Energy Storage – Chances, Challenges and State of the Art


This challenge was introduced by Lukas Tomberg, Researcher, RWI Leibniz Institute for Economic Research in Essen.


The expansion of renewable energy is a source of increasingly volatile electricity supply. This volatility endangers grid stability, with higher risks of black- and brownouts.


Electricity storage could solve this problem by introducing the possibility of storing electricity in times when renewable energies like wind and sunshine are in abundance and by drawing down stored electricity when there is a shortage.


The analysis and promotion of innovation in the area of energy storage, as well as the development of other measures to address the increasingly volatile electricity supply, is a topic of applied economics and the focus of this YES-Challenge.


What are technical approaches to energy storage?

Which of these approaches are promising?


What is meant by the term “Power to X”?

What are the advantages as well as the disadvantages of this approach?


Which political measures could foster innovation in the area of energy storage?

What are the respective cost, chances and risks of these measures?


Which consequences regarding Germany’s energy transition would the market maturity of energy storage entail?


Which alternative measures could solve the problems of increasingly volatile electricity supply?

Recommended literature


Agentur für Erneuerbare Energien (2016): Flexibilität durch Kopplung von Strom, Wärme & Verkehr, Metaanalyse, April 2016.



Agora Energiewende (2014). Stromspeicher in der Energiewende – Untersuchung zum Bedarf an neuen Stromspeichern in Deutschland für den Erzeugungsausgleich, Systemdienstleistungen und im Verteilnetz. Berlin,September 2014.



Brunner, C., Michaelis, J., & Möst, D. (2015). Competitiveness of different operational concepts for power-to-gas in future energy systems. Zeitschrift für Energiewirtschaft, 39(4), 275-293.



Brunner, C., & Müller, T. (2015). Kostenvergleich von unterschiedlichen Optionen zur Flexibilisierung des Energiesystems. et Energiewirtschaftliche Tagesfragen, 65(6).



Regett, A., Pellinger, C., & Eller, S. (2014). Power2Gas-Hype oder Schlüssel zur Energiewende?. Energiewirtschaftliche Tagesfragen, 64(10).



3. Energiepolitischer Workshop “Energiespeicher – das Stiefkind der deutschen Energiewende” 16. September 2014. ifo Institut und Hochschule Weihenstephan-Triesdorf;

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