Power sector effects of green hydrogen production in Germany

Kirchem, Dana; Schill, Wolf-Peter

doi:10.1016/j.enpol.2023.113738

Cited by 9 publications

(2 citation statements)

References 42 publications

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“…For VRE portfolios across regions, weighting factors need to reflect both within-regional and across-regional shares in the capacity mixes. 7 Here we abstract from within-region grid congestion.…”

Section: Technological and Spatial Scope Of Analysismentioning

confidence: 99%

“…Because of their variable generation profiles, their system integration requires an increasing amount of temporal and spatial power sector flexibility. This includes, for example, different types of energy storage, demand-side flexibility, and geographical balancing [2][3][4][5][6][7]. While various implications of renewable variability have been explored in the literature, attention has recently shifted to the occurrence of prolonged periods with extremely low wind and/or solar availability, also referred to as "Dunkelflauten".…”

Section: Introductionmentioning

confidence: 99%

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Measuring the Dunkelflaute: How (not) to analyze variable renewable energy shortage

Kittel,

Schill

2024

Preprint

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As variable renewable energy sources increasingly gain importance in global energy systems, there is a growing interest in understanding periods of variable renewable energy shortage (''Dunkelflauten''). Defining, quantifying, and comparing such shortage events across different renewable generation technologies and locations presents a surprisingly intricate challenge. Various approaches exist in different bodies of literature, such as hydrology, wind and solar energy analysis, or energy system modeling. The subject of interest in previous analyses ranges from single technologies in specific locations to diverse technology portfolios across multiple regions, focusing either on supply from variable renewables or its mismatch with electricity demand. We provide an overview of methods for quantifying variable renewable energy shortage. We explain and critically discuss the merits and challenges of different approaches for defining and identifying shortage events and propose further methodological improvements for more accurate shortage determination. Additionally, we elaborate on comparability requirements for multi-technological and multi-regional energy shortage analysis. In doing so, we aim to contribute to unifying disparate methodologies, harmonizing terminologies, and providing guidance for future research.

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Section: Technological and Spatial Scope Of Analysismentioning

confidence: 99%