Energy storage
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- See also: Nuclear_power_reconsidered
This article is a brief summary of the technologies relevant to the large-scale energy storage[1] needed for wind and solar and other intermittent energy sources.
Pumped hydro
Thermal
Hydrogen
Comparison of specific energy (energy per mass or gravimetric density) and energy density (energy per volume or volumetric density) for several fuels.[2]
Hydrogen energy storage may become an important competitor to pumped hydro and thermal, if high-temperature nuclear reactors become available. The readily available high-temperature heat from these reactors will offset the inefficiency of generating the hydrogen from water.