Abstract: A thermal power station and method for generating includes (a) at least one thermal energy storage having a housing, a storage chamber and a fluid inlet port fluidically connected to the storage chamber and a fluid outlet port connected to the storage chamber, and (b) a Brayton cycle heat engine including gas turbine, a cooler and a compressor connected with each other by a closed cycle containing a second working fluid, (c) the Brayton cycle heat engine further includes a control unit arranged for operating the Brayton cycle heat engine according to a Brayton cycle, (d) the gas turbine is thermally coupled to the at least one thermal energy storage by a first heat exchanger and a first working fluid, the first working fluid being different, and (e) the gas turbine is connected to a generator for producing electrical power by the thermal energy from the thermal energy storage.

Abstract: Provided is a method for configuring a thermal energy storage system including the following steps: providing a thermal energy storage device for storing heat, providing a plurality of temperature sensors at different locations of the thermal energy storage device for measuring temperatures at the different locations, providing a control device of the thermal energy storage system for reading measurement data of the plurality of temperature sensors, generating a numerical model for at least one first temperature sensor of the plurality of temperature sensors based on the measured temperatures of the plurality of temperature sensors means of machine learning, and storing the numerical model by a control device, for configuring the thermal energy storage system, Furthermore, a thermal energy storage system and a method for operating a thermal energy storage system is also provided.

Abstract: Provided is a hydrogen production system including a thermal energy storage having a housing, a storage chamber with heat storage material inside the storage chamber and a fluid inlet port fluidically connected to the storage chamber and a fluid outlet port fluidically connected to the storage chamber, and at least one high temperature electrolyser for producing hydrogen, whereby the at least one high temperature electrolyser is thermally connected to the heat storage material of the storage chamber of the thermal energy storage. Several modes of operation are defined. A method for producing hydrogen in the hydrogen production system is also provided.

Abstract: Provided is a heat storage for a thermal energy storage plant including: a hollow housing including an inlet and an outlet, a granular material for storing heat housed in the hollow housing between the inlet and the outlet, the hollow housing defining a fluid passage for the circulation of a heat transporting fluid between the inlet and the outlet and through the granular material. The granular material subject to the gravity force forms at least one free surface respectively facing the inlet or the outlet the at least one free surface including a border in contact with the hollow housing and being inclined with respect to the gravity direction, the respective inlet or outlet being with respect to the gravity direction at a higher level than a lowest point of the at least one free surface.

Abstract: Provided is a thermal energy storage including a housing having a fluid inlet and a fluid outlet, and a thermal energy storage structure arranged within the housing between the fluid inlet and the fluid outlet, the thermal energy storage structure including thermal energy storage elements and flexible separator elements, the flexible separator elements being arranged such that the thermal energy storage elements are separated into layers, each layer forming a channel between the fluid inlet and the fluid outlet. Furthermore, a method of manufacturing a thermal energy storage and a power plant for producing electrical energy is provided.