Various embodiments of the teachings herein include a method for operating a network management system for a local energy network. The method may include determining a first operating strategy for an energy store of an electrical device of the local energy network based on a decision criterion using an electronic computing device of the network management system. The first operating strategy comprises a flexible storage strategy for storing energy in the energy store, the flexible storage strategy including a predefined flexibility criterion of the electrical device.

A heat pump assembly (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a cooling machine assembly (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough.

A chemical looping combustion (CLC) based power generation, particularly using liquid fuel, ensures substantially complete fuel combustion and provides electrical efficiency without exposing metal oxide based oxygen carrier to high temperature redox process. An integrated fuel gasification (reforming)-CLC-followed by power generation model is provided involving (i) a gasification island, (ii) CLC island, (iii) heat recovery unit, and (iv) power generation system. To improve electrical efficiency, a fraction of the gasified fuel may be directly fed, or bypass the CLC, to a combustor upstream of one or more gas turbines. This splitting approach ensures higher temperature (efficiency) in the gas turbine inlet. The inert mass ratio, air flow rate to the oxidation reactor, and pressure of the system may be tailored to affect the performance of the integrated CLC system and process.

A method including: operating a pumped-heat energy storage (“PHES”) system in a generation mode to generate electricity; and responsive, at least in part, to a determination that a power generation plant will reduce supply of electricity to an electrical grid by a reduction amount of electricity, changing modes of the PHES system from the generation mode to operate in a charge mode. Operating in the charge mode can include receiving a charge amount of electricity, at least equal to the reduction amount of electricity, into the PHES system from the power generation plant and converting at least a portion of the charge amount of electricity to stored thermal energy.

Various embodiments relate to combined heat and power (CHP) systems. A CHP system can include a turbine system, a turbocharger system, and a refrigeration system. The refrigeration system can receive combustion products from the turbine system and compressed air from the turbocharger system. The refrigeration system can cool the combustion products and the compressed air to generate a cooled combustion product mixture that is provided to the turbine system.

An energy storage includes a first container including an inner space, a plurality of pressure vessels for compressed air that are stacked in rows inside the inner space of the first container, a tank containing a heat transfer fluid arranged inside the inner space of the first container, a compressor adapted to compress air, and a plurality of pneumatic ducts for compressed air connected to the compressor. The plurality of pneumatic ducts includes a plurality of heat exchangers adapted to enable a heat exchange between compressed air contained in the plurality of pneumatic ducts and heat transfer fluid contained inside the tank. The plurality of pneumatic ducts is connected to the plurality of pressure vessels supplying pressure vessels with compressed air, an electric turbine connected by the plurality of pneumatic ducts with the plurality of pressure vessels supplying compressed air for rotating the electric turbine to generate electric current.

A system for generating electricity, heat, and desalinated water having a gas turbine system connected to a first electric generator, a waste heat recovery boiler (WHRB) system, a combined heat and power (CHP) generation system connected to a second electric generator, one or more solar powered energy systems, and a desalination system. The desalination system is connected to the CHP generation system and the WHRB system. The gas turbine system generates electricity and heat, the WHRB system is connected to and uses the exhaust of the gas turbine system to provide heat and steam power to the CHP generation system. The CHP generation system produces and provides electricity and heat to the desalination system, which produces product water, and at least one solar powered energy system provides thermal energy to one or more of the gas turbine system, the WHRB system, the CHP generation system, and the desalination system.

A heat extracting system (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a heat depositing system (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature. Also a heat depositing system (200) is disclosed.

Auxiliary system for a low-temperature remote thermal energy distribution network (anergy network) connected to user thermal installations, comprising one or more heat pumps thermally coupled to the anergy network via a heat exchanger, one or more air-liquid heat exchangers thermally coupled to the outside air, and a hydraulic network interconnecting the heat pumps to the heat exchanger of the anergy network, at least one of the heat pumps being a liquid-air heat pump fluidically connected by the hydraulic network to at least one of said air-liquid heat exchangers. The auxiliary system further comprises a measurement, control and regulation (MCR) system. The hydraulic network comprises valves controlled by the MCR system and a hydraulic circuit configured to allow direct connection of said air-liquid heat exchangers to the heat exchanger of the anergy network.

In a method for setting up a pipeline section of a pipe system in a heat network, which is provided for transferring a heat transfer fluid between a heat provider and a heat consumer, the pipeline section is subdivided into segments in a segmentation step. A segment characteristic variable is determined for each segment based on a physical soil characteristic variable. The determined segment characteristic variables of two adjacent segments differ by more than a predefined segment characteristic variable difference value. In a bedding determination step, segment embedding of a pipeline segment, introduced in the trench in this segment, in a water-permeable segment bedding material is predefined for each segment such that a heat loss of the heat transfer fluid transferred in the pipeline segment, which is averaged over the segment and is based on a unit of length, is lower than a predefined heat loss limit value.