Abstract: A method for controlling a local distribution system's outtake of heat or cold from a thermal energy distribution grid.

Abstract: A method for handling surplus or deficit of energy in local energy systems (30) is presented. The method comprising; determining an accumulator status based on data pertaining to an accumulator (20) of a moveable device (10); determining energy status of each of a plurality of local energy systems (30) based on data pertaining to the respective local energy system 30; scoring, based on the determined accumulator status and the determined energy statuses, each of the local energy systems (30); determining, based on the respective scores of each of the plurality of local energy systems (30), a local energy system (30), among the plurality of local energy systems (30), to which the moveable device (10) is to be directed. Also a server (40) configured to handling surplus or deficit of energy in local energy systems is presented.

Abstract: The disclosure relates to a method for controlling a thermal distribution system. The method comprises producing heat at a production plant, and determining a capacity limit of the production plant. At a central server, the current and/or forecasted production of heat in the production plant in relation to the capacity limit of the production plant is evaluated. The method further comprises to in response to the current or forecasted production at the production plant approaching the capacity limit, output from the central server a respective control signal to one or more of a plurality of local control units, and receiving the control signal at the respective local control unit. The method further comprises to in response to receiving the control signal at the respective local control unit, reduce an associated local distribution system's outtake of heat or cold from a distribution grid connected to the production plant.

Abstract: The disclosure relates to a method for controlling a heat distribution system.

Abstract: A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100).

Abstract: The present invention relates to a method for controlling one or more heat pumps (110) connected to a distribution grid (10) for fluid-based distribution of heating and cooling in order to, at least partly, compensate for a cold outtake from the distribution grid (10) by a first cooling machine (120) connected to the distribution grid (10). Alternatively, or in combination, one or more cooling machines (120) connected to the distribution grid (10) may be controlled in order to, at least partly, compensate for a heat outtake from the distribution grid (10) by a first heat pump (120) connected to the distribution grid (10). The controlling is made a control server (200) monitoring outtake of heat and/or cold from the distribution grid (10) by the heat pumps (110) and cooling machines (120) connected to the distribution grid (10). The control server (120) generates and sends out control messages to the heat pumps and/or cooling machines.

Abstract: Disclosed is a valve assembly (100) for drainage or deaeration of a hydraulic system (114), The valve assembly (100) comprising: a valve (102) comprising a first side (104) and a second side (106), the first side (104) is configured to be connected to the hydraulic system (114) and the second side (106) is connected to a mouth piece (108), wherein the valve (102) is configured to be set in an open state or in a closed state, wherein, upon the valve (102) is set in the open state, fluid in the hydraulic system (114) is free to pass the valve (102) from the first side (104) to the second side (106); a valve assembly controller (110) comprising a transceiver (202) configured to receive a control signal indicating a start of drainage or deaeration of the hydraulic system (114) and a valve assembly control circuit (204) configured to execute: a valve control function (210) configured to set the valve (102) in the open state or closed state; and a drainage or deaeration function (212) configured to, based on the co

Abstract: A central controller for controlling power consumption in a thermal energy system is disclosed, the energy system may include a plurality of heat pump assemblies and a plurality of cooling machine assemblies, each heat pump assembly being connected to a thermal energy circuit comprising a hot conduit and a cold conduit via a thermal heating circuit inlet connected to the hot conduit and via a thermal heating circuit outlet connected to the cold conduit, each cooling machine assembly being connected to the thermal energy circuit via a thermal cooling circuit inlet connected to the cold conduit and via a thermal cooling circuit outlet connected to the hot conduit.

Abstract: 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.

Abstract: A district energy distributing system comprising a geothermal power plant comprising a first and a second circuit. The first circuit comprises a feed conduit for an incoming flow of geothermally heated water from a geothermal heat source; a boiler comprising a heat exchanger configured to exchange heat from the incoming flow of geothermally heated water to superheat a working medium of a second circuit of the geothermal power plant; and a return conduit for a return flow of cooled water from the boiler to the geothermal heat source. The second circuit comprises the boiler configured to superheat the working medium of the second circuit; an expander configured to allow the superheated working medium to expand and to transform the expansion to mechanical work; and a condenser configured to transform the expanded working medium to liquid phase and to heat a heat transfer fluid of a district thermal energy circuit.

Abstract: A district energy distributing system is disclosed. The system comprises a geothermal heat source system comprising a geothermal heat source and a feed conduit for a flow of geothermally heated water from the geothermal heat source. The system further comprises a district feed conduit, a district return conduit and a plurality of local heating systems, each having an inlet connected to the district feed conduit and an outlet connected to the district return conduit, wherein each local heating system is configured to provide hot water and/or comfort heating to a building, A central heat exchanger is connected to the feed conduit of the geothermal heat source system such that an incoming flow of geothermally heated water is provided to the central heat exchanger.

Abstract: 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.

Abstract: A combined cooling and heating system including a district cooling grid having a feed conduit for an incoming flow of cooling fluid having a first temperature, and a return conduit for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature; a local cooling system being configured to absorb heat from a first building and comprising a heat exchanger having a heat exchanger inlet and a heat exchanger outlet; and a local heating system being configured to heat the first or a second building and comprising a heat pump having a heat pump inlet and a heat pump outlet. The heat exchanger inlet is connected to the feed conduit of the district cooling grid; and the heat pump inlet is connected to the return conduit of the district cooling grid and to the heat exchanger outlet.

Abstract: The present invention relates to a distribution pump arrangement for a bi-directional hydraulic distribution grid (10).

Abstract: Disclosed is a method for controlling a control valve (110), wherein the control valve (110) is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (108). The method comprising: reviewing (S402) a demand signal for the control valve (110); checking (S404) if the demand signal is indicative of setting the control valve (110) in a hysteresis interval for the control valve (110); and upon the demand signal is indicative of setting the control valve (110) in the hysteresis interval, alternatingly (S406) setting the control valve (110) in an open state above the hysteresis interval and setting the control valve (110) in a closed state.

Abstract: A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits (3a, 3b), the pair of conduits (3a, 3b) being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space in between the pair of conduits (3a, 3b); and a second section (5b) filled with a filling material of a second type (4b). The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of a second type (4b) has a higher second thermal conduction coefficient. Further, a method for filling such a filled trench is disclosed.

Abstract: A method for identifying a deviation in a thermal energy circuit is presented.

Abstract: A local thermal energy consumer assembly and a local thermal energy generator assembly to be connected to a thermal energy circuit comprising a hot and a cold conduit. The local thermal energy consumer assembly is connected via a flow controller to the hot conduit. The local thermal energy generator assembly is connected via a flow controller to the cold conduit. The flow controller is selectively set in pumping mode or a flowing mode based on a local pressure difference between heat transfer liquid of the hot and cold conduits.

Abstract: A method for controlling a district thermal energy distribution system is presented. The method comprises: determining whether a local pressure difference between a feed line (111) and a return line (112) of a distribution grid (110) is below a predetermined threshold; upon the local pressure difference is determined to be below the predetermined threshold, generating a control signal comprising information instructing a local distribution system (150) to reduce outtake of heat or cold from the distribution grid (110); sending the control signal to a local control unit (140) of the local distribution system (150); and reducing, in response to the control signal, the outtake of heat or cold of the local distribution system (150) from the distribution grid (110). The distribution grid (110) may be a district heating grid or a district cooling grid. Also, a control server and a district thermal energy distribution system is presented.

Abstract: A method for controlling indoor climate in a portion (102) of a building (100) is presented. The method comprises: identifying (S402), based on a wireless communication based positioning function, electronic devices (204a, 204b, 204c) present in the portion (102) of the building (100); for each identified electronic device, determining whether the identified electronic device is associated with a user; determining (S406) an estimated total amount of heat dissipation present in the portion (102) of the building (100) based on an amount of heat dissipation associated with the respective user to which the respective identified electronic device is associated; and controlling (S408) indoor climate in the portion (102) of the building (100) based on the estimated total amount of heat dissipation present in the portion (102) of the building (100). Also, a server (106) and a system for performing the controlling are presented.