Energy Storage by Manuel Bailera & Pilar Lisbona & Begoña Peña & Luis M. Romeo

Author:Manuel Bailera & Pilar Lisbona & Begoña Peña & Luis M. Romeo
Language: eng
Format: epub
ISBN: 9783030465278
Publisher: Springer International Publishing

3.1 Power to Gas Within the Context of Hybrid Technologies for Storing Energy and CO2

The Power to Gas concept, understood as an option to store both renewable energy and carbon dioxide in the form of methane, was first proposed by Koji Hashimoto in 1994 [1]. The difficulties associated to long-distance electricity transport in Japan inspired the research on energy carriers. The combination of electrolysis—driven by solar energy—and Sabatier reaction allowed the synthesis of methane and, thus, the distribution of renewable energy without requiring new infrastructures. Moreover, as CO2 is recycled, the global warming would be mitigated in some extent [2]. Later, in 2009, Michael Sterner refreshed the Power to Gas concept to focus on the management and long-term storage of renewable power surplus, rather than on electricity transportation or CO2 recycling [3].

Nowadays, a large number of techniques involve a simultaneous storage of carbon dioxide and renewable energy in the form of a valuable product. To put Power to Gas in context, Fig. 3.1 presents a classification of these processes.

Fig. 3.1Techniques for hybrid storage of renewable energy and CO2

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