By Hans De Keulenaer / Published on Wed, 2008-04-30 19:18
Decentralised production means greater stability problems for the electricity system. This paper investigates a wide range of storage solutions. Rather than just looking at storage capacity or economics, it considers the very different technical characteristics of storage options in terms of available power, efficiency, durability and reliability.
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By Hans Nilsson / Published on Tue, 2007-07-17 07:00
We thought that we had seen everything, but there is still are still new things, such as a car running on air! Well, compressed air, that is, but nevertheless...
It is calles City-CAT, probably because both speed and range will be limited, and was presented at the Barcelona car show several years ago. The development seems to have come to a standstill, but you never know. Given the air-pollution many cities have, there could still be an interest somewhere.
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By Bruno De Wachter / Published on Mon, 2007-02-26 08:30
New compressed air storage plant announced in Iowa
In Iowa, USA, municipal utilities have announced plans to build a 269 megawatt plant for compressed air energy storage underground. The goal is to overcome the constant variations in the output of wind turbines. Construction of the plant will begin in 2009 and be completed by the end of 2011.
Electricity generated by wind farms at remote sites will be used for driving giant compressors at the storage site. The compressors will pump air into the ground, where it will be stored in porous rock formations. The air will be converted back into electricity by releasing the pressure and allowing the air to drive generator turbines.
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