Various embodiments include methods for controlling energy conversion, energy storage, energy transportation, and/or energy consumption of multiple energy installations of an energy system and/or of multiple consumers flexible with regard to their load. The method may include: optimizing values of variables for control by calculation based on a first and a second optimization variable; calculating multiple solutions of the values optimum with regard to the first optimization variable, using a first optimization; ascertaining one of the calculated solutions as optimum with regard to the second optimization variable using a second optimization; and using the optimum calculated solution for controlling the energy system.

An offshore water production facility to be located on a body of water includes a floating object, at least one wind turbine, a power generator that is coupled to the wind turbine and a water production system. The floating object includes a plurality of buoyancy assemblies that support at least one column on which a wind turbine is mounted. On the at least one column further a process equipment deck is mounted below an operating area of the wind turbine and above a water surface level. The water production system is arranged on the process equipment deck, and the water production system is configured for subsea well water-injection and includes an ultra-filtration unit and a membrane de-aeration unit for water to be injected.

The present invention relates to novel lignin-derived compounds and compositions comprising the same and their use as redox flow battery electrolytes. The invention further provides a method for preparing said compounds and compositions as well as a redox flow battery comprising said compounds and compositions. Additionally, an assembly for carrying out the inventive method is provided.

A method for assembling and installing arrays (1) of photovoltaic solar panels (P) in an outdoor field, includes a first step of assembling an array (1) of photovoltaic solar panels, which is carried out with the aid of at least one robot (R) in a transportable station (S1), located adjacent to the installation field (F). In a second step the assembled array (1) of photovoltaic solar panels is transported from the station (S1) to the site of installation of the array (1) of photovoltaic solar panels with the aid of a motorized carriage (V) controlled by an operator external to the carriage. Finally, the method includes a third step of assembling the array (1) of photovoltaic solar panels thus transported, wherein the array (1) of photovoltaic solar panels is mounted on support structures (5) previously prepared in the installation field (F).

An energy combiner apparatus is used to convert output of a power supply, and has three output terminals, so that output ports are increased. In the three output terminals of the energy combiner apparatus, a voltage of 1500 V is output between a first output terminal and a second output terminal, a voltage of 1500 V is also output between the second output terminal and a third output terminal, and a total of 3 kV is output. Therefore, an overall output voltage is increased in a case of equal output power. Because the overall output voltage is increased, a current transmitted on a cable may be reduced. Therefore, a thinner cable may be used, so that costs of the cable are reduced. In addition, four cables conventionally required for connecting to the output terminals of the energy combiner apparatus are reduced to three, so that quantity and costs are reduced.

There is provided a method of controlling an industrial gas plant complex comprising a plurality of industrial gas plants powered by one or more renewable power sources, the method being executed by at least one hardware processor, the method comprising receiving time-dependent predicted power data for a pre-determined future time period from the one or more renewable power sources; receiving time-dependent predicted operational characteristic data for each industrial gas plant; utilizing the predicted power data and predicted characteristic data in an optimization model to generate a set of state variables for the plurality of industrial gas plants; utilizing the generated state variables to generate a set of control set points for the plurality of industrial gas plants; and sending the control set points to a control system to control the industrial gas plant complex by adjusting one or more control set points of the industrial gas plants.

A structure, system, and method utilize horizontal hole cavities on the moon for constructing dwellings, shopping areas, factories, industrial and power plants, government offices, towns, and for unmanned robot devices where cosmic rays and ultraviolet are not directly incident. The horizontal hole cavities are also utilized to store trash such as all waste materials on the earth including waste or trash, hazardous materials, and radioactive waste as well as all waste materials on the moon including such things as waste or trash, hazardous materials, and radioactive waste. The radioactive waste includes spent fuel, radioactive soil, radioactive liquid, and radioactive material produced by nuclear power plants during normal and accident conditions. The vertical hole cavities are utilized for building elevators and stairs, and pipes supplying oxygen produced by photosynthesis devices on the moon's surface and carbon dioxide produced by humans in the cavity are used as conduits.

An apparatus provides a single split-bus electrical panel with a first panel section that supplies power to non-critical loads and a second panel section to supply photoelectric power to critical loads. A patch panel associated with the split-bus electrical panel is configured to enable an installer to selectively connect factory installed connections to either: (1) connect each panel section directly to utility power for full utility power to both panel sections; (2) alternately to connect the second panel section to the utility power via a microgrid interconnection device when the second panel section is presently at least partially powered by back-up photovoltaic power, or (3) alternately connect both panel sections to full back-up photovoltaic power.

A system for providing a rapid threshold amount of power to a customer load during transfer between a primary power supply and a secondary power supply is disclosed. The system is electrically connected between a customer metering system and the customer load. The system includes a secondary power supply not in electrical connectivity with the primary power supply. The secondary power supply includes a secondary power supply source for generating electrical power, a switching module, and an energy storage system in electrical communication with the secondary power supply source and the switching module. The energy storage system includes a high discharge battery and is configured to rapidly discharge power to the customer load when the switching module switches between the primary power supply and the secondary power supply. The switching module includes at least one set of contacts in communication with at least one inverter of the secondary power supply.

A high efficiency multi-mode/multi-phase power conversion device has DC-boost receiving input power from a plurality of DC (e.g., solar) sources, power inverters and an AC grid supply. Power conversion switches are arranged in a stacked configuration with controllable inner and outer switches conveying: in an non-inverting switched mode, an AC voltage from power from the AC grid supply; in an inverting outer switched mode, an AC voltage from power from the AC grid supply; and in an inverting outer and inner switched mode, an inverted voltage from power from the DC-boost circuit. At least one input switch and output to the AC grid supply is coupled to an output of the power inverters and a resonant circuit is coupled to the input switch. A rectifier and/or high voltage AC output tap is coupled to the resonant circuit and a controller is coupled to the power conversion switches and the input switch.