A supply device for a high-power load includes a DC/DC voltage converter disposed between a high-voltage side and a low-voltage side. The DC/DC voltage converter includes a first sub-converter and a second sub-converter. The sub-converters are connected to one another in a converter series circuit between first and second primary-side DC voltage poles. The second sub-converter is connected between first and second secondary-side DC voltage poles. The sub-converters each have at least one AC voltage terminal connected to one another by a coupling device to permit an exchange of electrical power between the first and second sub-converters. The secondary-side DC voltage poles are configured for connection to the high-power load. An arrangement for converting electrical energy into chemical energy with gas generation includes the supply device.

Concentrated solar power and heating systems using solar receivers, and related devices and methods, are generally described.

Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described.

Inventive concentrated solar power systems using solar receivers, and related devices and methods, are generally described.

A method includes operating a wellsite apparatus at a wellsite utilizing mechanical energy or electricity produced at least in part from hydrogen in a fuel source comprising hydrogen. Utilizing mechanical energy or electricity produced at least in part from the hydrogen in the fuel source comprising hydrogen can further include: (a) converting the hydrogen in the fuel source to electricity in one or more fuel cells and utilizing the electricity to operate the wellsite apparatus; and/or (b) combusting the hydrogen in the fuel source in a power generation apparatus to produce electricity and utilizing the electricity to operate the wellsite apparatus; and/or (c) combusting the hydrogen in the fuel source to produce mechanical energy and utilizing the mechanical energy to operate the wellsite apparatus. A system for carrying out the method is also provided.

A system includes a hydrogen gas production system and a power generation system. The hydrogen gas production system includes a heated gas supply line configured for flow of a heated gas, a hydrocarbon supply line, a catalytic pyrolysis reactor configured to be in thermal contact with the heated gas of the heated gas supply line and produce a hydrogen containing gas by pyrolyzing a hydrocarbon introduced therein via the hydrocarbon supply line, and a separator configured to extract a hydrogen gas from the hydrogen containing gas discharged from the catalytic pyrolysis reactor. The power generation system includes a heated gas collection line configured to collect the heated gas after the thermal contact with the catalytic pyrolysis reactor and supply the heated gas to the power generation system, and a gas turbine having a combustor configured to burn the hydrogen gas introduced therein from the separator via a hydrogen supply line.

A system includes a hydrogen gas production system and a power generation system. The hydrogen gas production system includes a heated gas supply line configured for flow of a heated gas, a hydrocarbon supply line, a catalytic pyrolysis reactor configured to be in thermal contact with the heated gas of the heated gas supply line and produce a hydrogen containing gas by pyrolyzing a hydrocarbon introduced therein via the hydrocarbon supply line, and a separator configured to extract a hydrogen gas from the hydrogen containing gas discharged from the catalytic pyrolysis reactor. The power generation system includes a heated gas collection line configured to collect the heated gas after the thermal contact with the catalytic pyrolysis reactor and supply the heated gas to the power generation system, and a gas turbine having a combustor configured to burn the hydrogen gas introduced therein from the separator via a hydrogen supply line.