Pumped Storage and Compressed Air Storage, A Comparison

by A. H. Makarechian, Stone & Webster Engineering, Corp, Denver, CO, USA,
G. C. K. Grinnell, Stone & Webster Engineering, Corp, Denver, CO, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract: Pumped storage hydroelectric power plants and compressed air energy storage (CAES) plants are used for peaking and intermediate duty on electrical utility load systems. In comparing pumped storage with CAES, the development stage of the two technologies should be kept in mind. Pumped storage is a fully mature technology. CAES utilizes components of tested and mature technologies. However, CAES is a relatively new technology compared to pumped storage and only a limited number of CAES plants have been built. Both pumped storage and CAES have exacting site requirements. A conventional pumped storage project can not be located in an area without mountains and valleys.

Subject Headings: Energy storage | Electric power | Waste storage | Power plants | Hydro power | Water storage | Pumping stations | Comparative studies | Compression | Electrical systems | California

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