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Siemens inaugurates world’s largest electrothermal energy storage system
Renewable Energy World: Siemens Gamesa Renewable Energy (SGRE) said that is has begun operation of its electric thermal energy storage system (ETES), a milestone in the development of energy storage solutions, according to the company.
The heat storage facility is located in Hamburg-Altenwerder and contains around 1,000 tonnes of volcanic rock as an energy storage medium. It is fed with electrical energy converted into hot air by means of a resistance heater and a blower that heats the rock to 750°C. When demand peaks, ETES uses a steam turbine for the re-electrification of the stored energy.
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