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Compressed air energy storage in sand, principles and field test

Jacco K. Haasnoot-2015-06-02-QRU Quaderns de Recerca en Urbanisme

TL;DRAbstract

Introduction The present public demand to use more renewable energy sources, from an environmental perspective and/or in order to become independent of (foreign) energy suppliers, brings challenges to the present electricity grid. The electricity output of the renewable sources fluctuates, depending on the sunshine and wind. At present this already leads to problems in balancing the electricity grid. With a more increasing use of renewable sources, the need for large scale electricity storage also increases. Compressed Air Energy Storage (CAES) is considered one of the most promising techniques for the storage of electricity to balance the fluctuating output of the renewable sources. A few CAES installations are at the moment in operation. However, their location depends on specific geological circumstances, such as hard rock caverns or rock salt solution cavities.

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Introduction The present public demand to use more renewable energy sources, from an environmental perspective and/or in order to become independent of (foreign) energy suppliers, brings challenges to the present electricity grid. The electricity output of the renewable sources fluctuates, depending on the sunshine and wind. At present this already leads to problems in balancing the electricity grid. With a more increasing use of renewable sources, the need for large scale electricity storage also increases. Compressed Air Energy Storage (CAES) is considered one of the most promising techniques for the storage of electricity to balance the fluctuating output of the renewable sources. A few CAES installations are at the moment in operation. However, their location depends on specific geological circumstances, such as hard rock caverns or rock salt solution cavities.

Keywords

Compressed air energy storageRenewable energyPumped-storage hydroelectricityElectricityEnergy storageCompressed airEnvironmental scienceWind power

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