Abstract: A method for setting up an electrical transportation infrastructure in a mine includes receiving mining data for different time periods of a mining interval. The data identifies expected source locations where material is extracted and destination locations where it is delivered. Using this data, a time-dependent 3D network of the mine is determined for each period, either as separate networks of paths connecting the source and destination locations or as a single network covering all periods. Based on this network, a planned placement of the electrical transportation infrastructure is numerically determined to at least approximately minimize the expected total costs of the mine over the mining interval. These costs include estimated environmental costs from transporting material between source and destination locations, subject to mining constraints. Finally, the electrical transportation infrastructure is initialized in the mine according to the planned placement.

Abstract: A method for use in controlling operation of a hydrogen production plant includes determining a maximum available amount of energy of a predetermined energy category in a current time interval; determining a target minimum amount of the energy of the predetermined energy category to be used for hydrogen production in the current time interval; and determining hydrogen setpoints for the current time interval using the maximum available amount and the target minimum amount as constraints.

Abstract: A computer-implemented method for controlling operation of an electrolyzer plant comprising one or more electrolyzer modules, each comprising at least one electrolyzer stack, includes determining, for each of the one or more electrolyzer modules, a target module setpoint by minimizing a total operational cost function associated with the operation of the electrolyzer plant, wherein the total operational cost function comprises overall degradation cost associated with the degradation of the one or more electrolyzer modules; and controlling each of the one or more electrolyzer modules to operate at the determined target module setpoint.

Abstract: A system for optimizing an energy management of a site, comprising: an energy optimizer, wherein the energy optimizer determines one or more optimization goals based on an optimization algorithm, a data variator adapted to provide at least one first energy data input and at least one second energy data input, different to the first energy data input, to the energy optimizer, wherein the energy optimizer receives the first and second energy data inputs from the data variator, and to determine, based the first and second energy data inputs, respective at least one first and second energy data outputs via the optimization algorithm, wherein a data sensitivity of the energy optimizer is determined with respect to the first and second energy data inputs and the first and second energy data outputs.

Abstract: A computer-implemented method for determining an energy load distribution in a system, comprising: receiving total energy load data of the system, wherein the total energy load data comprises individual energy load data of a plurality of assets; determining at least one energy load peak in the total energy load data; disaggregating the total energy load data into the individual energy load data of the plurality of assets; providing the disaggregated individual energy load data of the plurality of assets for further processing.

Abstract: A method for determining an energy ratio includes providing an energy network model configured to describe an energy flow between a plurality of assets in an energy network, the assets including energy sources and consumers; receiving load demand and power source data; controlling and tracking the first energy flow from the first energy source to the plurality of assets in the energy network and the second energy flow from the second energy source to the plurality of assets in the energy network based on the energy network model and the received load demand data and the received power source data; tracking one or more consuming times of the at least one energy consuming asset; and determining an energy ratio for the at least one energy consuming asset based on the tracked first energy flow and the second energy flow and the tracked consuming time of an energy consuming asset.

Abstract: The invention relates to an alkaline electrolyzer arrangement for producing hydrogen gas. The arrangement includes a first alkaline electrolyzer unit and a second alkaline electrolyzer unit, each one of the first and second alkaline electrolyzer units including a first end plate, a second end plate and a plurality of electrolyzer cells forming a cell stack arranged between the first and second end plates. The alkaline electrolyzer arrangement further including a load bearing surface arranged between the first alkaline electrolyzer unit and the second alkaline electrolyzer unit such that the second alkaline electrolyzer unit is arranged vertically above the first alkaline electrolyzer unit and is supported by the load bearing surface.

Abstract: A method for operating a plurality of electrolyzer-stacks includes determining a concentration of impurities, which is originated by a second reaction gas electrochemically produced at a second electrode type of each of the electrolyzer-stacks, within a first gas stream; generating a trigger signal if the concentration of the impurities of the second reaction gas within the merged first reaction gas exceeds a specific second reaction gas level; identifying at least one electrolyzer-stack out of the plurality of electrolyzer-stacks, which is low performing in respect to excessively feeding second reaction gas impurities into the first gas stream, by measuring a current density of at least one electrolyzer-stack of the plurality of electrolyzer-stacks, if the trigger signal is generated.

Abstract: A computer-implemented method for a plant operation optimization component includes determining optimal operation set points and, based on optimal operation set points and corresponding operational costs, providing output allowing for selecting a tariff.

Abstract: A method for establishing and/or improving a simulation model of an electrolyzer plant includes predicting one or more prediction values of at least one quantity; obtaining one or more measurement values of the same at least one quantity that relate to the same given operating state of the electrolyzer plant; determining at least one deviation of the one or more prediction values from the respective measurement values; determining from the deviation and the simulation model a contribution and/or an adjustment to the simulation model; and applying the contribution and/or the adjustment to the simulation model.

Abstract: A method for producing hydrogen using two types of electrolysis systems, the first having an active DC module and at least one first-type electrolyzer producing a first hydrogen output by using a first power from the active DC module, and the second electrolysis system having a passive DC module and at least one second-type electrolyzer producing a second hydrogen output by using a second power from the passive DC module. The method includes increasing the first hydrogen output and when it crosses a first predefined hydrogen output threshold, switching on the second electrolysis system and decreasing the first hydrogen output of the first electrolysis system to the first predefined hydrogen output threshold minus the second hydrogen output, so that an overall hydrogen output of the hydrogen production plant is a sum of the first hydrogen output and the second hydrogen output.

Abstract: A system and method for synthesizing energy time-series data for a facility includes a time-series generator configured to receive an input set of attributes comprising attributes characterizing the facility, and to output a synthesized time-series representing estimated energy data for the facility. The synthesized time-series are generated on the basis of the input set of attributes and one or more reference time-series associated with respective reference sets of attributes.

Abstract: A method for evaluating an energy efficiency of a second energy consumption scenario of a site includes obtaining a first energy consumption scenario, which comprises a first time-series of energy consumption data of at least one device, and a quality measure of the first energy consumption scenario; obtaining the second energy consumption scenario, which comprises a second time-series of energy consumption data, wherein the second energy consumption scenario has a same or a shorter duration than the first energy consumption scenario; comparing the second time-series of energy consumption data to the first time-series of energy consumption data; and if or when the second time-series of energy consumption data is similar to the first time-series of energy consumption data, outputting the quality measure of the first energy consumption scenario.