Abstract: Provided herein are systems and methods for generating hydrogen and ammonia. The hydrogen is generated in an anion exchange membrane-based electrochemical stack. The hydrogen generated in the stack may be used to generate ammonia or may be used for other applications requiring hydrogen. The feedstock for the anion exchange membrane-based electrochemical stack may be saline water, such as seawater. A desalination module or a chlor-alkali stack may be used to treat the saline water prior to electrolysis in the anion exchange membrane-based electrochemical stack.

Abstract: The systems and methods described herein provide for control of hydrogen generation based on one or more characteristics of an input power signals, including a voltage of the input power signal and/or a frequency of the input power signal. The hydrogen generation system may be controlled in response to a reactive power consumption of the hydrogen generation system and/or a reactive power component of a power grid providing energy to the hydrogen generation system. In one embodiment, the hydrogen generation system may be controlled to generate reactive power in circumstances in which a voltage an input power signal is less than or more than a voltage range. In another embodiment, the hydrogen generation system may control hydrogen production based on a frequency of the input power signal.

Abstract: Systems and techniques are described herein for controlling hydrogen production. For instance, a method for controlling hydrogen production is provided. The method may include determining an amount of power for a hydrogen-production installation to consume based on one or both of an amount of power produced by a power producer or an amount of power consumed by a power consumer; and controlling hydrogen production at one or more electrolyzers of the hydrogen-production installation such that the one or more electrolyzers consume substantially the determined amount of power.

Abstract: The systems and methods described herein provide for a mission critical control of a hydrogen generation system to ensure a downstream receiver receives a critical amount of hydrogen from the system and/or a hydrogen storage tank. In one implementation, a status of a hydrogen storage tank may be compared to a mission critical threshold value and hydrogen may be supplied to the tank to ensure the hydrogen does not fall below the threshold value. Further, the hydrogen generator may utilize reliable sources of energy, such as grid power, to refill a storage tank in response to the tank being below a threshold value. At other times, however, the hydrogen generator may utilize renewable sources of energy to provide a more eco-friendly hydrogen producing system.

Abstract: A system and method of power management for a power generation system is disclosed. A method of power management for a hydrogen generation system including one or more electrochemical stacks, the one or more electrochemical stacks receiving power from an electrical grid including at least one power source, includes: receiving a frequency or voltage reference value for the hydrogen generation system; continually monitoring a frequency or voltage of the electrical grid; and varying a load of the hydrogen generation system in response to the frequency or voltage of the electrical grid differing from the frequency or voltage reference value to restore the frequency or voltage of the electrical grid to the frequency or voltage reference value.

Abstract: The systems and methods described herein provide for a hydrogen generation system that includes one or more gas-detecting sensors for measuring the concentration of gases within or associated with the hydrogen generation system. The obtained measurements may be utilized for many purposes by a controller or control system of the hydrogen generator. When such concentrations are measured, one or more remedial actions may be executed on the generator to prevent the unsafe operating condition. Further, many such safety gas sensors may be associated with a corresponding redundant gas sensor such that measurements from the gas sensor and the redundant gas sensor may be compared to determine a difference between the two measurements which may indicate an operational state of the hydrogen generator. The gas measurements from the sensors may also be analyzed to obtain data and information of an operational status of the hydrogen generator.

Abstract: A method and system for distributing power to a hydrogen generation system including a plurality of electrochemical stacks is disclosed. The method includes receiving a hydrogen generation request including an amount of hydrogen to produce during a particular time interval; receiving status data regarding the plurality of electrochemical stacks; selecting a set of electrochemical stacks of the plurality of electrochemical stacks that can fulfil the hydrogen generation request based, at least in part, on the status data; selecting a power distribution for the set of electrochemical stacks; and coupling the set of electrochemical stacks to the selected power distribution.

Abstract: The systems and methods described herein provide high-precision control of hydrogen generation and electricity use, thereby increasing the efficiency of the overall process. The system may include a power source that includes a rectifier for converting an alternating current input power signal to a direct current power signal. The direct current power signal may also be converted to a voltage level through a converter as an output to a vehicle network. A hydrogen generating system may also produce and provide hydrogen to the vehicle network. In some implementations, the vehicle network may include one or more electrical vehicles, hydrogen fuel-based vehicles, or hybrid hydrogen/electrical vehicles.

Abstract: Systems and techniques are described herein. For instance, a method for producing hydrogen is described. The method includes determining an amount of reactive power for an electrolyzer of a hydrogen-production installation connected to a power grid to generate, or to consume; and controlling operations of the electrolyzer such that electrolyzer generates, or consumes, substantially the determined amount of reactive power. Additionally, a system for producing hydrogen is described. The system includes a connection to a power grid configured to receive electrical power from the power grid; one or more electrolyzers configured to receive the electrical power and to produce hydrogen; and a controller configured to: determine an amount of reactive power for the one or more electrolyzers to generate, or to consume; and control respective operations of the one or more electrolyzers such that the one or more electrolyzers collectively generate, or consume, substantially the determined amount of reactive power.

Abstract: Systems and techniques for monitoring, assessing, and/or controlling hydrogen production are described. For instance, a system for monitoring, assessing, and/or controlling hydrogen production may include: a plurality of electrolyzers; and a controller configured to: obtain raw data indicative of respective operations of respective electrolyzers of the plurality of electrolyzers over a period of time; obtain command data indicative of one or more commands provided to the plurality of electrolyzers over the period of time; obtain event data indicative of one or more events related to the plurality electrolyzers that occurred during the period of time; generate state data based on the raw data, the command data, and the event data, the state data comprising a respective state of each electrolyzer of the plurality of electrolyzers for each of a number of discrete time periods of the period of time; and perform one or more operations responsive to the state data.

Abstract: The present disclosure relates to systems and methods for controlling hydrogen stack power and load. The systems include at least one hydrogen stack, a pressure sensor, and a controller, wherein the controller is operable to increase or decrease the power to the at least one hydrogen stack in response to a change in pressure. The methods include generating hydrogen using at least one hydrogen stack, measuring the pressure of the generated hydrogen, and increasing or decreasing the power supplied to the at least one hydrogen stack in response to an increase or decrease in the pressure.

Abstract: A system for hydrogen recovery includes a dryer having an inlet that may be fluidly connected to a hydrogen outlet of a hydrogen generator, a hydrogen using device having an inlet fluidly connected to a dry hydrogen outlet of the dryer, and one or more conduits fluidly connecting a wet hydrogen outlet from the dryer and an impure hydrogen exhaust outlet of the hydrogen using device to the inlet of the dryer.

Abstract: Provided herein are systems and methods for generating gas and delivering the gas at multiple output pressures. The system includes a plurality of gas generators and a plurality of applications, each application having a different header pressure. A plurality of header valves directs the gas flow to the plurality of applications such that energy loss is minimized.

Abstract: A computer-implemented method for dynamically controlling a plurality of photovoltaic (PV) inverters is provided. The method is implemented by a dynamic photovoltaic (DP) controller in communication with a user interface. The method includes receiving, from an electrical meter, an electrical value of a plurality of electrical values associated with an inverter of the plurality of PV inverters, where the electrical meter is associated with point of interconnection between the plurality of inverters and an electrical grid, calculating, an electrical metric based on the electrical value, generating, a command signal for the inverter based on the calculated electrical metric, transmitting the command signal to the inverter, the command signal configured to change an output power level of the inverter, and causing the inverter to change the power level via the command signal.