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compressed air storage
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The use of off-peak electricity to compress air, which is then stored underground, for example in a disused mine, a specially created cavern, or a natural geological feature. When electricity demand is high, the compressed air is burned with natural gas to run a turbine and generate electricity. Plants are designed to operate on a daily cycle, charging at night and discharging during the day. Installations exist in Huntorf, Germany, and McIntosh, Alabama. A facility is also under development in Norton, Ohio.
Related entry
• Renewable energy storage system
Related categories
• ELECTRICITY GENERATION AND SUPPLY
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