Energy storage power plant and method for operating such a power plant
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United States of America Patent
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Jan 3, 2017
Grant Date -
Jan 29, 2015
app pub date -
Mar 12, 2013
filing date -
Mar 15, 2012
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Abstract
An energy storage power plant for harvesting electric energy, and suitable for converting electric energy into thermal energy is provided. The thermal energy can be temporarily stored in at least two thermal stores until demanded and retrieved to increase the energy content of water in a water circuit upon demand. The power plant has the at least two thermal stores, each has at least one converting device that allows electric energy to be directly or indirectly converted into thermal energy, the thermal stores being thermally chargeable by temporarily storing thermal energy, wherein one thermal store is for storing sensible heat and one thermal store is for storing latent heat; and at least one energy generating unit operated using the water in the water circuit, the energy content of the water having been increased by the temporary storage of thermal energy, in order to generate electric energy when operated.
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