexico is performed using GIS-based software with highresolution maps. A systematic quantitative analysis of the complementarity characteristics of solar and wind resources on the Australian continent is performed in [31], exhibiting the spatio-temporal synergy of the two sources, while in [32], the spatio-temporal complementarity of solar and wind power is studied at different time scales for Germany. Relevant assessments were also carried out for offshore regions of China, where wind power is always negatively correlated with photovoltaic power on the hourly, daily and monthly time scales [33].…”

Section: Synergy and Complementaritymentioning

confidence: 99%

Offshore Wind and Wave Energy Complementarity in the Greek Seas Based on ERA5 Data

2021

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In this work, 20 years (2000–2019) of ERA5 wave and wind data are analyzed and evaluated for the Greek Seas by means of in-situ measurements derived from the POSEIDON marine monitoring system. Four different statistical measures were used at six locations, where in-situ wind and wave measurements are available from oceanographic buoys. Furthermore, the ERA5 wind and wave datasets were utilized for the estimation of the available wind and wave energy potential for the Greek Seas, as well as for the assessment of complementarity and synergy between the two resources. In this respect, an event-based approach was adopted. The spatial distribution of the available wind and wave energy potential resembles qualitatively and quantitatively the distributions derived from other reanalysis datasets. Locations with high synergy and complementarity indices were identified taking into account water depth. Finally, taking into consideration a particular offshore wind turbine power curve and the power matrix of the PELAMIS wave energy converter, the estimation of the combined energy potential on a mean annual basis is performed.

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Section: Synergy and Complementaritymentioning

confidence: 99%

Offshore Wind and Wave Energy Complementarity in the Greek Seas Based on ERA5 Data

2021

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“…[4]. Many previous studies have explored the spatial and/or temporal variability of VRE resources across the globe (see [5][6][7][8][9][10]). The intermittency of VRE can typically lead to drastic and sudden changes in power production over the year-an issue that is critical for the reliability of the power system [11].…”

Section: Reliability and Serviceability Of Decentralized Energy Systems In Low-resource Periodsmentioning

confidence: 99%

The Impact of Low-Resource Periods on the Reliability of Wind Power Systems for Rural Electrification in Africa

et al. 2021

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Decentralized electricity systems based on variable renewable energy (VRE) sources such as wind power can provide affordable, dependable, and modern energy in a manner consistent with the Paris Agreement. Such sources are, however, sensitive to extreme values of climatic factors—an issue that may jeopardize power system reliability. As a resource-rich region with a high proportion of rural population without access to electricity, Africa has been of wide interest in studies on VRE-based electricity generation. Nevertheless, there is still a major gap in our continent-scale understanding of the wind power potential and its variability at different time scales, as well as the influence of low-wind-resource periods in Africa. Using ERA5 hourly estimates of wind speed, the present study investigated the adequacy and temporal variability of local wind power potential across Africa over the 2000–2017 period. The results indicated that design requirements of wind power systems are, on average, fulfilled in regions in the North, South, and Horn of Africa at different time scales. However, low-resource periods were shown to have a significant impact on the reliability of wind power potential in the majority of the continent. Demand flexibility can reduce the severity of these periods and help to achieve design requirements.

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“…Not only does their availability often not match demand, but they also increase variability on the supply side. This situation calls for greater power-system flexibility, which can be achieved in many ways by, for example, the integration of energy systems (sector coupling) [7] as well as methods like fuel shifting [8], energy storage [9], demand response [10] or hybrid energy systems, based on complementarity of renewable resources [11,12]. For instance, Sun et al [13] explored how the complementarity of grid-connected hybrid solar-wind systems could improve the exploitation of these resources.…”

Section: Introductionmentioning

confidence: 99%

Complementarity and ‘Resource Droughts’ of Solar and Wind Energy in Poland: An ERA5-Based Analysis

et al. 2021

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In recent years, Poland has experienced a significant increase in the installed capacity of solar and wind power plants. Renewables are gaining increasing interest not only because of Poland’s obligations to European Union policies, but also because they are becoming cheaper. Wind and solar energy are fairly-well investigated technologies in Poland and new reports are quite frequently added to the existing research works documenting their potential and the issues related to their use. In this article, we analyze the spatial and temporal behavior of solar and wind resources based on reanalysis datasets from ERA5. This reanalysis has been selected because it has appropriate spatial and temporal resolution and fits the field measurements well. The presented analysis focuses only on the availability of energy potential/resources, so characteristics intrinsic to energy conversion (like wind turbine power curve) were not considered. The analysis considered the last 40 years (1980–2019) of available data. The Spearman coefficient of correlation was considered as a complementarity metric, and the Mann–Kendal test was used to assess the statistical significance of trends. The results revealed that: The temporal complementarity between solar and wind resources exists mostly on a seasonal scale and is almost negligible for daily and hourly observations. Moreover, solar and wind resources in joint operation exhibit a smoother availability pattern (assessed based on coefficient of variation). Further findings show that the probability of ‘resource droughts’ (periods when cumulative generation was less than arbitrary threshold) lasting one day is 11.5% for solar resources, 21.3% for wind resources and only 6.2% if both resources are considered in a joint resource evaluation. This situation strongly favors the growth of local hybrid systems, as their combined power output would exhibit lower variability and intermittency, thus decreasing storage demand and/or smoothing power system operation.

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On the spatiotemporal variability and potential of complementarity of wind and solar resources

Cited by 54 publications

References 41 publications

Offshore Wind and Wave Energy Complementarity in the Greek Seas Based on ERA5 Data

Offshore Wind and Wave Energy Complementarity in the Greek Seas Based on ERA5 Data

The Impact of Low-Resource Periods on the Reliability of Wind Power Systems for Rural Electrification in Africa

Complementarity and ‘Resource Droughts’ of Solar and Wind Energy in Poland: An ERA5-Based Analysis

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