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Observing the renewable energy transition from a European perspective

Carnot Battery

According to Robert Laughlin (Stanford University), winner of the Nobel Prize in Physics, power-heat-power storage units (known as Carnot batteries) will be the key technology for storing large quantities of energy in a carbon-neutral energy system of the future. In a Carnot battery, energy is converted into heat at a temperature between 90°C and 500°C by using a high-temperature heat pump. This heat is stored inexpensively in water (90°C) or molten salt (500°C) and reconverted into energy through a thermal power process, when required. A valuable added beneft of Carnot batteries is their ability to supply heat and cooling in addition to stored energy.

[dlr.de] – Carnot batteries – Low-cost and location-independent energy storage in the gigawatt hour range
[dlr.de] – Carnot Batteries
[iwcb2020.besl-eventservice.de] – 2nd International Workshop on Carnot Batteries 2020

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