Ways of storing energy as motion, pressure or cold rather than chemistry, including pumped storage hydropower, flywheels, compressed air, liquid air, steam accumulators and gas holders. A technology belongs here when its cited article describes such a mechanical, pressure or cryogenic store or the gas it stores. It excludes batteries and thermal stores. These stores hold energy as height, rotation, pressure or cold, and return it by releasing water, spinning a rotor, expanding gas or boiling a liquid. A technology is placed here by the storage mechanism the cited article describes.
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Mechanical and Gas Storage Systems
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Wikipedia: Pumped-storage hydroelectricity
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Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing.
Wikipedia: Flywheel energy storage
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Flywheel energy storage (FES) works by spinning a rotor (flywheel) and maintaining the energy in the system as rotational energy.
Wikipedia: Compressed-air energy storage
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Compressed-air-energy storage (CAES) is a way to store energy for later use using compressed air.
Wikipedia: Cryogenic energy storage
WikipediaHas Member: Liquid Air Energy Storage, LeadQuote, Has Member: Liquid Air Energy Storage, Lead
Cryogenic energy storage (CES) is the use of low temperature (cryogenic) liquids such as liquid air or liquid nitrogen to store energy.
Wikipedia: Gas holder
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A gas holder or gasholder, also known as a gasometer, is a large container in which natural gas or town gas (coal gas or formerly also water gas) is stored near atmospheric pressure at ambient temperatures.
Wikipedia: Compressed air
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Compressed air is air kept under a pressure that is greater than atmospheric pressure.
Liquid air - Wikipedia
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Liquid air is air that has been cooled to very low temperatures (cryogenic temperatures), so that it has condensed into a pale blue mobile liquid.
Compressor - Wikipedia
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A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
Gravity battery, Wikipedia
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A gravity battery is a type of energy storage device that stores gravitational energy-the potential energy given to an object when it is raised against the force of gravity.
Wikipedia: Hydraulic accumulator
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A Hydraulic accumulator is a pressure storage reservoir in which an incompressible hydraulic fluid is held under pressure that is applied by an external source of mechanical energy.
Gas cylinder - Wikipedia
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A gas cylinder is a pressure vessel for storage and containment of gases at above atmospheric pressure.
Wikipedia: Cascade filling system
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A cascade filling system is a high-pressure gas cylinder storage system that is used for the refilling of smaller compressed gas cylinders.
Wikipedia: Air compressor
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An air compressor is a machine that takes ambient air from the surroundings and discharges it at a higher pressure.
Wikipedia: Dry-seal Wiggins gasholder
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A dry-seal Wiggins gasholder is a device designed to hold gas.
Kinetic energy recovery system - Wikipedia
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A kinetic energy recovery system (KERS) is an automotive system for recovering a moving vehicle's kinetic energy under braking.
Hydrogen storage, Wikipedia
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Several methods exist for storing hydrogen.
Wikipedia: Trompe
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A trompe is a water-powered air compressor, commonly used before the advent of the electric-powered compressor.
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